Subject: RE: [Pce] RE: I-D ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt

From: "Vijayanand C - TLS, Chennai." <[email-masked]>
Date: Mon, 5 Feb 2007 16:35:53 +0530

JP,

We mean that those inter-ASBR TE LSPs which are permitted by
policy/scaling configuration to be propagated outside can be propogated
to PCEs in neighbouring ASes by BGP.This information is not flooded to
all BGP speakers of neighbouring ASes but only to speakers which are on
PCEs or which propogate them to PCEs ( which support the new AFI/SAFI).

 These LSPs may be a sub-set of TE LSPs specifically provisioned for
carrying inter-AS TE traffic and may be a full mesh. If all the ASes
support such a mechanism then the itner-AS TE path can be calculated
using the inter-AS graph of such LSPs and inter-AS links.

Then I've got a much major concern then. Back to when the inter-domain
TE discussion started (a few years back), several potential candidates
have been investigated including the TE aggregation technique that you
propose and that has been excluded for a number of reasons (see also
RFC4105 and RFC4216). Thus we proposed two techniques: per-domain and
the PCE (where no aggregated TE data is leaked between domains !). You
may want to refer to the lists archives for details but TE aggregation
has been rejected, this is precisely why we developed PCE-based
computation for inter-domain TE. 

I certainly do not want to re-open the debate for the Nth time, but just
consider that in your proposal you would not have to flood just one TE
LSP per pair of ASBR but one TE LSP per attribute per pair of ASBRs
(combining affinity, CTs, metric, ... ) and for all domains + this would
of course be dynamic (based on the TE LSP when they get rerouted because
of failures, reoptimization, ...).

[[Vijay ]] I ll go through the arguments in the mailing list archive,
thanks for the pointer.  We are not suggesting this as a solution
always, but use it wherever possible since it is a step towards
optimality. The aggregation and distribution is limited to the PCEs, and
this information is not flooded to the rest of the network. 

But, this kind of itner-ASBR LSP propogation may not be always possible
because of policy and scaling constraints. In such situations we have
only the ASes and their inter-AS links in the form of an inter-AS graph
and we can only find the 'possible' AS paths after eliminating the paths
through inter-AS links which are not feasible and then use methods like
BRPC to complete the path setup.

But in this case, it is probably not worth the work: you do not have the
'possible' AS since you do not have any information about the resource
available within each AS.

[[Vijay ]] But is it not better than trying all possible ASpaths towards
a destination. In this method we can certainly eliminate many of the AS
paths where the inter-AS link cannot support the path. This may also be
useful for finding backup paths since the inter-AS graph is known. 

Hope this helps.

Thanks.

JP.

Regards

Vijay

-----Original Message-----
From: JP Vasseur [mailto:[email-masked]] 
Sent: Saturday, February 03, 2007 4:05 AM
To: Vijayanand C - TLS, Chennai.
Cc: [email-masked]
Subject: Re: [Pce] RE: I-D
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt

Hi,

Let me first try to make sure of something here. When you write "The PCE
shall learn the TE 

   attributes of the inter-AS TE links and the TE tunnels that exist 

   between the ASBRs in the domain."

Are you suggesting to flood via BGP the intra-domain TE LSPs ? In other
words, suppose the following scenario:

AS1---AS2---AS3

You have a mesh of intra-domain TE LSPs between all ASBRs within AS2.

Are you suggesting to flood in AS1 these TE LSPs (and this for all other
ASes that might be between AS1 and the destination domain) ?

Thanks.

JP.

On Feb 1, 2007, at 12:48 AM, Vijayanand C - TLS, Chennai. wrote:

Are you suggesting that  BGP should propagate all possible next-hops/As
paths and regular path selection process avoided for all prefixes which
can be destinations of inter-AS TE tunnels ?

The inter-AS TE link information can be made aware only to the ASes on
either side of the inter-AS link by the IGP. It may not be possible to
propagate it beyond that ( or can it ?).

So some of the possible AS paths found by BGP( if we propagate all
next-hops/aspaths in bgp) may not be worth trying for path setup (by
BRPC) because of violation of some TE constraint.

In our proposal we can pick the paths which are really feasible, since
we have the inter-AS graph, and then invoke methods like BRPC

Regards

Vijay

 

-----Original Message-----
From: JP Vasseur [ <mailto:[email-masked]>
mailto:[email-masked]] 
Sent: Thursday, February 01, 2007 1:19 AM
To: Vijayanand C - TLS, Chennai.
Cc:  <mailto:[email-masked]> [email-masked]
Subject: Re: [Pce] RE: I-D
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt

Hi,

On Jan 25, 2007, at 9:32 AM, Vijayanand C - TLS, Chennai. wrote:

Hello all,

We have submitted the following I-D, please send in your

comments/suggestions

* speaking as a technical contributor *

   In [BRPC], a method to optimally compute a inter-domain TE 

   path for MPLS and GMPS LSPs using the PCE architecture detailed in 

   [PCE_ARCH] is described. However the method described requires the 

   list of Autonomous systems or domains to be determined apriori. 

   Determining the list of ASes/domains to be traversed to reach a 

   destination, satisfying the TE constraints is non-trivial. It 

   requires knowledge of the inter-AS connectivity and the TE 

   characteristics of the inter-AS links along with the knowledge of 

   the available paths within each of the ASes/domains. BGP contains 

   information on the list of ASes to be traversed to reach a 

   destination, however BGP route selection and decision process 

   truncates most of the feasible paths, and it also does not carry 

   the TE characteristics of the inter-AS links and path availability 

   within a domain.  

What does prevent you from relying on BGP to provide you all possible
paths toward 

a specific destination skipping the regular path selection process for
specific routes (see

proposals made in the past) and then use BRPC as currently specified?
The Inter-AS TE

link could easily be obtained via the IGP with minor additions.

This is in my opinion a fundamental question that must first be
addressed before 

moving forward.

Thanks.

JP.

Regards

Vijay

-----Original Message-----

From:  <mailto:[email-masked]> [email-masked] [
<mailto:[email-masked]> mailto:[email-masked]] 

Sent: Tuesday, January 23, 2007 2:20 AM

To:  <mailto:[email-masked]> [email-masked]

Subject: I-D ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt 

A New Internet-Draft is available from the on-line Internet-Drafts 

directories.

            Title                  : A BGP based method to compute
inter-AS Traffic

engineering Label Switched Paths with PCE

            Author(s)          : C. Vijayanand, S. Bhattacharya

            Filename           :

draft-vijay-somen-pce-bgp-interas-te-path-01.txt

            Pages               : 26

            Date                 : 2007-1-22

The ability to compute an optimal path for setting up Traffic 

   engineering Label Switched Paths spanning multiple autonomous 

   systems managed by different operators has been a key requirement in 

   MPLS and GMPLS networks. This document specifies a method of 

   computing inter-AS paths consisting of a list of ASes to be 

   traversed and a list of TE-Tunnels to be traversed in each AS. The 

   method described here uses BGP speakers in the PCEs of each AS to 

   distribute the inter-AS connectivity information and the TE-Tunnels 

   in each AS to its neighbors to facilitate the construction of an 

   inter-AS topology graph which can be used for computing inter-AS

    paths.

A URL for this Internet-Draft is:

<http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-t
e>
http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-te

-path-01.txt

DISCLAIMER:

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It shall not attach any liability on the originator or HCL or its
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reflect the opinions of HCL or its affiliates.

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this message without the prior written consent of the author of this
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https://www1.ietf.org/mailman/listinfo/pce

 

JP,

We mean that those inter-ASBR TE LSPs which are permitted by
policy/scaling configuration to be propagated outside can be propogated
to PCEs in neighbouring ASes by BGP.This information is not flooded to
all BGP speakers of neighbouring ASes but only to speakers which are on
PCEs or which propogate them to PCEs ( which support the new AFI/SAFI).

 These LSPs may be a sub-set of TE LSPs specifically provisioned for
carrying inter-AS TE traffic and may be a full mesh. If all the ASes
support such a mechanism then the itner-AS TE path can be calculated
using the inter-AS graph of such LSPs and inter-AS links.

Then I've got a much major concern then. Back to when the inter-domain
TE discussion started (a few years back), several potential candidates
have been investigated including the TE aggregation technique that you
propose and that has been excluded for a number of reasons (see also
RFC4105 and RFC4216). Thus we proposed two 2.0pt;
color:black'>-----Original Message-----</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>From: <a href="mailto:[email-masked]"><span
style='-khtml-text-decorations-in-effect: underline'>[email-masked]</span></a>
[</span></font></span><font color=black><span style='color:black'><a
href="mailto:[email-masked]"><span class=apple-style-span><span
style='-khtml-text-decorations-in-effect: underline'><span style='-khtml-text-decorations-in-effect: underline'>mailto:[email-masked]</span></span></span></a><span
class=apple-style-span>]&nbsp;</span></span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Sent: Tuesday, January 23, 2007 2:20 AM</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>To: </span></font></span><font color=black><span style='color:
black'><a href="mailto:[email-masked]"><span class=apple-style-span><span
style='-khtml-text-decorations-in-effect: underline'><span style='-khtml-text-decorations-in-effect: underline'>[email-masked]</span></span></span></a></span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>Subject: I-D
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt&nbsp;</span></font></span></p>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>A New Internet-Draft is available from the on-line
Internet-Drafts&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>directories.</span></font></span></p>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Title&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
: A BGP based method to compute inter-AS Traffic</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>engineering Label Switched Paths with PCE</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-lefttechniques: per-domain and
the PCE (where no aggregated TE data is leaked between domains !). You
may want to refer to the lists archives for details but TE aggregation
has been rejected, this is precisely why we developed PCE-based
computation for inter-domain TE. 

I certainly do not want to re-open the debate for the Nth time, but just
consider that in your proposal you would not have to flood just one TE
LSP per pair of ASBR but one TE LSP per attribute per pair of ASBRs
(combining affinity, CTs, metric, ... ) and for all domains + this would
of course be dynamic (based on the TE LSP when they get rerouted because
of failures, reoptimization, ...).

[[Vijay ]] I ll go through the arguments in the mailing list archive,
thanks for the pointer.  We are not suggesting this as a solution
always, but use it wherever possible since it is a step towards
optimality. The aggregation and distribution is limited to the PCEs, and
this information is not flooded to the rest of the network. 

But, this kind of itner-ASBR LSP propogation may not be always possible
because of policy and scaling constraints. In such situations we have
only the ASes and their inter-AS links in the form of an inter-AS graph
and we can only find the 'possible' AS paths after eliminating the paths
through inter-AS links which are not feasible and then use methods like
BRPC to complete the path setup.

But in this case, it is probably not worth the work: you do not have the
'possible' AS since you do not have any information about the resource
available within each AS.

[[Vijay ]] But is it not better than trying all possible ASpaths towards
a destination. In this method we can certainly eliminate many of the AS
paths where the inter-AS link cannot support the path. This may also be
useful for finding backup paths since the inter-AS graph is known. 

Hope this helps.

Thanks.

JP.

Regards

Vijay

-----Original Message-----
From: JP Vasseur [mailto:[email-masked]] 
Sent: Saturday, February 03, 2007 4:05 AM
To: Vijayanand C - TLS, Chennai.
Cc: [email-masked]
Subject: Re: [Pce] RE: I-D
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt

Hi,

Let me first try to make sure of something here. When you write "The PCE
shall learn the TE 

   attributes of the inter-AS TE links and the TE tunnels that exist 

   between the ASBRs in the domain."

Are you suggesting to flood via BGP the intra-domain TE LSPs ? In other
words, suppose the following scenario:

AS1---AS2---AS3

You have a mesh of intra-domain TE LSPs between all ASBRs within AS2.

Are you suggesting to flood in AS1 these TE LSPs (and this for all other
ASes that might be between AS1 and the destination domain) ?

Thanks.

JP.

On Feb 1, 2007, at 12:48 AM, Vijayanand C - TLS, Chennai. wrote:

Are you suggesting that  BGP should propagate all possible next-hops/As
paths and regular path selection process avoided for all prefixes which
can be destinations of inter-AS TE tunnels ?

The inter-AS TE link information can be made aware only to the ASes on
either side of the inter-AS link by the IGP. It may not be possible to
propagate it beyond that ( or can it ?).

So some of the possible AS paths found by BGP( if we propagate all
next-hops/aspaths in bgp) may not be worth trying for path setup (by
BRPC) because of violation of some TE constraint.

In our proposal we can pick the paths which are really feasible, since
we have the inter-AS graph, and then invoke methods like BRPC

Regards

Vijay

 

-----Original Message-----
From: JP Vasseur [ <mailto:[email-masked]>
mailto:[email-masked]] 
Sent: Thursday, February 01, 2007 1:19 AM
To: Vijayanand C - TLS, Chennai.
Cc:  <mailto:[email-masked]> [email-masked]
Subject: Re: [Pce] RE: I-D
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt

Hi,

On Jan 25, 2007, at 9:32 AM, Vijayanand C - TLS, Chennai. wrote:

Hello all,

We have submitted the following I-D, please send in your

comments/:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Author(s)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : C.
Vijayanand, S. Bhattacharya</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Filename&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; :</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>draft-vijay-somen-pce-bgp-interas-te-path-01.txt</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Pages&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
: 26</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Date&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
: 2007-1-22</span></font></span></p>

</div>

<div style='margin-left:.5in;min-height: 14px'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>The ability to compute an optimal path for setting up
Traffic&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; engineering Label Switched Paths spanning multiple
autonomous&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; systems managed by different operators has been a key
requirement in&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; MPLS and GMPLS networks. This document specifies a
method of&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; computing inter-AS paths consisting of a list of ASes
to be&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; traversed and a list of TE-Tunnels to be traversed in
each AS. The&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span stylesuggestions

* speaking as a technical contributor *

   In [BRPC], a method to optimally compute a inter-domain TE 

   path for MPLS and GMPS LSPs using the PCE architecture detailed in 

   [PCE_ARCH] is described. However the method described requires the 

   list of Autonomous systems or domains to be determined apriori. 

   Determining the list of ASes/domains to be traversed to reach a 

   destination, satisfying the TE constraints is non-trivial. It 

   requires knowledge of the inter-AS connectivity and the TE 

   characteristics of the inter-AS links along with the knowledge of 

   the available paths within each of the ASes/domains. BGP contains 

   information on the list of ASes to be traversed to reach a 

   destination, however BGP route selection and decision process 

   truncates most of the feasible paths, and it also does not carry 

   the TE characteristics of the inter-AS links and path availability 

   within a domain.  

What does prevent you from relying on BGP to provide you all possible
paths toward 

a specific destination skipping the regular path selection process for
specific routes (see

proposals made in the past) and then use BRPC as currently specified?
The Inter-AS TE

link could easily be obtained via the IGP with minor additions.

This is in my opinion a fundamental question that must first be
addressed before 

moving forward.

Thanks.

JP.

Regards

Vijay

-----Original Message-----

From:  <mailto:[email-masked]> [email-masked] [
<mailto:[email-masked]> mailto:[email-masked]] 

Sent: Tuesday, January 23, 2007 2:20 AM

To:  <mailto:[email-masked]> [email-masked]

Subject: I-D ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt 

A New Internet-Draft is available from the on-line Internet-Drafts 

directories.

            Title                  : A BGP based method to compute
inter-AS Traffic

engineering Label Switched Paths with PCE

            Author(s)          : C. Vijayanand, S. Bhattacharya

            Filename           :

draft-vijay-somen-pce-bgp-interas-te-path-01.txt

            Pages               : 26

            Date                 : 2007-1-22

The ability to compute an optimal path for setting up Traffic 

   engineering Label Switched Paths spanning multiple autonomous 

   systems managed by different operators has been a key requirement in 

   MPLS and GMPLS networks. This document specifies a method of 

   computing inter-AS paths consisting of a list of ASes to be 

   traversed and a list of TE-Tunnels to be traversed in each AS. The 

   method described here uses BGP speakers in the PCEs of each AS to 

   distribute the inter-AS connectivity information and the TE-Tunnels 

   in each AS to its neighbors to facilitate the construction of an 

   inter-AS topology graph which can be used for computing inter-AS

    paths.

A URL for this Internet-Draft is:

<http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-t
e>
http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-te

-path-01.txt

DISCLAIMER:

------------------------------------------------------------------------
-----------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and
intended for the named recipient(s) only.

It shall not attach any liability on the originator or HCL or its
affiliates. Any views or opinions presented in 

this email are solely those of the author and may not necessarily
reflect the opinions of HCL or its affiliates.

Any form of reproduction, dissemination, copying, disclosure,
modification, distribution and / or publication of 

this message without the prior written consent of the author of this
e-mail is strictly prohibited. If you have 

received this email in error please delete it and notify the sender
immediately. Before opening any mail and 
='font-size:12.0pt;
color:black'>&nbsp;&nbsp; method described here uses BGP speakers in the PCEs
of each AS to&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; distribute the inter-AS connectivity information and
the TE-Tunnels&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; in each AS to its neighbors to facilitate the
construction of an&nbsp;</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp;&nbsp; inter-AS topology graph which can be used for
computing inter-AS</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>&nbsp; &nbsp; paths.</span></font></span></p>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>A URL for this Internet-Draft is:</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'><a
href="http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-te"><span
class=apple-style-span><span style='-khtml-text-decorations-in-effect: underline'><span
style='-khtml-text-decorations-in-effect: underline'>http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-te</span></span></span></a></span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>-path-01.txt</span></font></span></p>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div style='min-height: 14px'>

<div style='margin-left:.5in'>

<div>

<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>DISCLAIMER:</span></font></span></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><span class=apple-style-span><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
color:black'>-----------------------------------------------------------------------------------------------------------------------</span></font></span></p>

</div>

<div style='min-
attachments please check them for viruses and defect.

------------------------------------------------------------------------
-----------------------------------------------

_______________________________________________

Pce mailing list

 <mailto:[email-masked]> [email-masked]

 <https://www1.ietf.org/mailman/listinfo/pce>
https://www1.ietf.org/mailman/listinfo/pce

 

_______________________________________________
Pce mailing list
[email-masked]
https://www1.ietf.org/mailman/listinfo/pce

---

From: JP Vasseur <[email-masked]>
Date: /div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;</span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>JP.</span></font></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><br>
<br>
</span></font></p>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'><span
style=3D'border-spacing: 0px =
0px;text-align:auto;-khtml-text-decorations-in-effect: none;
-apple-text-size-adjust: auto;orphans: 2;widows: =
2;word-spacing:0px'>&nbsp;</span></font></span></p>

</div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Regards</span></f=
ont></span></p>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Vijay</span></fon=
t></span></p>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

<div style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in =
0in 4.0pt'>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dblack
face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma;color:black'>-----Original
Message-----</span></font></span><font size=3D2 color=3Dblack =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma;color:black'><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>From:</span></b>
JP Vasseur [<a =
href=3D"mailto:[email-masked]">mailto:[email-masked]</a>] =
</span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>Sent:</span></b>
Saturday, February 03, 2007 4:05 AM</span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>To:</span></b>
Vijayanand C - TLS, Chennai.</span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>Cc:</span></b> <a
href=3D"mailto:[email-masked]">[email-masked]</a></span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>Subject:</span></b>
Re: [Pce] RE: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt</span></span></fo=
nt></p>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>Hi,</span></font></span></p>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>Let me first
try to make sure of something here. When you write =
&quot;</span></font></span><span
class=3Dapple-style-span><font size=3D1 color=3Dblack><span =
style=3D'font-size:9.0pt;
color:black'>The PCE shall learn the TE&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D1 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;color:black'>&nbsp;&nbsp;
attributes of the inter-AS TE links and the TE tunnels that =
exist&nbsp;</span></font></span></p>

</di Mon, 5 Feb 2007 06:24:11 -0500
To: "Vijayanand C - TLS, Chennai." <[email-masked]>
Cc: [email-masked]

--===============2006108600==
Content-Type: multipart/alternative; boundary=Apple-Mail-177--906076241

--Apple-Mail-177--906076241
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=WINDOWS-1252;
	delsp=yes;
	format=flowed

Hi Vijay,

On Feb 5, 2007, at 6:05 AM, Vijayanand C - TLS, Chennai. wrote:

> JP,
>
>
> We mean that those inter-ASBR TE LSPs which are permitted by policy/=20=

> scaling configuration to be propagated outside can be propogated to =20=

> PCEs in neighbouring ASes by BGP.This information is not flooded to =20=

> all BGP speakers of neighbouring ASes but only to speakers which =20
> are on PCEs or which propogate them to PCEs ( which support the new =20=

> AFI/SAFI).
>
>
>  These LSPs may be a sub-set of TE LSPs specifically provisioned =20
> for carrying inter-AS TE traffic and may be a full mesh. If all the =20=

> ASes support such a mechanism then the itner-AS TE path can be =20
> calculated using the inter-AS graph of such LSPs and inter-AS links.
>
>
>
> Then I've got a much major concern then. Back to when the inter-=20
> domain TE discussion started (a few years back), several potential =20
> candidates have been investigated including the TE aggregation =20
> technique that you propose and that has been excluded for a number =20
> of reasons (see also RFC4105 and RFC4216). Thus we proposed two =20
> techniques: per-domain and the PCE (where no aggregated TE data is =20
> leaked between domains !). You may want to refer to the lists =20
> archives for details but TE aggregation has been rejected, this is =20
> precisely why we developed PCE-based computation for inter-domain TE.
>
>
> I certainly do not want to re-open the debate for the Nth time, but =20=

> just consider that in your proposal you would not have to flood =20
> just one TE LSP per pair of ASBR but one TE LSP per attribute per =20
> pair of ASBRs (combining affinity, CTs, metric, ... ) and for all =20
> domains + this would of course be dynamic (based on the TE LSP when =20=

> they get rerouted because of failures, reoptimization, ...).
>
>
>
>
> [[Vijay ]] I ll go through the arguments in the mailing list =20
> archive, thanks for the pointer.  We are not suggesting this as a =20
> solution always, but use it wherever possible since it is a step =20
> towards optimality. The aggv>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D1 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;color:black'>&nbsp;&nbsp;
between the ASBRs in the domain.&quot;</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>Are you
suggesting to flood via BGP the intra-domain TE LSPs ? In other words, =
suppose
the following scenario:</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>AS1---AS2---AS3</span></font></spa=
n></p>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>You have a
mesh of intra-domain TE LSPs between all ASBRs within =
AS2.</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>Are you suggesting
to flood in AS1 these TE LSPs (and this for all other ASes that might be
between AS1 and the destination domain) ?</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>Thanks.</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>JP.</span></font></span></p>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:black'>On =
Feb 1,
2007, at 12:48 AM, Vijayanand C - TLS, Chennai. =
wrote:</span></font></span></p>

</div>

<p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></p>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><span =
style=3D'border-spacing: 0px 0px;
text-align:auto;-khtml-text-decorations-in-effect: =
none;-apple-text-size-adjust: auto;
orphans: 2;widows: 2;word-spacing:0px'><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Are you =
suggesting that
&nbsp;BGP should propagate all possible next-hops/As paths and regular =
path
selection process avoided for all prefixes which can be destinations of
inter-AS TE tunnels ?</span></span></font></span></p>

<divregation and distribution is limited to =20
> the PCEs, and this information is not flooded to the rest of the =20
> network.
I understand, but still, the solution requires to set up N meshes of =20
TE LSPs between all ASBRs (there are many deployment where the TE =20
LSPs are not deployed between the ASBRs but a set of P routers) where =20=

N may be large depending on the set of attributes in use. Note that =20
the attributes of these TE LSPs are dynamic (bandwidth, metric =20
(dependency with the path), ...
Furthermore this is not compliant with RFC4216 and RFC4105.
All the arguments that have been discussed on the mailing list still =20
applies here: also think of the mechanisms that is required to ensure =20=

a quick feed-back mechanism between the Inter-ASBR TE LSP states =20
announced through BGP to the various domains and the path computation =20=

process during a burst of requests.

>
> But, this kind of itner-ASBR LSP propogation may not be always =20
> possible because of policy and scaling constraints. In such =20
> situations we have only the ASes and their inter-AS links in the =20
> form of an inter-AS graph and we can only find the =91possible=92 AS =20=

> paths after eliminating the paths through inter-AS links which are =20
> not feasible and then use methods like BRPC to complete the path =20
> setup.
>
>
> But in this case, it is probably not worth the work: you do not =20
> have the 'possible' AS since you do not have any information about =20
> the resource available within each AS.
>
>
> [[Vijay ]] But is it not better than trying all possible ASpaths =20
> towards a destination. In this method we can certainly eliminate many
Why "many" ? That depends on many factors .. that may be a low as 0 =20
if the inter-AS TE links are all acceptable for a set of constraints.
> of the AS paths where the inter-AS link cannot support the path. =20
> This may also be useful for finding backup paths since the inter-AS =20=

> graph is known.
Thanks.

JP.
> Subject: Re: [Pce] RE: I-D ACTION:draft-vijay-somen-pce-bgp-interas-=20=

> te-path-01.txt
>
>
> Hi,
>
>
> Let me first try to make sure of something here. When you write =20
> "The PCE shall learn the TE
>
> Are you suggesting to flood via BGP the intra-domain TE LSPs ? In =20
> other words, suppose the following scenario:
>
>
> AS1---AS2---AS3
>
> Are you suggesting to flood in AS1 these TE LSPs (and this for all =20
> other ASes that might be between AS1 and the destination domain) ?
>
>
> Thanks.
>
>
> JP.
>
>
> Are you suggesting that  BGP should propagate all possible next-=20
> hops/As paths and regular path selection process avoided for all =20
> prefixes which can be destinations of inter-AS TE tunnels ?
>
>
> The inter-AS TE link information can be made aware only to the ASes =20=

> on either side of the inter-AS link by the IGP. It may not be =20
> possible to propagate it beyond that ( or can it ?).
>
> So some of the possible AS paths found by BGP( if we propagate all =20
> next-hops/aspaths in bgp) may not be worth trying for path setup =20
> (by BRPC) because of violation of some TE constraint.
>
>
> In our proposal we can pick the paths which are really feasible, =20
> since we have the inter-AS graph, and then invoke methods like BRPC
>
>
> Regards
>
> Vijay
>
>
>
>
>
> Subject: Re: [Pce] RE: I-D ACTION:draft-vijay-somen-pce-bgp-interas-=20=

> te-path-01.txt

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>The
inter-AS TE link information can be made aware only to the ASes on =
either side
of the inter-AS link by the IGP. It may not be possible to propagate it =
beyond
that ( or can it ?).</span></font></span></p>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>So some
of the possible AS paths found by BGP( if we propagate all =
next-hops/aspaths in
bgp) may not be worth trying for path setup (by BRPC) because of =
violation of
some TE constraint.</span></font></span></p>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>In our
proposal we can pick the paths which are really feasible, since we have =
the
inter-AS graph, and then invoke methods like =
BRPC</span></font></span></p>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Regards</span></f=
ont></span></p>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Vijay</span></fon=
t></span></p>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<div>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt></span></p>

</div>

</div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D2 color=3Dblack face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma;
color:black'>-----Original Message-----</span></font></span><font =
size=3D2
color=3Dblack face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma;
color:black'><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>From:</span></b>
JP Vasseur [<a href=3D"mailto:[email-masked]"><span =
style=3D'-khtml-text-decorations-in-effect: =
underline'>mailto:[email-masked]</span></a>]
</span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>Sent:</span></b>
Thursday, February 01, 2007 1:19 AM</span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>To:</span></b> Vijayanand
C - TLS, Chennai.</span><br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>Cc:</span></b> <a
href=3D"mailto:[email-masked]"><span =
style=3D'-khtml-text-decorations-in-effect: =
underline'>[email-masked]</span></a></span><> Hi,
> What does prevent you from relying on BGP to provide you all =20
> possible paths toward
>
> a specific destination skipping the regular path selection process =20
> for specific routes (see
>
> proposals made in the past) and then use BRPC as currently =20
> specified? The Inter-AS TE
>
> This is in my opinion a fundamental question that must first be =20
> addressed before
>
> moving forward.
>
>
> Thanks.
>
>
> JP.
>
>
>
> Regards
>
> Vijay
>
>
> From: [email-masked] [mailto:[email-masked]]
>
> To: [email-masked]
>
>             Title                  : A BGP based method to compute =20
> inter-AS Traffic
>
>    systems managed by different operators has been a key =20
> requirement in
>
> http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-=20
> interas-te
>
> -path-01.txt
>
>
>
>
> DISCLAIMER:
>
> ----------------------------------------------------------------------=20=

> -------------------------------------------------
>
>
> The contents of this e-mail and any attachment(s) are confidential =20
> and intended for the named recipient(s) only.
>
> It shall not attach any liability on the originator or HCL or its =20
> this email are solely those of the author and may not necessarily =20
> Any form of reproduction, dissemination, copying, disclosure, =20
> this message without the prior written consent of the author of =20
> this e-mail is strictly prohibited. If you have
>
> received this email br>
<span class=3Dapple-style-span><b><span =
style=3D'font-weight:bold'>Subject:</span></b>
Re: [Pce] RE: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt</span></span></fo=
nt></p>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Hi,</span></font></span></p>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

<div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>On Jan 25, 2007, at 9:32 AM, Vijayanand C - TLS, Chennai. =
wrote:</span></font></span></p>

</div>

<div style=3D'margin-left:.5in;margin-bottom:12.0pt'>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Hello all,</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>We have submitted the following I-D, please send in =
your</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>comments/suggestions</span></font></span></p>

</div>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>* speaking as a technical contributor =
*</span></font></span></p>

</div>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp; &nbsp;In [BRPC], a method to optimally compute a
inter-domain TE&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; path for MPLS and GMPS LSPs using the PCE
architecture detailed in&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbspin error please delete it and notify the sender =20=

> ----------------------------------------------------------------------=20=

> -------------------------------------------------
>
>

--Apple-Mail-177--906076241
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=WINDOWS-1252

<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">Hi Vijay,<DIV><BR><DIV><DIV>On =
Feb 5, 2007, at 6:05 AM, Vijayanand C - TLS, Chennai. wrote:</DIV><BR =
class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 16px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><P class=3D"MsoNormal"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN style=3D"font-size: =
10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, 128); font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"color: rgb(0, 0, =
128); font-family: Arial; font-size: 13.3333px; =
">JP,</SPAN></SPAN></FONT></P><DIV><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN style=3D"font-size: =
10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, 128); font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"color: rgb(0, 0, =
128); font-family: Arial; font-size: 13.3333px; =
">=A0</SPAN></SPAN></FONT><BR class=3D"khtml-block-placeholder"></DIV><DIV=
 style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt"><DIV><DIV><DIV><P class=3D"MsoNormal"><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">We mean that those inter-ASBR TE LSPs which are permitted =
by policy/scaling configuration to be propagated outside can be =
propogated to PCEs in neighbouring ASes by BGP.This information is not =
flooded to all BGP speakers of neighbouring ASes but only to speakers =
which are on PCEs or which propogate them to PCEs ( which support the =
new AFI/SAFI).</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0These LSPs may be a sub-set of TE LSPs specifically =
provisioned for carrying inter-AS TE traffic and may be a full mesh. If =
all the ASes support such a mechanism then the itner-AS TE path can be =
calculated using the inter-AS graph of such LSPs and inter-AS =
links.</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><FONT size=3D"3" =
color=3D"black" face=3D"Helvetica"><SPAN =
style=3D"font-size:12.0pt;font-family:Helvetica;color:black">=A0</SPAN></F=
ONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><FONT =
size=3D"3" face=3D"Times New Roman">;&nbsp; [PCE_ARCH] is described. However the method =
described
requires the&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; list of Autonomous systems or domains to be
determined apriori.&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; Determining the list of ASes/domains to be =
traversed
to reach a&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; destination, satisfying the TE constraints is
non-trivial. It&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; requires knowledge of the inter-AS =
connectivity and
the TE&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; characteristics of the inter-AS links along =
with the
knowledge of&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; the available paths within each of the =
ASes/domains.
BGP contains&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; information on the list of ASes to be =
traversed to
reach a&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; destination, however BGP route selection and =
decision
process&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; truncates most of the feasible paths, and it =
also
does not carry&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; the TE characteristics of the inter-AS links =
and path
availability&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D1 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:9.0pt;
color:black'>&nbsp;&nbsp; within a domain. =
&nbsp;</span></font></span></p>

</div>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>What does prevent you from relying on BGP to provide you =
all
possible paths toward&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Da<SPAN style=3D"font-size: 12.0pt; =
font-family: Times New Roman; "></SPAN><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0</SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">Then =
I've got a=A0</SPAN><B style=3D"font-family: Times New Roman; =
font-weight: bold; "><SPAN style=3D"font-weight:bold; font-family: Times =
New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; font-weight: bold; ">much</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">=A0major concern then. Back to when the inter-domain TE discussion =
started (a few years back), several potential candidates have been =
investigated including the TE aggregation technique that you propose and =
that has been excluded for a=A0</SPAN><B style=3D"font-family: Times New =
Roman; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; font-weight: bold; =
">number</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0of reasons (see also RFC4105 =
and RFC4216). Thus we proposed two techniques: per-domain and the PCE =
(where no aggregated TE data is leaked between domains !). You may want =
to refer to the lists archives for details but TE aggregation has been =
rejected, this is precisely why we=A0developed=A0PCE-based computation =
for inter-domain TE.=A0</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT =
size=3D"3" face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">I =
certainly do not want to re-open the debate for the Nth time, but just =
consider that in your proposal you would not have to flood just one TE =
LSP per pair of ASBR but one TE LSP per attribute per pair of ASBRs =
(combining affinity, CTs, metric, ... ) and for all domains + this would =
of course be dynamic (based on the TE LSP when they get rerouted because =
of failures, reoptimization, ...).</SPAN></SPAN></FONT></P></DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><BR =
style=3D"font-family: Times New Roman; "><BR style=3D"font-family: Times =
New Roman; "></SPAN></FONT></P><P class=3D"MsoNormal"><B =
style=3D"font-family: Times New Roman; font-weight: bold; "><I =
style=3D"font-family: Times New Roman; font-style: italic; font-weight: =
bold; "><FONT size=3D"2" color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold; =
font-style:italic; color: rgb(0, 0, 128); font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; font-style: italic; font-weight: bold; =
">[[Vijay ]] I ll go through the arguments in the mailing list archive, =
thanks for the pointer. =A0We are not suggesting this as a solution =
always, but use it wherever possible since it is a step towards =
optimality. The aggregation and distribution is limited to the PCEs, and =
this information is not flooded to the rest of the =
network.</SPAN></SPAN></FONT></I></B></P></DIV></DIV></DIV></DIV></SPAN></=
BLOCKQUOTE><DIV>I understand, but still, the solution requires to set up =
N meshes of TE LSPs between all ASBRs (there are many deployment where =
the TE LSPs are not deployed between the ASBRs but a set of P routers) =
where N may be lpple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>a specific destination skipping the regular path selection =
process
for specific routes (see</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>proposals made in the past) and then use BRPC as currently
specified? The Inter-AS TE</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>link could easily be obtained via the IGP with minor =
additions.</span></font></span></p>

</div>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>This is in my opinion a fundamental question that must =
first be
addressed before&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>moving forward.</span></font></span></p>

</div>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Thanks.</span></font></span></p>

</div>

<div>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>JP.</span></font></span></p>

</div>

<div style=3D'margin-left:.5in;margin-bottom:12.0pt'>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Regards</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Vijay</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:1arge depending on the set of attributes in use. Note =
that the attributes of these TE LSPs are dynamic (bandwidth, metric =
(dependency with the path), ...=A0</DIV><DIV>Furthermore this is not =
compliant with RFC4216 and RFC4105.</DIV><DIV>All the arguments that =
have been discussed on the mailing list still applies here: also think =
of the mechanisms that is required to ensure a quick feed-back mechanism =
between the Inter-ASBR TE LSP states announced=A0through BGP to the =
various domains and the path computation process during a burst of =
requests.</DIV><BR><BLOCKQUOTE type=3D"cite"><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 16px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><DIV style=3D"border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt"><DIV><DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN style=3D"border-spacing: 0px =
0px;text-align:auto;-khtml-text-decorations-in-effect: none; =
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px; =
color: rgb(0, 0, 128); font-family: Arial; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; ">=A0</SPAN></SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">But, this kind of itner-ASBR LSP propogation may not be =
always possible because of policy and scaling constraints. In such =
situations we have only the ASes and their inter-AS links in the form of =
an inter-AS graph and we can only find the =91possible=92 AS paths after =
eliminating the paths through inter-AS links which are not feasible and =
then use methods like BRPC to complete the path =
setup.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><FONT size=3D"3" =
face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">But =
in this case, it is probably not worth the work: you do not have the =
'possible' AS since you do not have any information about the resource =
available within each AS.</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT =
size=3D"3" color=3D"navy" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:navy; color: rgb(0, 0, 128); =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Times New Roman; =
">=A0</SPAN></SPAN></FONT><BR class=3D"khtml-block-placeholder"></DIV><P =
class=3D"MsoNormal"><B style=3D"font-family: Times New Roman; =
font-weight: bold; "><I style=3D"font-family: Times New Roman; =
font-style: italic; font-weight: bold; "><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold; =
font-style:italic; color: rgb(0, 0, 128); font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 122.0pt;
color:black'>-----Original Message-----</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>From: <a href=3D"mailto:[email-masked]"><span
style=3D'-khtml-text-decorations-in-effect: =
underline'>[email-masked]</span></a>
[</span></font></span><font color=3Dblack><span style=3D'color:black'><a
href=3D"mailto:[email-masked]"><span =
class=3Dapple-style-span><span
style=3D'-khtml-text-decorations-in-effect: underline'><span =
style=3D'-khtml-text-decorations-in-effect: =
underline'>mailto:[email-masked]</span></span></span></a><span
class=3Dapple-style-span>]&nbsp;</span></span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Sent: Tuesday, January 23, 2007 2:20 =
AM</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>To: </span></font></span><font color=3Dblack><span =
style=3D'color:
black'><a href=3D"mailto:[email-masked]"><span =
class=3Dapple-style-span><span
style=3D'-khtml-text-decorations-in-effect: underline'><span =
style=3D'-khtml-text-decorations-in-effect: =
underline'>[email-masked]</span></span></span></a></span></font></=
p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Subject: I-D
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt&nbsp;</span></fon=
t></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>A New Internet-Draft is available from the on-line
Internet-Drafts&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>directories.</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;
Title&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
: A BGP based method to compute inter-AS =
Traffic</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>engineering Label Switched Paths with =
PCE</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left8); font-family: =
Arial; font-size: 13.3333px; font-style: italic; font-weight: bold; =
">[[Vijay ]] But is it not better than trying all possible ASpaths =
towards a destination. In this method we can certainly eliminate many =
<BR></SPAN></SPAN></FONT></I></B></P></DIV></DIV></DIV></DIV></DIV></SPAN>=
</BLOCKQUOTE>Why "many" ? That depends on many factors .. that may be a =
low as 0 if the inter-AS TE links are all acceptable for a set of =
constraints.<BR><BLOCKQUOTE type=3D"cite"><SPAN class=3D"Apple-style-span"=
 style=3D"border-collapse: separate; border-spacing: 0px 0px; color: =
rgb(0, 0, 0); font-family: Helvetica; font-size: 16px; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><DIV style=3D"border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt"><DIV><DIV><DIV><P class=3D"MsoNormal"><B =
style=3D"font-family: Times New Roman; font-weight: bold; "><I =
style=3D"font-family: Times New Roman; font-style: italic; font-weight: =
bold; "><FONT size=3D"2" color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold; =
font-style:italic; color: rgb(0, 0, 128); font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; font-style: italic; font-weight: bold; ">of =
the AS paths where the inter-AS link cannot support the path. This may =
also be useful for finding backup paths since the inter-AS graph is =
known.</SPAN></SPAN></FONT></I></B></P></DIV></DIV></DIV></DIV></DIV></SPA=
N></BLOCKQUOTE>Thanks.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>JP.<BR><BLOCKQUOTE =
type=3D"cite"><SPAN class=3D"Apple-style-span" style=3D"border-collapse: =
separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 16px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: =
0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><DIV style=3D"border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt"><DIV><DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">Hope =
this helps.</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT size=3D"3" =
face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">Thanks.</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT size=3D"3" =
face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">JP.</SPAN></SPAN></FONT></P></DIV><P class=3D"MsoNormal"><FONT =
size=3D"3" face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; =
font-family: Times New Roman; "><BR style=3D"font-family: Times New =
Roman; "><BR style=3D"font-family: Times New Roman; =
"><:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;
Author(s)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : C.
Vijayanand, S. Bhattacharya</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;
Filename&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
:</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>draft-vijay-somen-pce-bgp-interas-te-path-01.txt</span></fon=
t></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;
Pages&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;
: 26</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;
Date&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;
: 2007-1-22</span></font></span></p>

</div>

<div style=3D'margin-left:.5in;min-height: 14px'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></font></span></p>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>The ability to compute an optimal path for setting up
Traffic&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; engineering Label Switched Paths spanning =
multiple
autonomous&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; systems managed by different operators has =
been a key
requirement in&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; MPLS and GMPLS networks. This document =
specifies a
method of&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; computing inter-AS paths consisting of a list =
of ASes
to be&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; traversed and a list of TE-Tunnels to be =
traversed in
each AS. The&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style/SPAN></FONT></P><DIV><DIV><DIV><SPAN class=3D"apple-style-span"><FONT =
size=3D"2" color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN style=3D"border-spacing: 0px =
0px;text-align:auto;-khtml-text-decorations-in-effect: none; =
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px; =
color: rgb(0, 0, 128); font-family: Arial; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; ">=A0</SPAN></SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Regards</SPAN></SPAN></FONT></SPAN></P><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Vijay</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV =
style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt"><P class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT =
size=3D"2" color=3D"black" face=3D"Tahoma"><SPAN =
style=3D"font-size:10.0pt;font-family:Tahoma;color:black; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; ">-----Original =
Message-----</SPAN></SPAN></FONT></SPAN><FONT size=3D"2" color=3D"black" =
face=3D"Tahoma"><SPAN =
style=3D"font-size:10.0pt;font-family:Tahoma;color:black; font-size: =
13.3333px; "><BR style=3D"font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"apple-style-span"><B style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; "><SPAN =
style=3D"font-weight:bold; font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; ">From:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> JP Vasseur [</SPAN><A =
href=3D"mailto:[email-masked]"><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Tahoma; font-size: =
13.3333px; -khtml-text-decorations-in-effect: underline; =
">mailto:[email-masked]</SPAN></A><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; ">] =
</SPAN></SPAN><BR style=3D"font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"apple-style-span"><B style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; "><SPAN =
style=3D"font-weight:bold; font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; ">Sent:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.33=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; method described here uses BGP speakers in the =
PCEs
of each AS to&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; distribute the inter-AS connectivity =
information and
the TE-Tunnels&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; in each AS to its neighbors to facilitate the
construction of an&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp;&nbsp; inter-AS topology graph which can be used for
computing inter-AS</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>&nbsp; &nbsp; paths.</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>A URL for this Internet-Draft is:</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:black'><a
href=3D"http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-int=
eras-te"><span
class=3Dapple-style-span><span =
style=3D'-khtml-text-decorations-in-effect: underline'><span
style=3D'-khtml-text-decorations-in-effect: =
underline'>http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-=
interas-te</span></span></span></a></span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>-path-01.txt</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>DISCLAIMER:</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>------------------------------------------------------------=
-----------------------------------------------------------</span></font>=
</span></p>

</div>

<div style=3D'min-33px; "> Saturday, February 03, 2007 4:05 AM</SPAN></SPAN><BR =
style=3D"font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"apple-style-span"><B style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; ">To:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> Vijayanand C - TLS, Chennai.</SPAN></SPAN><BR =
style=3D"font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"apple-style-span"><B style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; ">Cc:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> </SPAN><A href=3D"mailto:[email-masked]"><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: =
Tahoma; font-size: 13.3333px; -khtml-text-decorations-in-effect: =
underline; ">[email-masked]</SPAN></A></SPAN><BR style=3D"font-family: =
Tahoma; font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">Subject:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> Re: [Pce] RE: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt</SPAN></SPAN></SPA=
N></FONT></P><DIV><DIV><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; =
">Hi,</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Let me first try to make sure of something here. When you write =
"</SPAN></SPAN></FONT></SPAN><SPAN class=3D"apple-style-span"><FONT =
size=3D"1" color=3D"black"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">The PCE shall learn the =
TE=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"1" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:9.0pt;color:black; font-family: Times New Roman; =
font-size: 12px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; font-size: 12px; ">=A0=A0 attributes of the inter-AS TE =
links and the TE tunnels that =
exist=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"1" =
colheight: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>The contents of this e-mail and any attachment(s) are =
confidential
and intended for the named recipient(s) only.</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>It shall not attach any liability on the originator or HCL =
or its
affiliates. Any views or opinions presented =
in&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>this email are solely those of the author and may not =
necessarily
reflect the opinions of HCL or its affiliates.</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Any form of reproduction, dissemination, copying, =
disclosure,
modification, distribution and / or publication =
of&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>this message without the prior written consent of the =
author of
this e-mail is strictly prohibited. If you =
have&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>received this email in error please delete it and notify =
the
sender immediately. Before opening any mail =
and&nbsp;</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>attachments please check them for viruses and =
defect.</span></font></span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>------------------------------------------------------------=
-----------------------------------------------------------</span></font>=
</span></p>

</div>

<div style=3D'min-height: 14px'>

<div style=3D'margin-left:.5in'>

<div>

<p class=3DMsoNormal><span class=3Dapple-style-span><font size=3D3 =
color=3Dblack
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:black'>&nbsp;</span></font></span></p>

</div>

</div>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>_______________________________________________</span></font=
></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><span =
class=3Dapple-style-span><font
size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;
color:black'>Pce mailing list</span></font></span></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:or=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:9.0pt;color:black; font-family: Times New Roman; =
font-size: 12px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; font-size: 12px; ">=A0=A0 between the ASBRs in the =
domain."</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Are you suggesting to flood via BGP the intra-domain TE LSPs ? =
In other words, suppose the following =
scenario:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">AS1---AS2---AS3</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">You have a mesh of intra-domain TE LSPs between all ASBRs =
within AS2.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Are you suggesting to flood in AS1 these TE LSPs (and this for =
all other ASes that might be between AS1 and the destination domain) =
?</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
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style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; =
">Thanks.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
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---

From: JP Vasseur <[email-masked]>
Date: olor=3D"black" face=3D"Times New Roman"><SPAN =

"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">JP.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">On Feb 1, 2007, at 12:48 AM, Vijayanand C - TLS, Chennai. =
wrote:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV style=3D"margin-bottom: =
12pt; font-family: Times New Roman; "><FONT size=3D"3" color=3D"black" =
face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt;color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV><DIV><P class=3D"MsoNormal"><SPAN =
class=3D"apple-style-span"><SPAN style=3D"border-spacing: 0px 0px; =
text-align:auto;-khtml-text-decorations-in-effect: =
none;-apple-text-size-adjust: auto; orphans: 2;widows: =
2;word-spacing:0px; font-family: Times New Roman; "><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Are you suggesting that =A0BGP should propagate all =
possible next-hops/As paths and regular path selection process avoided =
for all prefixes which can be destinations of inter-AS TE tunnels =
?</SPAN></SPAN></FONT></SPAN></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">The inter-AS TE link information can be made aware only to =
the ASes on either side of the inter-AS link by the IGP. It may not be =
possible to propagate it beyond that ( or can it =
?).</SPAN></SPAN></FONT></SPAN></P><P class=3D"MsoNormal"><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">So some of the possible AS paths found by BGP( if we =
propagate all next-hops/aspaths in bgp) may not be worth trying for path =
setup (by BRPC) because of violation of some TE =
constraint.</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style- Mon, 5 Feb 2007 06:24:11 -0500
To: "Vijayanand C - TLS, Chennai." <[email-masked]>
Cc: [email-masked]

Hi Vijay,

> towards optimality. The aggspan"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">In our proposal we can pick the paths which are really =
feasible, since we have the inter-AS graph, and then invoke methods like =
BRPC</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Regards</SPAN></SPAN></FONT></SPAN></P><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Vijay</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"black" =
face=3D"Tahoma"><SPAN style=3D"font-size:10.0pt;font-family:Tahoma; =
color:black; font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; ">-----Original =
Message-----</SPAN></SPAN></FONT></SPAN><FONT size=3D"2" color=3D"black" =
face=3D"Tahoma"><SPAN style=3D"font-size:10.0pt;font-family:Tahoma; =
color:black; font-size: 13.3333px; "><BR style=3D"font-family: Tahoma; =
font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" sregation and distribution is limited to =20

Thanks.

JP.

> te-path-01.txt
tyle=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">From:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> JP Vasseur =
[</SPAN><A href=3D"mailto:[email-masked]"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: =
Tahoma; font-size: 13.3333px; -khtml-text-decorations-in-effect: =
underline; ">mailto:[email-masked]</SPAN></SPAN></A><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; ">] </SPAN></SPAN><BR style=3D"font-family: Tahoma; =
font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">Sent:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> Thursday, =
February 01, 2007 1:19 AM</SPAN></SPAN><BR style=3D"font-family: Tahoma; =
font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">To:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> Vijayanand C - =
TLS, Chennai.</SPAN></SPAN><BR style=3D"font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"apple-style-span"><B style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; "><SPAN =
style=3D"font-weight:bold; font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; ">Cc:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> </SPAN><A href=3D"mailto:[email-masked]"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: =
Tahoma; font-size: 13.3333px; -khtml-text-decorations-in-effect: =
underline; ">[email-masked]</SPAN></SPAN></A></SPAN><BR =
style=3D"font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"apple-style-span"><B style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; ">Subject:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> Re: [Pce] RE: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt</SPAN></SPAN></SPA=
N></FONT></P><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">Hi,</SPAN></SPAN></FONT></SPAN></P><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.> Hi,

> received this email 0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">On Jan 25, 2007, at 9:32 AM, =
Vijayanand C - TLS, Chennai. =
wrote:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"margin-left:.5in;margin-bottom:12.0pt"><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV style=3D"min-height: =
14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">Hello =
all,</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">We have submitted the following I-D, please send in =
your</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; =
">comments/suggestions</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">* speaking as a technical =
contributor *</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Romanin error please delete it and notify the sender =20=

<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">Hi Vijay,<DIV><BR><DIV><DIV>On =
Feb 5, 2007, at 6:05 AM, Vijayanand C - TLS, Chennai. wrote:</DIV><BR =
class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 16px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><P class=3D"MsoNormal"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN style=3D"font-size: =
10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, 128); font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"color: rgb(0, 0, =
128); font-family: Arial; font-size: 13.3333px; =
">JP,</SPAN></SPAN></FONT></P><DIV><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN style=3D"font-size: =
10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, 128); font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"color: rgb(0, 0, =
128); font-family: Arial; font-size: 13.3333px; =
">=A0</SPAN></SPAN></FONT><BR class=3D"khtml-block-placeholder"></DIV><DIV=
 style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt"><DIV><DIV><DIV><P class=3D"MsoNormal"><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">We mean that those inter-ASBR TE LSPs which are permitted =
by policy/scaling configuration to be propagated outside can be =
propogated to PCEs in neighbouring ASes by BGP.This information is not =
flooded to all BGP speakers of neighbouring ASes but only to speakers =
which are on PCEs or which propogate them to PCEs ( which support the =
new AFI/SAFI).</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0These LSPs may be a sub-set of TE LSPs specifically =
provisioned for carrying inter-AS TE traffic and may be a full mesh. If =
all the ASes support such a mechanism then the itner-AS TE path can be =
calculated using the inter-AS graph of such LSPs and inter-AS =
links.</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><FONT size=3D"3" =
color=3D"black" face=3D"Helvetica"><SPAN =
style=3D"font-size:12.0pt;font-family:Helvetica;color:black">=A0</SPAN></F=
ONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><FONT =
size=3D"3" face=3D"Times New Roman">"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0 =A0In [BRPC], a method to optimally compute a =
inter-domain TE=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 path for MPLS and GMPS LSPs using the PCE =
architecture detailed in=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 [PCE_ARCH] is described. However the method =
described requires the=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 list of Autonomous systems or domains to be =
determined apriori.=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 Determining the list of ASes/domains to be =
traversed to reach a=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 destination, satisfying the TE constraints is =
non-trivial. It=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 requires knowledge of the inter-AS =
connectivity and the TE=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 characteristics of the inter-AS links along =
with the knowledge of=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0<SPAN style=3D"font-size: 12.0pt; =
font-family: Times New Roman; "></SPAN><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0</SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">Then =
I've got a=A0</SPAN><B style=3D"font-family: Times New Roman; =
font-weight: bold; "><SPAN style=3D"font-weight:bold; font-family: Times =
New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; font-weight: bold; ">much</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">=A0major concern then. Back to when the inter-domain TE discussion =
started (a few years back), several potential candidates have been =
investigated including the TE aggregation technique that you propose and =
that has been excluded for a=A0</SPAN><B style=3D"font-family: Times New =
Roman; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; font-weight: bold; =
">number</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0of reasons (see also RFC4105 =
and RFC4216). Thus we proposed two techniques: per-domain and the PCE =
(where no aggregated TE data is leaked between domains !). You may want =
to refer to the lists archives for details but TE aggregation has been =
rejected, this is precisely why we=A0developed=A0PCE-based computation =
for inter-domain TE.=A0</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT =
size=3D"3" face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">I =
certainly do not want to re-open the debate for the Nth time, but just =
consider that in your proposal you would not have to flood just one TE =
LSP per pair of ASBR but one TE LSP per attribute per pair of ASBRs =
(combining affinity, CTs, metric, ... ) and for all domains + this would =
of course be dynamic (based on the TE LSP when they get rerouted because =
of failures, reoptimization, ...).</SPAN></SPAN></FONT></P></DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><BR =
style=3D"font-family: Times New Roman; "><BR style=3D"font-family: Times =
New Roman; "></SPAN></FONT></P><P class=3D"MsoNormal"><B =
style=3D"font-family: Times New Roman; font-weight: bold; "><I =
style=3D"font-family: Times New Roman; font-style: italic; font-weight: =
bold; "><FONT size=3D"2" color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold; =
font-style:italic; color: rgb(0, 0, 128); font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; font-style: italic; font-weight: bold; =
">[[Vijay ]] I ll go through the arguments in the mailing list archive, =
thanks for the pointer. =A0We are not suggesting this as a solution =
always, but use it wherever possible since it is a step towards =
optimality. The aggregation and distribution is limited to the PCEs, and =
this information is not flooded to the rest of the =
network.</SPAN></SPAN></FONT></I></B></P></DIV></DIV></DIV></DIV></SPAN></=
BLOCKQUOTE><DIV>I understand, but still, the solution requires to set up =
N meshes of TE LSPs between all ASBRs (there are many deployment where =
the TE LSPs are not deployed between the ASBRs but a set of P routers) =
where N may be l=A0 the available paths within each of the =
ASes/domains. BGP contains=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P=
 class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 information on the list of ASes to be =
traversed to reach a=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 destination, however BGP route selection and =
decision process=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 truncates most of the feasible paths, and it =
also does not carry=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 the TE characteristics of the inter-AS links =
and path availability=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 within a domain. =
=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">What does prevent you from =
relying on BGP to provide you all possible paths =
toward=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">a specific destination skipping the regular path =
selection process for specific routes =
(see</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Romaarge depending on the set of attributes in use. Note =
that the attributes of these TE LSPs are dynamic (bandwidth, metric =
(dependency with the path), ...=A0</DIV><DIV>Furthermore this is not =
compliant with RFC4216 and RFC4105.</DIV><DIV>All the arguments that =
have been discussed on the mailing list still applies here: also think =
of the mechanisms that is required to ensure a quick feed-back mechanism =
between the Inter-ASBR TE LSP states announced=A0through BGP to the =
various domains and the path computation process during a burst of =
requests.</DIV><BR><BLOCKQUOTE type=3D"cite"><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 16px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><DIV style=3D"border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt"><DIV><DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN style=3D"border-spacing: 0px =
0px;text-align:auto;-khtml-text-decorations-in-effect: none; =
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px; =
color: rgb(0, 0, 128); font-family: Arial; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; ">=A0</SPAN></SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">But, this kind of itner-ASBR LSP propogation may not be =
always possible because of policy and scaling constraints. In such =
situations we have only the ASes and their inter-AS links in the form of =
an inter-AS graph and we can only find the =91possible=92 AS paths after =
eliminating the paths through inter-AS links which are not feasible and =
then use methods like BRPC to complete the path =
setup.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><FONT size=3D"3" =
face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">But =
in this case, it is probably not worth the work: you do not have the =
'possible' AS since you do not have any information about the resource =
available within each AS.</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT =
size=3D"3" color=3D"navy" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:navy; color: rgb(0, 0, 128); =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Times New Roman; =
">=A0</SPAN></SPAN></FONT><BR class=3D"khtml-block-placeholder"></DIV><P =
class=3D"MsoNormal"><B style=3D"font-family: Times New Roman; =
font-weight: bold; "><I style=3D"font-family: Times New Roman; =
font-style: italic; font-weight: bold; "><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold; =
font-style:italic; color: rgb(0, 0, 128); font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 12n; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">proposals made in the past) and then use BRPC as =
currently specified? The Inter-AS =
TE</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">link could easily be obtained via the IGP with minor =
additions.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">This is in my opinion a =
fundamental question that must first be addressed =
before=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">moving =
forward.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">Thanks.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">JP.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"margin-left:.5in;margin-bottom:12.0pt"><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV style=3D"min-height: =
14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New8); font-family: =
Arial; font-size: 13.3333px; font-style: italic; font-weight: bold; =
">[[Vijay ]] But is it not better than trying all possible ASpaths =
towards a destination. In this method we can certainly eliminate many =
<BR></SPAN></SPAN></FONT></I></B></P></DIV></DIV></DIV></DIV></DIV></SPAN>=
</BLOCKQUOTE>Why "many" ? That depends on many factors .. that may be a =
low as 0 if the inter-AS TE links are all acceptable for a set of =
constraints.<BR><BLOCKQUOTE type=3D"cite"><SPAN class=3D"Apple-style-span"=
 style=3D"border-collapse: separate; border-spacing: 0px 0px; color: =
rgb(0, 0, 0); font-family: Helvetica; font-size: 16px; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><DIV style=3D"border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt"><DIV><DIV><DIV><P class=3D"MsoNormal"><B =
style=3D"font-family: Times New Roman; font-weight: bold; "><I =
style=3D"font-family: Times New Roman; font-style: italic; font-weight: =
bold; "><FONT size=3D"2" color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold; =
font-style:italic; color: rgb(0, 0, 128); font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; font-style: italic; font-weight: bold; ">of =
the AS paths where the inter-AS link cannot support the path. This may =
also be useful for finding backup paths since the inter-AS graph is =
known.</SPAN></SPAN></FONT></I></B></P></DIV></DIV></DIV></DIV></DIV></SPA=
N></BLOCKQUOTE>Thanks.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>JP.<BR><BLOCKQUOTE =
type=3D"cite"><SPAN class=3D"Apple-style-span" style=3D"border-collapse: =
separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 16px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: =
0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV =
class=3D"Section1"><DIV style=3D"border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt"><DIV><DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; ">Hope =
this helps.</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT size=3D"3" =
face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">Thanks.</SPAN></SPAN></FONT></P></DIV><DIV><DIV><FONT size=3D"3" =
face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">JP.</SPAN></SPAN></FONT></P></DIV><P class=3D"MsoNormal"><FONT =
size=3D"3" face=3D"Times New Roman"><SPAN style=3D"font-size: 12.0pt; =
font-family: Times New Roman; "><BR style=3D"font-family: Times New =
Roman; "><BR style=3D"font-family: Times New Roman; =
">< Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">Regards</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">Vijay</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">-----Original =
Message-----</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">From: </SPAN><A =
href=3D"mailto:[email-masked]"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">[email-masked]</SPAN></SPAN></A><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; "> =
[</SPAN></SPAN></FONT></SPAN><FONT color=3D"black"><SPAN =
style=3D"color:black; font-family: Times New Roman; "><A =
href=3D"mailto:[email-masked]"><SPAN =
class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">mailto:[email-masked]</SPAN></SPAN></SPAN></SPAN></A><SPAN =
class=3D"apple-style-span"><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">]=A0</SPAN></SPAN></SPAN></FONT></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">Sent: Tuesday, January 23, 2007 2:20 =
AM</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"fon/SPAN></FONT></P><DIV><DIV><DIV><SPAN class=3D"apple-style-span"><FONT =
size=3D"2" color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN style=3D"border-spacing: 0px =
0px;text-align:auto;-khtml-text-decorations-in-effect: none; =
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px; =
color: rgb(0, 0, 128); font-family: Arial; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 128); font-family: =
Arial; font-size: 13.3333px; ">=A0</SPAN></SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Regards</SPAN></SPAN></FONT></SPAN></P><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Vijay</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV =
style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt"><P class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT =
size=3D"2" color=3D"black" face=3D"Tahoma"><SPAN =
style=3D"font-size:10.0pt;font-family:Tahoma;color:black; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; ">-----Original =
Message-----</SPAN></SPAN></FONT></SPAN><FONT size=3D"2" color=3D"black" =
face=3D"Tahoma"><SPAN =
style=3D"font-size:10.0pt;font-family:Tahoma;color:black; font-size: =
13.3333px; "><BR style=3D"font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"apple-style-span"><B style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; "><SPAN =
style=3D"font-weight:bold; font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; ">From:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> JP Vasseur [</SPAN><A =
href=3D"mailto:[email-masked]"><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Tahoma; font-size: =
13.3333px; -khtml-text-decorations-in-effect: underline; =
">mailto:[email-masked]</SPAN></A><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; ">] =
</SPAN></SPAN><BR style=3D"font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"apple-style-span"><B style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; "><SPAN =
style=3D"font-weight:bold; font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; ">Sent:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.33t-family: =
Times New Roman; ">To: </SPAN></SPAN></FONT></SPAN><FONT =
color=3D"black"><SPAN style=3D"color: black; font-family: Times New =
Roman; "><A href=3D"mailto:[email-masked]"><SPAN =
class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">[email-masked]</SPAN></SPAN></SPAN></SPAN></A></SPAN></FONT></P><=
/DIV><DIV><P class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: =
Times New Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; =
color:black; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">Subject: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt=A0</SPAN></SPAN></=
FONT></SPAN></P></DIV><DIV style=3D"min-height: 14px"><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">A New Internet-Draft is =
available from the on-line =
Internet-Drafts=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">directories.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
 Title=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 : A BGP based =
method to compute inter-AS =
Traffic</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =33px; "> Saturday, February 03, 2007 4:05 AM</SPAN></SPAN><BR =
style=3D"font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"apple-style-span"><B style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; ">To:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> Vijayanand C - TLS, Chennai.</SPAN></SPAN><BR =
style=3D"font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"apple-style-span"><B style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; ">Cc:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> </SPAN><A href=3D"mailto:[email-masked]"><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: =
Tahoma; font-size: 13.3333px; -khtml-text-decorations-in-effect: =
underline; ">[email-masked]</SPAN></A></SPAN><BR style=3D"font-family: =
Tahoma; font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">Subject:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> Re: [Pce] RE: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt</SPAN></SPAN></SPA=
N></FONT></P><DIV><DIV><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><P class=3D"MsoNormal"><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; =
">Hi,</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Let me first try to make sure of something here. When you write =
"</SPAN></SPAN></FONT></SPAN><SPAN class=3D"apple-style-span"><FONT =
size=3D"1" color=3D"black"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">The PCE shall learn the =
TE=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"1" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:9.0pt;color:black; font-family: Times New Roman; =
font-size: 12px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; font-size: 12px; ">=A0=A0 attributes of the inter-AS TE =
links and the TE tunnels that =
exist=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"1" =
col
Times New Roman; ">engineering Label Switched Paths with =
PCE</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Author(s)=A0=A0=A0=A0=
=A0=A0=A0=A0=A0 : C. Vijayanand, S. =
Bhattacharya</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
 Filename=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; =
">draft-vijay-somen-pce-bgp-interas-te-path-01.txt</SPAN></SPAN></FONT></S=
PAN></P></DIV><DIV><P class=3D"MsoNormal" style=3D"margin-left:.5in; =
font-family: Times New Roman; "><SPAN class=3D"apple-style-span"><FONT =
size=3D"3" color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt; color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Pages=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0 : 26</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
 Date=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 : =
2007-1-22</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"margin-left:.5in;min-height: 14px"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0</SPAN></SPAN></FONT><=
/SPAN><BR class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">The ability to compute an =
optimal path for setting up =
Traffic=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 engineering Label =
Switched Paths spanning multiple =
autonomous=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 syor=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:9.0pt;color:black; font-family: Times New Roman; =
font-size: 12px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; font-size: 12px; ">=A0=A0 between the ASBRs in the =
domain."</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Are you suggesting to flood via BGP the intra-domain TE LSPs ? =
In other words, suppose the following =
scenario:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">AS1---AS2---AS3</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">You have a mesh of intra-domain TE LSPs between all ASBRs =
within AS2.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Are you suggesting to flood in AS1 these TE LSPs (and this for =
all other ASes that might be between AS1 and the destination domain) =
?</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; =
">Thanks.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
cstems managed by =
different operators has been a key requirement =
in=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 MPLS and GMPLS networks. This document =
specifies a method of=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 computing inter-AS paths =
consisting of a list of ASes to =
be=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 traversed and a list of TE-Tunnels to be =
traversed in each AS. The=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 method described here =
uses BGP speakers in the PCEs of each AS =
to=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 distribute the inter-AS connectivity =
information and the =
TE-Tunnels=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 in each AS to its =
neighbors to facilitate the construction of =
an=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 inter-AS topology graph which can be used for =
computing inter-AS</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0 =A0 =
paths.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV style=3D"min-height: =
14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></olor=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">JP.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">On Feb 1, 2007, at 12:48 AM, Vijayanand C - TLS, Chennai. =
wrote:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV style=3D"margin-bottom: =
12pt; font-family: Times New Roman; "><FONT size=3D"3" color=3D"black" =
face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt;color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV><DIV><P class=3D"MsoNormal"><SPAN =
class=3D"apple-style-span"><SPAN style=3D"border-spacing: 0px 0px; =
text-align:auto;-khtml-text-decorations-in-effect: =
none;-apple-text-size-adjust: auto; orphans: 2;widows: =
2;word-spacing:0px; font-family: Times New Roman; "><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Are you suggesting that =A0BGP should propagate all =
possible next-hops/As paths and regular path selection process avoided =
for all prefixes which can be destinations of inter-AS TE tunnels =
?</SPAN></SPAN></FONT></SPAN></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">The inter-AS TE link information can be made aware only to =
the ASes on either side of the inter-AS link by the IGP. It may not be =
possible to propagate it beyond that ( or can it =
?).</SPAN></SPAN></FONT></SPAN></P><P class=3D"MsoNormal"><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">So some of the possible AS paths found by BGP( if we =
propagate all next-hops/aspaths in bgp) may not be worth trying for path =
setup (by BRPC) because of violation of some TE =
constraint.</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">A URL for this Internet-Draft =
is:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><FONT =
size=3D"3" color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><A =
href=3D"http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-inte=
ras-te"><SPAN class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">http://www.ietf.org/internet-drafts/draft-vijay-somen-pce-bgp-interas-te=
</SPAN></SPAN></SPAN></SPAN></A></SPAN></FONT></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">-path-01.txt</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">DISCLAIMER:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">------------------------------------------------------------------------=
-----------------------------------------------</SPAN></SPAN></FONT></SPAN=
></P></DIV><DIV style=3D"min-height: 14px"><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPspan"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">In our proposal we can pick the paths which are really =
feasible, since we have the inter-AS graph, and then invoke methods like =
BRPC</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Regards</SPAN></SPAN></FONT></SPAN></P><P =
class=3D"MsoNormal"><SPAN class=3D"apple-style-span"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">Vijay</SPAN></SPAN></FONT></SPAN></P><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"navy" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:navy; color: rgb(0, 0, =
128); font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 128); font-family: Arial; font-size: =
13.3333px; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"2" color=3D"black" =
face=3D"Tahoma"><SPAN style=3D"font-size:10.0pt;font-family:Tahoma; =
color:black; font-size: 13.3333px; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; ">-----Original =
Message-----</SPAN></SPAN></FONT></SPAN><FONT size=3D"2" color=3D"black" =
face=3D"Tahoma"><SPAN style=3D"font-size:10.0pt;font-family:Tahoma; =
color:black; font-size: 13.3333px; "><BR style=3D"font-family: Tahoma; =
font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" sAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">The contents of this e-mail and =
any attachment(s) are confidential and intended for the named =
recipient(s) only.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">It shall not attach any =
liability on the originator or HCL or its affiliates. Any views or =
opinions presented in=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">this email are solely those of =
the author and may not necessarily reflect the opinions of HCL or its =
affiliates.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">Any form of reproduction, =
dissemination, copying, disclosure, modification, distribution and / or =
publication of=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">this message without the prior =
written consent of the author of this e-mail is strictly prohibited. If =
you have=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">received this email in error =
please delete it and notify the sender immediately. Before opening any =
mail and=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">attachments please check them =
for viruses and defect.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=tyle=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">From:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> JP Vasseur =
[</SPAN><A href=3D"mailto:[email-masked]"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: =
Tahoma; font-size: 13.3333px; -khtml-text-decorations-in-effect: =
underline; ">mailto:[email-masked]</SPAN></SPAN></A><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; ">] </SPAN></SPAN><BR style=3D"font-family: Tahoma; =
font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">Sent:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> Thursday, =
February 01, 2007 1:19 AM</SPAN></SPAN><BR style=3D"font-family: Tahoma; =
font-size: 13.3333px; "><SPAN class=3D"apple-style-span"><B =
style=3D"font-family: Tahoma; font-size: 13.3333px; font-weight: bold; =
"><SPAN style=3D"font-weight:bold; font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; =
">To:</SPAN></SPAN></B><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Tahoma; font-size: 13.3333px; "> Vijayanand C - =
TLS, Chennai.</SPAN></SPAN><BR style=3D"font-family: Tahoma; font-size: =
13.3333px; "><SPAN class=3D"apple-style-span"><B style=3D"font-family: =
Tahoma; font-size: 13.3333px; font-weight: bold; "><SPAN =
style=3D"font-weight:bold; font-family: Tahoma; font-size: 13.3333px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Tahoma; =
font-size: 13.3333px; font-weight: bold; ">Cc:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> </SPAN><A href=3D"mailto:[email-masked]"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: =
Tahoma; font-size: 13.3333px; -khtml-text-decorations-in-effect: =
underline; ">[email-masked]</SPAN></SPAN></A></SPAN><BR =
style=3D"font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"apple-style-span"><B style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; "><SPAN style=3D"font-weight:bold; =
font-family: Tahoma; font-size: 13.3333px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; font-weight: bold; ">Subject:</SPAN></SPAN></B><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Tahoma; font-size: =
13.3333px; "> Re: [Pce] RE: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt</SPAN></SPAN></SPA=
N></FONT></P><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">Hi,</SPAN></SPAN></FONT></SPAN></P><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">------------------------------------------------------------------------=
-----------------------------------------------</SPAN></SPAN></FONT></SPAN=
></P></DIV><DIV style=3D"min-height: 14px"><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">_______________________________________________</SPAN></SPAN></FONT></SP=
AN></P></DIV><DIV><P class=3D"MsoNormal" style=3D"margin-left:.5in; =
font-family: Times New Roman; "><SPAN class=3D"apple-style-span"><FONT =
size=3D"3" color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt; color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">Pce mailing list</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><FONT size=3D"3" color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><A href=3D"mailto:[email-masked]"><SPAN =
class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">[email-masked]</SPAN></SPAN></SPAN></SPAN></A></SPAN></FONT></P></DI=
V><DIV><P class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: =
Times New Roman; "><FONT size=3D"3" color=3D"black" face=3D"Times New =
Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: Times =
New Roman; "><A href=3D"https://www1.ietf.org/mailman/listinfo/pce"><SPAN =
class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">https://www1.ietf.org/mailman/listinfo/pce</SPAN></SPAN></SPAN></SPAN></=
A></SPAN></FONT></P></DIV></DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV></DIV><DIV =
style=3D"margin-bottom: 12pt; font-family: Times New Roman; "><FONT =
size=3D"3" color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt;color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN sty0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">On Jan 25, 2007, at 9:32 AM, =
Vijayanand C - TLS, Chennai. =
wrote:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"margin-left:.5in;margin-bottom:12.0pt"><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV style=3D"min-height: =
14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">Hello =
all,</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">We have submitted the following I-D, please send in =
your</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; =
">comments/suggestions</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">* speaking as a technical =
contributor *</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Romanle=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV></DIV><P =
class=3D"MsoNormal"><FONT size=3D"3" color=3D"black" =
face=3D"Helvetica"><SPAN =
style=3D"font-size:12.0pt;font-family:Helvetica;color:black"><BR><BR></SPA=
N></FONT></P></DIV><DIV><FONT size=3D"3" face=3D"Times New Roman"><SPAN =
style=3D"font-size: 12.0pt; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">=A0</SPAN></SPAN></FONT><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><BR =
class=3D"Apple-interchange-newline"></SPAN></BLOCKQUOTE></DIV><BR></DIV></=
BODY></HTML>=

--Apple-Mail-177--906076241--

--===============2006108600==--

"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0 =A0In [BRPC], a method to optimally compute a =
inter-domain TE=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 path for MPLS and GMPS LSPs using the PCE =
architecture detailed in=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 [PCE_ARCH] is described. However the method =
described requires the=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 list of Autonomous systems or domains to be =
determined apriori.=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 Determining the list of ASes/domains to be =
traversed to reach a=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 destination, satisfying the TE constraints is =
non-trivial. It=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 requires knowledge of the inter-AS =
connectivity and the TE=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 characteristics of the inter-AS links along =
with the knowledge of=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 the available paths within each of the =
ASes/domains. BGP contains=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P=
 class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 information on the list of ASes to be =
traversed to reach a=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 destination, however BGP route selection and =
decision process=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 truncates most of the feasible paths, and it =
also does not carry=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 the TE characteristics of the inter-AS links =
and path availability=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"1" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:9.0pt; color:black; =
font-family: Times New Roman; font-size: 12px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
font-size: 12px; ">=A0=A0 within a domain. =
=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">What does prevent you from =
relying on BGP to provide you all possible paths =
toward=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">a specific destination skipping the regular path =
selection process for specific routes =
(see</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">proposals made in the past) and then use BRPC as =
currently specified? The Inter-AS =
TE</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">link could easily be obtained via the IGP with minor =
additions.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">This is in my opinion a =
fundamental question that must first be addressed =
before=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">moving =
forward.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">Thanks.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">JP.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"margin-left:.5in;margin-bottom:12.0pt"><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV><DIV style=3D"min-height: =
14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">Regards</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal"=
 style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">Vijay</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">-----Original =
Message-----</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">From: </SPAN><A =
href=3D"mailto:[email-masked]"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">[email-masked]</SPAN></SPAN></A><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; "> =
[</SPAN></SPAN></FONT></SPAN><FONT color=3D"black"><SPAN =
style=3D"color:black; font-family: Times New Roman; "><A =
href=3D"mailto:[email-masked]"><SPAN =
class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">mailto:[email-masked]</SPAN></SPAN></SPAN></SPAN></A><SPAN =
class=3D"apple-style-span"><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">]=A0</SPAN></SPAN></SPAN></FONT></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">Sent: Tuesday, January 23, 2007 2:20 =
AM</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">To: </SPAN></SPAN></FONT></SPAN><FONT =
color=3D"black"><SPAN style=3D"color: black; font-family: Times New =
Roman; "><A href=3D"mailto:[email-masked]"><SPAN =
class=3D"apple-style-span"><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN =
style=3D"-khtml-text-decorations-in-effect: underline; color: rgb(0, 0, =
255); font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"color: rgb(0, 0, 255); font-family: Times New Roman; =
-khtml-text-decorations-in-effect: underline; =
">[email-masked]</SPAN></SPAN></SPAN></SPAN></A></SPAN></FONT></P><=
/DIV><DIV><P class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: =
Times New Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" =
color=3D"black" face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; =
color:black; font-family: Times New Roman; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Times New Roman; =
">Subject: I-D =
ACTION:draft-vijay-somen-pce-bgp-interas-te-path-01.txt=A0</SPAN></SPAN></=
FONT></SPAN></P></DIV><DIV style=3D"min-height: 14px"><DIV =
style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">A New Internet-Draft is =
available from the on-line =
Internet-Drafts=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; =
">directories.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV =
style=3D"min-height: 14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN=
 class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times=
 New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
 Title=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 : A BGP based =
method to compute inter-AS =
Traffic</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">engineering Label Switched Paths with =
PCE</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Author(s)=A0=A0=A0=A0=
=A0=A0=A0=A0=A0 : C. Vijayanand, S. =
Bhattacharya</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
 Filename=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
:</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; =
">draft-vijay-somen-pce-bgp-interas-te-path-01.txt</SPAN></SPAN></FONT></S=
PAN></P></DIV><DIV><P class=3D"MsoNormal" style=3D"margin-left:.5in; =
font-family: Times New Roman; "><SPAN class=3D"apple-style-span"><FONT =
size=3D"3" color=3D"black" face=3D"Times New Roman"><SPAN =
style=3D"font-size:12.0pt; color:black; font-family: Times New Roman; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Times New =
Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Pages=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0 : 26</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
 Date=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 : =
2007-1-22</SPAN></SPAN></FONT></SPAN></P></DIV><DIV =
style=3D"margin-left:.5in;min-height: 14px"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0</SPAN></SPAN></FONT><=
/SPAN><BR class=3D"khtml-block-placeholder"></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">The ability to compute an =
optimal path for setting up =
Traffic=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 engineering Label =
Switched Paths spanning multiple =
autonomous=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 systems managed by =
different operators has been a key requirement =
in=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 MPLS and GMPLS networks. This document =
specifies a method of=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 computing inter-AS paths =
consisting of a list of ASes to =
be=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 traversed and a list of TE-Tunnels to be =
traversed in each AS. The=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 method described here =
uses BGP speakers in the PCEs of each AS =
to=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 distribute the inter-AS connectivity =
information and the =
TE-Tunnels=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0=A0 in each AS to its =
neighbors to facilitate the construction of =
an=A0</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P class=3D"MsoNormal" =
style=3D"margin-left:.5in; font-family: Times New Roman; "><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt; color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0=A0 inter-AS topology graph which can be used for =
computing inter-AS</SPAN></SPAN></FONT></SPAN></P></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">=A0 =A0 =
paths.</SPAN></SPAN></FONT></SPAN></P></DIV><DIV style=3D"min-height: =
14px"><DIV style=3D"margin-left:.5in"><DIV><DIV><SPAN =
class=3D"apple-style-span"><FONT size=3D"3" color=3D"black" face=3D"Times =
New Roman"><SPAN style=3D"font-size:12.0pt;color:black; font-family: =
Times New Roman; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Times New Roman; ">=A0</SPAN></SPAN></FONT></SPAN><BR =
class=3D"khtml-block-placeholder"></DIV></DIV></DIV></DIV><DIV><P =
class=3D"MsoNormal" style=3D"margin-left:.5in; font-family: Times New =
Roman; "><SPAN class=3D"apple-style-span"><FONT size=3D"3" color=3D"black"=
 face=3D"Times New Roman"><SPAN style=3D"font-size:12.0pt; color:black; =
font-family: Times New Roman; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Times New Roman; ">A URL for this Internet-Draft =
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