
From rajeev.koodli@gmail.com  Tue Sep 15 13:09:41 2009
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Subject: [Mobopts] Request to publish draft-irtf-mobopts-mmcastv6-ps-08.txt
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Hi Aaron,

I am following up on a previous request (for version 07).
We received two more Ready to Publish with some comments.
The authors have addressed the comments in version 08. Please see the
formal request below.

Thanks,

-Rajeev


This is a request to publish the Mobopts RG document
draft-irtf-mobopts-mmcastv6-ps-08 as an Informational
RFC.

The draft has undergone several revisions within the RG.
The latest version of the draft (rev 08) includes the changes
and edits that were suggested as part of the the IRSG Reviews by Craig
Partridge,
Andrei Gurtov and Andrew Lachlan.

The original IRSG Review was done on Rev 06 of the I-D.

There are three votes for "Ready to Publish" and one vote for "No Objection".

During the development of this document in the mobopts RG, several
people have thoroughly reviewed the document and the changes have been
incorporated.

The draft revisions, reviews etc. are captured at:

http://trac.tools.ietf.org/group/irtf/trac/ticket/26



On Tue, Jul 14, 2009 at 10:39 AM, Rajeev Koodli<rajeev_koodli@yahoo.com> wrote:
>
>
> Hi Aaron,
>
> This is a request to publish the Mobopts RG document
> draft-irtf-mobopts-mmcastv6-ps-07 as an Informational
> RFC.
>
> The draft has undergone several revisions within the RG.
> The latest version of the draft (rev 07) includes the changes
> and edits that were suggested as part of the the IRSG Review by Craig
> Partridge.
> The IRSG Review was done on Rev 06 of the I-D.
>
> There was one vote for "Ready to Publish" and one vote for "No Objection"
> during the IRSG Poll. (I sought additional votes multiple times, but now it
> is time to progress the document)
>
> During the development of this document in the mobopts RG, several
> people have thoroughly reviewed the document and the changes have been
> incorporated.
>
> The draft revisions, reviews etc are captured at:
>
> http://trac.tools.ietf.org/group/irtf/trac/ticket/26
>
> Thanks,
>
> -Rajeev
>
>
>
>
> _______________________________________________
> Mobopts mailing list
> Mobopts@irtf.org
> http://www.irtf.org/mailman/listinfo/mobopts
>
>

From falk@bbn.com  Tue Sep 15 14:08:28 2009
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Date: Tue, 15 Sep 2009 17:09:13 -0400
From: Aaron Falk <falk@bbn.com>
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Cc: irsg@isi.edu, mobopts@irtf.org
Subject: Re: [Mobopts] Request to publish draft-irtf-mobopts-mmcastv6-ps-08.txt
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Rajeev-

I observe that the current revision is -16, not -08.  See
http://tools.ietf.org/html/draft-irtf-mobopts-location-privacy-solutions. 
Do you want to publish -16?

--aaron

Rajeev Koodli wrote:
> Hi Aaron,
>
> I am following up on a previous request (for version 07).
> We received two more Ready to Publish with some comments.
> The authors have addressed the comments in version 08. Please see the
> formal request below.
>
> Thanks,
>
> -Rajeev
>
>
> This is a request to publish the Mobopts RG document
> draft-irtf-mobopts-mmcastv6-ps-08 as an Informational
> RFC.
>
> The draft has undergone several revisions within the RG.
> The latest version of the draft (rev 08) includes the changes
> and edits that were suggested as part of the the IRSG Reviews by Craig
> Partridge,
> Andrei Gurtov and Andrew Lachlan.
>
> The original IRSG Review was done on Rev 06 of the I-D.
>
> There are three votes for "Ready to Publish" and one vote for "No Objection".
>
> During the development of this document in the mobopts RG, several
> people have thoroughly reviewed the document and the changes have been
> incorporated.
>
> The draft revisions, reviews etc. are captured at:
>
> http://trac.tools.ietf.org/group/irtf/trac/ticket/26
>
>
>
> On Tue, Jul 14, 2009 at 10:39 AM, Rajeev Koodli<rajeev_koodli@yahoo.com> wrote:
>   
>> Hi Aaron,
>>
>> This is a request to publish the Mobopts RG document
>> draft-irtf-mobopts-mmcastv6-ps-07 as an Informational
>> RFC.
>>
>> The draft has undergone several revisions within the RG.
>> The latest version of the draft (rev 07) includes the changes
>> and edits that were suggested as part of the the IRSG Review by Craig
>> Partridge.
>> The IRSG Review was done on Rev 06 of the I-D.
>>
>> There was one vote for "Ready to Publish" and one vote for "No Objection"
>> during the IRSG Poll. (I sought additional votes multiple times, but now it
>> is time to progress the document)
>>
>> During the development of this document in the mobopts RG, several
>> people have thoroughly reviewed the document and the changes have been
>> incorporated.
>>
>> The draft revisions, reviews etc are captured at:
>>
>> http://trac.tools.ietf.org/group/irtf/trac/ticket/26
>>
>> Thanks,
>>
>> -Rajeev
>>
>>
>>
>>
>> _______________________________________________
>> Mobopts mailing list
>> Mobopts@irtf.org
>> http://www.irtf.org/mailman/listinfo/mobopts
>>
>>
>>     
>
>   

From rkoodli@starentnetworks.com  Tue Sep 15 14:22:11 2009
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X-ASG-Orig-Subj: RE: [Mobopts] Request to publishdraft-irtf-mobopts-mmcastv6-ps-08.txt
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From: "Koodli, Rajeev" <rkoodli@starentnetworks.com>
To: "Aaron Falk" <falk@bbn.com>
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Cc: irsg@isi.edu, mobopts@irtf.org
Subject: Re: [Mobopts] Request to publishdraft-irtf-mobopts-mmcastv6-ps-08.txt
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Hi Aaron,

You are looking at a different ID - version 16 is for the location
privacy draft (which has finished IESG review, but is waiting for an AD
write-up!)

Thanks,

-Rajeev
=20

> -----Original Message-----
> From: mobopts-bounces@irtf.org=20
> [mailto:mobopts-bounces@irtf.org] On Behalf Of Aaron Falk
> Sent: Tuesday, September 15, 2009 2:09 PM
> To: Rajeev Koodli
> Cc: irsg@isi.edu; mobopts@irtf.org
> Subject: Re: [Mobopts] Request to=20
> publishdraft-irtf-mobopts-mmcastv6-ps-08.txt
>=20
> Rajeev-
>=20
> I observe that the current revision is -16, not -08.  See=20
> http://tools.ietf.org/html/draft-irtf-mobopts-location-privacy
> -solutions.=20
> Do you want to publish -16?
>=20
> --aaron
>=20
> Rajeev Koodli wrote:
> > Hi Aaron,
> >
> > I am following up on a previous request (for version 07).
> > We received two more Ready to Publish with some comments.
> > The authors have addressed the comments in version 08.=20
> Please see the=20
> > formal request below.
> >
> > Thanks,
> >
> > -Rajeev
> >
> >
> > This is a request to publish the Mobopts RG document
> > draft-irtf-mobopts-mmcastv6-ps-08 as an Informational RFC.
> >
> > The draft has undergone several revisions within the RG.
> > The latest version of the draft (rev 08) includes the changes and=20
> > edits that were suggested as part of the the IRSG Reviews by Craig=20
> > Partridge, Andrei Gurtov and Andrew Lachlan.
> >
> > The original IRSG Review was done on Rev 06 of the I-D.
> >
> > There are three votes for "Ready to Publish" and one vote=20
> for "No Objection".
> >
> > During the development of this document in the mobopts RG, several=20
> > people have thoroughly reviewed the document and the=20
> changes have been=20
> > incorporated.
> >
> > The draft revisions, reviews etc. are captured at:
> >
> > http://trac.tools.ietf.org/group/irtf/trac/ticket/26
> >
> >
> >
> > On Tue, Jul 14, 2009 at 10:39 AM, Rajeev=20
> Koodli<rajeev_koodli@yahoo.com> wrote:
> >  =20
> >> Hi Aaron,
> >>
> >> This is a request to publish the Mobopts RG document
> >> draft-irtf-mobopts-mmcastv6-ps-07 as an Informational RFC.
> >>
> >> The draft has undergone several revisions within the RG.
> >> The latest version of the draft (rev 07) includes the changes and=20
> >> edits that were suggested as part of the the IRSG Review by Craig=20
> >> Partridge.
> >> The IRSG Review was done on Rev 06 of the I-D.
> >>
> >> There was one vote for "Ready to Publish" and one vote for=20
> "No Objection"
> >> during the IRSG Poll. (I sought additional votes multiple=20
> times, but=20
> >> now it is time to progress the document)
> >>
> >> During the development of this document in the mobopts RG, several=20
> >> people have thoroughly reviewed the document and the changes have=20
> >> been incorporated.
> >>
> >> The draft revisions, reviews etc are captured at:
> >>
> >> http://trac.tools.ietf.org/group/irtf/trac/ticket/26
> >>
> >> Thanks,
> >>
> >> -Rajeev
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> Mobopts mailing list
> >> Mobopts@irtf.org
> >> http://www.irtf.org/mailman/listinfo/mobopts
> >>
> >>
> >>    =20
> >
> >  =20
> _______________________________________________
> Mobopts mailing list
> Mobopts@irtf.org
> http://www.irtf.org/mailman/listinfo/mobopts
>=20

From falk@bbn.com  Wed Sep 16 14:47:40 2009
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Subject: Re: [Mobopts] Request to publishdraft-irtf-mobopts-mmcastv6-ps-08.txt
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Whoops!  I see.  Sorry.

--aaron

Koodli, Rajeev wrote:
> Hi Aaron,
>
> You are looking at a different ID - version 16 is for the location
> privacy draft (which has finished IESG review, but is waiting for an AD
> write-up!)
>
> Thanks,
>
> -Rajeev
>  
>
>   
>> -----Original Message-----
>> From: mobopts-bounces@irtf.org 
>> [mailto:mobopts-bounces@irtf.org] On Behalf Of Aaron Falk
>> Sent: Tuesday, September 15, 2009 2:09 PM
>> To: Rajeev Koodli
>> Cc: irsg@isi.edu; mobopts@irtf.org
>> Subject: Re: [Mobopts] Request to 
>> publishdraft-irtf-mobopts-mmcastv6-ps-08.txt
>>
>> Rajeev-
>>
>> I observe that the current revision is -16, not -08.  See 
>> http://tools.ietf.org/html/draft-irtf-mobopts-location-privacy
>> -solutions. 
>> Do you want to publish -16?
>>
>> --aaron
>>
>> Rajeev Koodli wrote:
>>     
>>> Hi Aaron,
>>>
>>> I am following up on a previous request (for version 07).
>>> We received two more Ready to Publish with some comments.
>>> The authors have addressed the comments in version 08. 
>>>       
>> Please see the 
>>     
>>> formal request below.
>>>
>>> Thanks,
>>>
>>> -Rajeev
>>>
>>>
>>> This is a request to publish the Mobopts RG document
>>> draft-irtf-mobopts-mmcastv6-ps-08 as an Informational RFC.
>>>
>>> The draft has undergone several revisions within the RG.
>>> The latest version of the draft (rev 08) includes the changes and 
>>> edits that were suggested as part of the the IRSG Reviews by Craig 
>>> Partridge, Andrei Gurtov and Andrew Lachlan.
>>>
>>> The original IRSG Review was done on Rev 06 of the I-D.
>>>
>>> There are three votes for "Ready to Publish" and one vote 
>>>       
>> for "No Objection".
>>     
>>> During the development of this document in the mobopts RG, several 
>>> people have thoroughly reviewed the document and the 
>>>       
>> changes have been 
>>     
>>> incorporated.
>>>
>>> The draft revisions, reviews etc. are captured at:
>>>
>>> http://trac.tools.ietf.org/group/irtf/trac/ticket/26
>>>
>>>
>>>
>>> On Tue, Jul 14, 2009 at 10:39 AM, Rajeev 
>>>       
>> Koodli<rajeev_koodli@yahoo.com> wrote:
>>     
>>>   
>>>       
>>>> Hi Aaron,
>>>>
>>>> This is a request to publish the Mobopts RG document
>>>> draft-irtf-mobopts-mmcastv6-ps-07 as an Informational RFC.
>>>>
>>>> The draft has undergone several revisions within the RG.
>>>> The latest version of the draft (rev 07) includes the changes and 
>>>> edits that were suggested as part of the the IRSG Review by Craig 
>>>> Partridge.
>>>> The IRSG Review was done on Rev 06 of the I-D.
>>>>
>>>> There was one vote for "Ready to Publish" and one vote for 
>>>>         
>> "No Objection"
>>     
>>>> during the IRSG Poll. (I sought additional votes multiple 
>>>>         
>> times, but 
>>     
>>>> now it is time to progress the document)
>>>>
>>>> During the development of this document in the mobopts RG, several 
>>>> people have thoroughly reviewed the document and the changes have 
>>>> been incorporated.
>>>>
>>>> The draft revisions, reviews etc are captured at:
>>>>
>>>> http://trac.tools.ietf.org/group/irtf/trac/ticket/26
>>>>
>>>> Thanks,
>>>>
>>>> -Rajeev
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Mobopts mailing list
>>>> Mobopts@irtf.org
>>>> http://www.irtf.org/mailman/listinfo/mobopts
>>>>
>>>>
>>>>     
>>>>         
>>>   
>>>       
>> _______________________________________________
>> Mobopts mailing list
>> Mobopts@irtf.org
>> http://www.irtf.org/mailman/listinfo/mobopts
>>
>>     
>
>
> This email and any attachments may contain legally privileged and/or confidential information of Starent Networks, Corp. and is intended only for the individual or entity named in the message.  The information transmitted may not be used to create or change any contractual obligations of Starent Networks, Corp.  Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this e-mail and its attachments by persons or entities other than the intended recipient is prohibited. If you are not the intended recipient, please notify the sender immediately -- by replying to this message or by sending an email to postmaster@starentnetworks.com -- and destroy all copies of this message and any attachments without reading or disclosing their contents. Thank you.
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>   

From jari.arkko@piuha.net  Thu Sep 24 02:19:28 2009
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Subject: [Mobopts] IESG 3932 review of draft-irtf-mobopts-mmcastv6-ps
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Hi all,

I have reviewed this document today. The purpose of my review and the 
following IESG review is to perform a so called RFC 3932 check, i.e., 
make sure that documents outside the IETF stream do not allocate IANA 
values reserved for standards track protocols or otherwise collide with 
IETF working group efforts.

I have not found any collision with this work and IETF work, though 
obviously, this work has been one of the inputs for the formation of the 
MOBOPTS working group, and also talks about IP over a number of link layers.

I have recommended the standard RFC 3932 boilerplate IESG note about 
non-IETF work. Once the 3932bis work is concluded we will be able to 
make use of the new style of headers and boilerplates which do not 
require IESG notes. I have written to the tracker that if this happens 
before this document comes out of the RFC Editor queue then no note is 
needed.

The document will be under the entire IESG's review in two weeks to 
confirm my recommendation. Please remember that neither my review or the 
IESG review is a technical review. In other words, the RG is fully 
responsible for the correctness of the document. As a personal note I 
wanted to say nevertheless that I was reasonably happy with the 
document. Thank you for writing this.

In any case, I have included a few personal review comments below. Also, 
as the document contains quite a bit of material relating to IP over 
802.16 and IP over DVB, I have Cced the relevant working group chairs in 
case they have further comments.

Jari Arkko

> obility management may issue
>    traffic directives that lead to suboptimal routing, i.e., erroneous
>    subscriptions following predictive handover operations, or slow
>    effective leaves caused by MLD querying, or by departure of the MN
>    from a previous network without leaving the subscribed groups.
>   

I had a hard time parsing this. Maybe say instead: "Mobility management 
may impact routing by, e.g., erroneous ... or by MNs leaving networks 
without unsubscribing form the groups they were receiving.". What's a 
"slow effective leave"?

> IP multicast deployment in general has been hesitant over the past 15
>    years

s/hesitant/slow/?

> a strong business case for IP
>    portables
... portable IP-based devices.

> Current packet filtering practice causes inter-working problems between Mobile IPv6 nodes connected via GPRS [46 <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-46>].
>   
This is incorrect AFAIK. There are filtering procedures in IMS that 
cause problems for Mobile IPv6 and other things. However, those 
filtering mechanisms are not a part of the link layer nor are they 
applied for regular Internet access. I would suggest this statement be 
deleted from the draft, along with the reference.

> PTM uses an
>    unidirectional common channel, operating in unacknowledged without
>    adjustment of power levels and no reporting on lost packets.
>   

... unacknowledged mode?

>  Mobility services transport for MIH naturally reside
>    on the network layer and are currently in the process of
>    specification [55 <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-55>].
>
>   
draft-ietf-mipshop-mstp-solution is an approved specification (though 
not yet out of the RFC Ed queue).

Also, I believe 802.21 specifies both network and link layer transport, 
so its not clear why you say "naturally" above.

In general Section 4 wanders off a little bit to topics outside 
multicast. I understand that some amount of explanation is needed about 
what each L2 technology does, but I'd consider tightening the text in 
AUTH48 in some places.

> MLD
>    router querying will allow the multicast forwarding state to be
>    restored in case of an erroneous prediction (i.e., an anticipated
>    move to a network that is not fulfilled).
fulfilled?

>    Mobility protocols need to consider the implications and requirements
>    for AAA. AAA binding records may change between attachments, or may
>    be individually chosen prior to network (re-)association. The most
>    appropriate network path may be one that satisfies user preferences,
>    e.g., to use/avoid a specific network, minimize monetary cost, etc,
>    rather than one that only minimizes the routing cost. Consequently,
>    AAA bindings cannot be treated at a pure level of context transfer.
>   
It was not clear to me why AAA is relevant. And what's an "AAA binding 
record"? I must say that I don't understand the rest of the paragraph 
either.

The term AAA was not defined or expanded. Please check the other terms too.

> Due to lack of feedback, the admission [83 <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-83>] and binding
>    updates [84 <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-84>] of mobile multicast sources require autonomously
>    verifiable authentication as can be achieved by Cryptographically
>    Generated Addresses (CGAs).
>   
And presumably with other means as well. I would suggest saying "... be 
achieved by, for instance, ...".

It would have been interesting if Section 8 listed some of the multicast 
specific issues around security. For instance, I would presume that a HA 
operating tunneled multicast service by n-casting is more vulnerable to 
a DoS attack than some other more native multicast solution.

Jari


From schmidt@informatik.haw-hamburg.de  Thu Sep 24 02:49:02 2009
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Date: Thu, 24 Sep 2009 11:50:01 +0200
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Subject: Re: [Mobopts] IESG 3932 review of draft-irtf-mobopts-mmcastv6-ps
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Hi Jari,

many thanks for your review and in particular for the detailed comments: 
Most of them will obviously improve the document, some of them we have 
to consider in detail.

We will be back with an exhaustive response once we have re-worked all 
details.

Thanks again!

Thomas

Jari Arkko wrote:
> Hi all,
> 
> I have reviewed this document today. The purpose of my review and the 
> following IESG review is to perform a so called RFC 3932 check, i.e., 
> make sure that documents outside the IETF stream do not allocate IANA 
> values reserved for standards track protocols or otherwise collide with 
> IETF working group efforts.
> 
> I have not found any collision with this work and IETF work, though 
> obviously, this work has been one of the inputs for the formation of the 
> MOBOPTS working group, and also talks about IP over a number of link 
> layers.
> 
> I have recommended the standard RFC 3932 boilerplate IESG note about 
> non-IETF work. Once the 3932bis work is concluded we will be able to 
> make use of the new style of headers and boilerplates which do not 
> require IESG notes. I have written to the tracker that if this happens 
> before this document comes out of the RFC Editor queue then no note is 
> needed.
> 
> The document will be under the entire IESG's review in two weeks to 
> confirm my recommendation. Please remember that neither my review or the 
> IESG review is a technical review. In other words, the RG is fully 
> responsible for the correctness of the document. As a personal note I 
> wanted to say nevertheless that I was reasonably happy with the 
> document. Thank you for writing this.
> 
> In any case, I have included a few personal review comments below. Also, 
> as the document contains quite a bit of material relating to IP over 
> 802.16 and IP over DVB, I have Cced the relevant working group chairs in 
> case they have further comments.
> 
> Jari Arkko
> 
>> obility management may issue
>>    traffic directives that lead to suboptimal routing, i.e., erroneous
>>    subscriptions following predictive handover operations, or slow
>>    effective leaves caused by MLD querying, or by departure of the MN
>>    from a previous network without leaving the subscribed groups.
>>   
> 
> I had a hard time parsing this. Maybe say instead: "Mobility management 
> may impact routing by, e.g., erroneous ... or by MNs leaving networks 
> without unsubscribing form the groups they were receiving.". What's a 
> "slow effective leave"?
> 
>> IP multicast deployment in general has been hesitant over the past 15
>>    years
> 
> s/hesitant/slow/?
> 
>> a strong business case for IP
>>    portables
> ... portable IP-based devices.
> 
>> Current packet filtering practice causes inter-working problems 
>> between Mobile IPv6 nodes connected via GPRS [46 
>> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-46>].
>>   
> This is incorrect AFAIK. There are filtering procedures in IMS that 
> cause problems for Mobile IPv6 and other things. However, those 
> filtering mechanisms are not a part of the link layer nor are they 
> applied for regular Internet access. I would suggest this statement be 
> deleted from the draft, along with the reference.
> 
>> PTM uses an
>>    unidirectional common channel, operating in unacknowledged without
>>    adjustment of power levels and no reporting on lost packets.
>>   
> 
> ... unacknowledged mode?
> 
>>  Mobility services transport for MIH naturally reside
>>    on the network layer and are currently in the process of
>>    specification [55 
>> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-55>].
>>
>>   
> draft-ietf-mipshop-mstp-solution is an approved specification (though 
> not yet out of the RFC Ed queue).
> 
> Also, I believe 802.21 specifies both network and link layer transport, 
> so its not clear why you say "naturally" above.
> 
> In general Section 4 wanders off a little bit to topics outside 
> multicast. I understand that some amount of explanation is needed about 
> what each L2 technology does, but I'd consider tightening the text in 
> AUTH48 in some places.
> 
>> MLD
>>    router querying will allow the multicast forwarding state to be
>>    restored in case of an erroneous prediction (i.e., an anticipated
>>    move to a network that is not fulfilled).
> fulfilled?
> 
>>    Mobility protocols need to consider the implications and requirements
>>    for AAA. AAA binding records may change between attachments, or may
>>    be individually chosen prior to network (re-)association. The most
>>    appropriate network path may be one that satisfies user preferences,
>>    e.g., to use/avoid a specific network, minimize monetary cost, etc,
>>    rather than one that only minimizes the routing cost. Consequently,
>>    AAA bindings cannot be treated at a pure level of context transfer.
>>   
> It was not clear to me why AAA is relevant. And what's an "AAA binding 
> record"? I must say that I don't understand the rest of the paragraph 
> either.
> 
> The term AAA was not defined or expanded. Please check the other terms too.
> 
>> Due to lack of feedback, the admission [83 
>> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-83>] 
>> and binding
>>    updates [84 
>> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#ref-84>] 
>> of mobile multicast sources require autonomously
>>    verifiable authentication as can be achieved by Cryptographically
>>    Generated Addresses (CGAs).
>>   
> And presumably with other means as well. I would suggest saying "... be 
> achieved by, for instance, ...".
> 
> It would have been interesting if Section 8 listed some of the multicast 
> specific issues around security. For instance, I would presume that a HA 
> operating tunneled multicast service by n-casting is more vulnerable to 
> a DoS attack than some other more native multicast solution.
> 
> Jari
> 
> _______________________________________________
> Mobopts mailing list
> Mobopts@irtf.org
> http://www.irtf.org/mailman/listinfo/mobopts

-- 

Prof. Dr. Thomas C. Schmidt
° Hamburg University of Applied Sciences                   Berliner Tor 7 °
° Dept. Informatik, Internet Technologies Group    20099 Hamburg, Germany °
° http://www.haw-hamburg.de/inet                   Fon: +49-40-42875-8452 °
° http://www.informatik.haw-hamburg.de/~schmidt    Fax: +49-40-42875-8409 °

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=20
Hi Jari,

Thanks for your review. The authors will find your input useful and will
address them.

> I have not found any collision with this work and IETF work,=20
> though obviously, this work has been one of the inputs for=20
> the formation of the MOBOPTS working group, and also talks=20
> about IP over a number of link layers.

Perhaps you meant MULTIMOB above.

Regards,

-Rajeev


>=20
> I have recommended the standard RFC 3932 boilerplate IESG=20
> note about non-IETF work. Once the 3932bis work is concluded=20
> we will be able to make use of the new style of headers and=20
> boilerplates which do not require IESG notes. I have written=20
> to the tracker that if this happens before this document=20
> comes out of the RFC Editor queue then no note is needed.
>=20
> The document will be under the entire IESG's review in two=20
> weeks to confirm my recommendation. Please remember that=20
> neither my review or the IESG review is a technical review.=20
> In other words, the RG is fully responsible for the=20
> correctness of the document. As a personal note I wanted to=20
> say nevertheless that I was reasonably happy with the=20
> document. Thank you for writing this.
>=20
> In any case, I have included a few personal review comments=20
> below. Also, as the document contains quite a bit of material=20
> relating to IP over
> 802.16 and IP over DVB, I have Cced the relevant working=20
> group chairs in case they have further comments.
>=20
> Jari Arkko
>=20
> > obility management may issue
> >    traffic directives that lead to suboptimal routing,=20
> i.e., erroneous
> >    subscriptions following predictive handover operations, or slow
> >    effective leaves caused by MLD querying, or by departure=20
> of the MN
> >    from a previous network without leaving the subscribed groups.
> >  =20
>=20
> I had a hard time parsing this. Maybe say instead: "Mobility=20
> management may impact routing by, e.g., erroneous ... or by=20
> MNs leaving networks without unsubscribing form the groups=20
> they were receiving.". What's a "slow effective leave"?
>=20
> > IP multicast deployment in general has been hesitant over=20
> the past 15
> >    years
>=20
> s/hesitant/slow/?
>=20
> > a strong business case for IP
> >    portables
> ... portable IP-based devices.
>=20
> > Current packet filtering practice causes inter-working=20
> problems between Mobile IPv6 nodes connected via GPRS [46=20
> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#
> ref-46>].
> >  =20
> This is incorrect AFAIK. There are filtering procedures in=20
> IMS that cause problems for Mobile IPv6 and other things.=20
> However, those filtering mechanisms are not a part of the=20
> link layer nor are they applied for regular Internet access.=20
> I would suggest this statement be deleted from the draft,=20
> along with the reference.
>=20
> > PTM uses an
> >    unidirectional common channel, operating in=20
> unacknowledged without
> >    adjustment of power levels and no reporting on lost packets.
> >  =20
>=20
> ... unacknowledged mode?
>=20
> >  Mobility services transport for MIH naturally reside
> >    on the network layer and are currently in the process of
> >    specification [55=20
> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#
> ref-55>].
> >
> >  =20
> draft-ietf-mipshop-mstp-solution is an approved specification=20
> (though not yet out of the RFC Ed queue).
>=20
> Also, I believe 802.21 specifies both network and link layer=20
> transport, so its not clear why you say "naturally" above.
>=20
> In general Section 4 wanders off a little bit to topics=20
> outside multicast. I understand that some amount of=20
> explanation is needed about what each L2 technology does, but=20
> I'd consider tightening the text in
> AUTH48 in some places.
>=20
> > MLD
> >    router querying will allow the multicast forwarding state to be
> >    restored in case of an erroneous prediction (i.e., an anticipated
> >    move to a network that is not fulfilled).
> fulfilled?
>=20
> >    Mobility protocols need to consider the implications and=20
> requirements
> >    for AAA. AAA binding records may change between=20
> attachments, or may
> >    be individually chosen prior to network=20
> (re-)association. The most
> >    appropriate network path may be one that satisfies user=20
> preferences,
> >    e.g., to use/avoid a specific network, minimize monetary=20
> cost, etc,
> >    rather than one that only minimizes the routing cost.=20
> Consequently,
> >    AAA bindings cannot be treated at a pure level of=20
> context transfer.
> >  =20
> It was not clear to me why AAA is relevant. And what's an=20
> "AAA binding record"? I must say that I don't understand the=20
> rest of the paragraph either.
>=20
> The term AAA was not defined or expanded. Please check the=20
> other terms too.
>=20
> > Due to lack of feedback, the admission [83=20
> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#
> ref-83>] and binding
> >    updates [84=20
> <http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps-08#
> ref-84>] of mobile multicast sources require autonomously
> >    verifiable authentication as can be achieved by Cryptographically
> >    Generated Addresses (CGAs).
> >  =20
> And presumably with other means as well. I would suggest=20
> saying "... be achieved by, for instance, ...".
>=20
> It would have been interesting if Section 8 listed some of=20
> the multicast specific issues around security. For instance,=20
> I would presume that a HA operating tunneled multicast=20
> service by n-casting is more vulnerable to a DoS attack than=20
> some other more native multicast solution.
>=20
> Jari
>=20
> _______________________________________________
> Mobopts mailing list
> Mobopts@irtf.org
> http://www.irtf.org/mailman/listinfo/mobopts
>=20

From jari.arkko@piuha.net  Thu Sep 24 11:13:49 2009
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Subject: Re: [Mobopts] IESG 3932 review of draft-irtf-mobopts-mmcastv6-ps
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Rajeev,

>> I have not found any collision with this work and IETF work, 
>> though obviously, this work has been one of the inputs for 
>> the formation of the MOBOPTS working group, and also talks 
>> about IP over a number of link layers.
>>     
>
> Perhaps you meant MULTIMOB above.
>   
Of course, sorry for the confusion.

Jari

