Subject: List of the Current BGP Documents
From: Yakov Rekhter <[email-masked]>
To: [email-masked]
Date: Tue, 21 Nov 2000 08:54:07 -0800

fyi
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Date:    Tue, 21 Nov 2000 05:55:18 -0500
From:    [email-masked]
To:      IETF-Announce: ;
Subject: I-D ACTION:draft-chen-bgp-reference-00.txt

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

	Title		: List of the Current BGP Documents
	Author(s)	: E. Chen, Y. Rekhter
	Filename	: draft-chen-bgp-reference-00.txt
	Pages		: 8
	Date		: 20-Nov-00
	
This document lists the most recent RFCs and Internet Drafts that are
related to the BGP protocol and its applications.  It is expected
that this document will be updated on a on-going basis.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-chen-bgp-reference-00.txt

Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-chen-bgp-reference-00.txt".

A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html 
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to:
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In the body type:
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From: "Shah, Himanshu" <[email-masked]>
To: "[email-masked]'" <[email-masked]>, [email-masked]
Subject: RE: bgp-igp doubts
Date: Mon, 20 Nov 2000 09:51:40 -0500
Sender: [email-masked]

question 1)

In Cisco's language, use "network" command to import routes into the
BGP. As and when the IGP routes are placed/removed in/from the routing
table, 
BGP will advertise/withdraw these routes to its peers. Use this command in
both BGP routers A and C in AS200. You can also use "redistribute" command
to
import route from your IGP to BGP. Since this is one way leak, it would not
destabilize your AS.

Your router should have similar features to do the same.

question 2)

If all your routers within an AS speaks IBGP and they import (aka cisco's
"network")
directly connected networks, your IBGP+EBGP router (e.g. A and C) will know
of all
networks within your AS via IBGP peers. A couple of important things to
remember here is 
IBGP requires to be of full mesh of peers and "network" command is necessary
to 
import all (including stub) networks.

Himanshu
Tenor Networks
Acton, Mass

-----Original Message-----
From: [email-masked] [mailto:[email-masked]]
Sent: Saturday, November 18, 2000 5:08 AM
To: [email-masked]
Subject: bgp-igp doubts

BGP-IGP interaction

doubt 1:

                                                              ibgp between
a,c
 
e----------------------------A----------B-----------C-----------------------
---d
                        ebgp                           ospf         ospf
bgp

               As100                                            As200
As300          

As 200   is having three routers A,B,C 
a and c are multiprotocol router.

As100  is having  one router   e
As300  is having one router    d

Inside our AS 200 we are running igp (we have igp domain ex. rip, ospf etc)
and have 20 NLRI. We want to advertise our NLRI to AS100 and As 200 via bgp.

could you pl. explan how router A and C  should take igp domain information
and  advertise  NLRI without creating instability inside the AS. 

doubt 2;

In rfc-1772, a.2.4 pervassive bgp example is given. 

It says if all routers in AS are bgp speaker, there is no need to have any
interaction between bgp and igp.  I am unabe to visualise pervassive bgp.
coud you pl. explain with diagram  how the routing will take place.

If possibe pl mentioned the reference material.

bye,
subodh..  

From: [email-masked]
Date: Mon, 20 Nov 2000 20:19:08 +0900
Subject: (Reply) Re: (Reply) Re: bgp-igp doubts
To: [email-masked]
Sender: [email-masked]

oops!
when b advertises to a, a will not process, till it knows 
route to c thru some means (IGP/static) so, a cant reach d.

BTW, pl. put the questions to group.

--Siva S Kotthapalli

[email-masked] wrote:
> 
> q2: if b is also capable of speaking bgp, the rule says to run ibgp for router inside AS which does not advertise next hop as a self .  so how router A will be abe to reach
> router C fr destinatin d.
> 
> q1. check the  documentation of ur router.
>    u'll find some means of redistributing the routing info from IGP to
> BGP
> 
> q2. in ur diagram, if router b is also capable of speaking bgp then u
> dont need any igp.
> 
> hope this helps
> 
> --Siva S Kotthapalli
> 
> [email-masked] wrote:
> >
> > BGP-IGP interaction
> >
> > doubt 1:
> >
> >                                                               ibgp between a,c
> >                   e----------------------------A----------B-----------C--------------------------d
> >                         ebgp                           ospf         ospf                           bgp
> >
> >                As100                                            As200                                As300
> >
> > As 200   is having three routers A,B,C
> > a and c are multiprotocol router.
> >
> > As100  is having  one router   e
> > As300  is having one router    d
> >
> > Inside our AS 200 we are running igp (we have igp domain ex. rip, ospf etc) and have 20 NLRI. We want to advertise our NLRI to AS100 and As 200 via bgp.
> >
> > could you pl. explan how router A and C  should take igp domain information and  advertise  NLRI without creating instability inside the AS.
> >
> > doubt 2;
> >
> > In rfc-1772, a.2.4 pervassive bgp example is given.
> >
> > It says if all routers in AS are bgp speaker, there is no need to have any interaction between bgp and igp.  I am unabe to visualise pervassive bgp.
> > coud you pl. explain with diagram  how the routing will take place.
> >
> > If possibe pl mentioned the reference material.
> >
> > bye,
> > subodh..
> 
> --
> --Siva S Kotthapalli, Infosys India.
> Tel- H: 91-80-6342709 W:91-80-8520261
> /* If you don't have an engineer on your side to balance out the
>    changes made by the other, that's when you have problems.*/

-- 
--Siva S Kotthapalli, Infosys India.
Tel- H: 91-80-6342709 W:91-80-8520261
/* If you don't have an engineer on your side to balance out the 
   changes made by the other, that's when you have problems.*/

Date: Mon, 20 Nov 2000 11:52:48 +0530
From: Siva S Kotthapalli <[email-masked]>
Organization: Lucent INS
To: [email-masked]
Cc: [email-masked]
Subject: Re: bgp-igp doubts
Sender: [email-masked]

q1. check the  documentation of ur router.
   u'll find some means of redistributing the routing info from IGP to
BGP

q2. in ur diagram, if router b is also capable of speaking bgp then u
dont need any igp.

hope this helps

--Siva S Kotthapalli

[email-masked] wrote:
> 
> BGP-IGP interaction
> 
> doubt 1:
> 
>                                                               ibgp between a,c
>                   e----------------------------A----------B-----------C--------------------------d
>                         ebgp                           ospf         ospf                           bgp
> 
>                As100                                            As200                                As300
> 
> As 200   is having three routers A,B,C
> a and c are multiprotocol router.
> 
> As100  is having  one router   e
> As300  is having one router    d
> 
> Inside our AS 200 we are running igp (we have igp domain ex. rip, ospf etc) and have 20 NLRI. We want to advertise our NLRI to AS100 and As 200 via bgp.
> 
> could you pl. explan how router A and C  should take igp domain information and  advertise  NLRI without creating instability inside the AS.
> 
> doubt 2;
> 
> In rfc-1772, a.2.4 pervassive bgp example is given.
> 
> It says if all routers in AS are bgp speaker, there is no need to have any interaction between bgp and igp.  I am unabe to visualise pervassive bgp.
> coud you pl. explain with diagram  how the routing will take place.
> 
> If possibe pl mentioned the reference material.
> 
> bye,
> subodh..

-- 
--Siva S Kotthapalli, Infosys India.
Tel- H: 91-80-6342709 W:91-80-8520261
/* If you don't have an engineer on your side to balance out the 
   changes made by the other, that's when you have problems.*/

From: [email-masked]
Date: Sat, 18 Nov 2000 19:19:15 +0900
Subject: bgp-igp doubts
To: [email-masked]
Sender: [email-masked]

BGP-IGP interaction

doubt 1:

                                                              ibgp between a,c
                  e----------------------------A----------B-----------C--------------------------d
                        ebgp                           ospf         ospf                           bgp

               As100                                            As200                                As300          

As 200   is having three routers A,B,C 
a and c are multiprotocol router.

As100  is having  one router   e
As300  is having one router    d

Inside our AS 200 we are running igp (we have igp domain ex. rip, ospf etc) and have 20 NLRI. We want to advertise our NLRI to AS100 and As 200 via bgp.

could you pl. explan how router A and C  should take igp domain information and  advertise  NLRI without creating instability inside the AS. 

doubt 2;

In rfc-1772, a.2.4 pervassive bgp example is given. 

It says if all routers in AS are bgp speaker, there is no need to have any interaction between bgp and igp.  I am unabe to visualise pervassive bgp.
coud you pl. explain with diagram  how the routing will take place.

If possibe pl mentioned the reference material.

bye,
subodh..  

From: [email-masked]
Date: Sat, 18 Nov 2000 19:08:18 +0900
Subject: bgp-igp doubts
To: [email-masked]
Sender: [email-masked]

BGP-IGP interaction

doubt 1:

                                                              ibgp between a,c
                  e----------------------------A----------B-----------C--------------------------d
                        ebgp                           ospf         ospf                           bgp

               As100                                            As200                                As300          

As 200   is having three routers A,B,C 
a and c are multiprotocol router.

As100  is having  one router   e
As300  is having one router    d

Inside our AS 200 we are running igp (we have igp domain ex. rip, ospf etc) and have 20 NLRI. We want to advertise our NLRI to AS100 and As 200 via bgp.

could you pl. explan how router A and C  should take igp domain information and  advertise  NLRI without creating instability inside the AS. 

doubt 2;

In rfc-1772, a.2.4 pervassive bgp example is given. 

It says if all routers in AS are bgp speaker, there is no need to have any interaction between bgp and igp.  I am unabe to visualise pervassive bgp.
coud you pl. explain with diagram  how the routing will take place.

If possibe pl mentioned the reference material.

bye,
subodh..  

From: Randy Bush <[email-masked]>
To: Yakov Rekhter <[email-masked]>
Cc: [email-masked], [email-masked]
Subject: Re: agenda items
Date: Sat, 11 Nov 2000 20:21:03 -0800
Sender: [email-masked]

> Please submit proposed agenda items for the IDR WG meeting
> in San Diego to me and Sue.

approaches to the possible exhaustion of asns

randy

To: [email-masked]
Cc: [email-masked], [email-masked]
Subject: agenda items
Date: Sat, 11 Nov 2000 16:34:46 -0800
From: Yakov Rekhter <[email-masked]>
Sender: [email-masked]

Folks,

Please submit proposed agenda items for the IDR WG meeting
in San Diego to me and Sue.

Yakov.

Reply-To: <[email-masked]>
From: "James Tsillas" <[email-masked]>
To: "IDR" <[email-masked]>
Subject: EGP Origin type
Date: Mon, 6 Nov 2000 09:07:47 -0500
Importance: Normal
Sender: [email-masked]

Does the EGP origin type refer to routes learned from
_an_ EGP protocol (such as BGP) or does it refer to routes
learned from _the_ EGP protocol (Cisco's EGP). I haven't
been able to find a reference which is clear on this point.

-Jim.

Reply-To: <[email-masked]>
From: "James Tsillas" <[email-masked]>
To: "IDR" <[email-masked]>
Subject: Setting ORIGIN
Date: Thu, 2 Nov 2000 14:10:31 -0500
Importance: Normal
Sender: [email-masked]

Can someone give guidance on how the ORIGIN
attribute should be set? What are the circumstances
when we want to set the attribute to IGP, EGP
or INC. What are the default settings for
redistributed or static routes? Why would we
want to override the defaults?

Also please comment on any difference between
vendors in implementation that you know of.

thanks much,
-Jim.