Re: [multimob] RV: I-D Action: draft-ietf-multimob-fast-handover-03.txt

["Thomas C. Schmidt" <[e-mail]>]

Hi Carlos,

On 05.11.2012 18:13, Carlos Jesús Bernardos Cano wrote:

>> I was just flying over the rams/sial draft and saw my previous comments
>> untreated.
>>
>> This was the transient binding below ... and IPv4 treatment ... and some
>> more details I had commented about 10 - 15 months ago, but cannot
>> quickly find my mail. Please have a look.
>
> Regarding the transient binding, I thought Marco already commented on
> that. I'm just pasting below what he said:
>
> "Just a side note: As there was already some confusion during Vancouver
> meeting and the reference to the transient binding extensions (RFC6058)
> still shows up repeatedly, let me clarify one thing:
>
> PFMIP6 and Transient Binding address different use cases, they
> have been specified to address different problem spaces. It's
> not appropriate to refer to these two unicast protocol extensions
> in the multicast space [...]"
>

This was a different discussion. Marco said *PFMIP* and 
*Transient*Binding* are different (which is obviously true) ... but your 
draft is unrelated to *PFMIP* - it does transfer context via the LMA ... 
just as *Transient*Binding* does. As mentioned earlier: It does not 
appear smart to me if we define Multicast solutions that mirror unicast 
approaches, but remain incompatible on the wire. (For a way how to do 
unicast-integrated fast handover support see 
http://tools.ietf.org/html/draft-schmidt-multimob-fmipv6-pfmipv6-multicast-07).

The second issue was *IPv4*support* - I suppose, PMIP acceleration 
protocols MUST provide IPv4 support. I don't see this in the current 
version.

Regarding further issues I raised longer ago, I searched, but cannot 
find my old email ... if time permits, I should review the draft in more 
detail.

Cheers,

Thomas

> Probably Luis can add on top of that.
>
>>
>> So I guess you wanted to say "*partially* addressing received comments"
>
> Regarding the other comments you mentioned, please tell us which
> specific issues you have on current version. When we said that current
> version addresses all received comments, we truly believed that, though
> it is possible we missed some by mistake (not intentionally). We are
> actually looking forward for your review.
>
> Thanks,
>
> Carlos
>
>>
>> Cheers,
>>
>> Thomas
>>
>> -------- Original Message --------
>> Subject: [multimob] draft-ietf-multimob-fast-handover + transient binding
>> Date: Mon, 30 Jul 2012 14:36:25 -0700
>> From: Thomas C. Schmidt <[e-mail]>
>> To: [e-mail] <[e-mail]>
>>
>> Hi,
>>
>> as discussed today in the meeting, the following question was raised:
>>
>> draft-ietf-multimob-fast-handover transfers context from pMAG via LMA to
>> nMAG - which in concept corresponds to the *Transient*Binding* in
>> unicast RFC 6058 http://tools.ietf.org/html/rfc6058.
>>
>> draft-ietf-multimob-fast-handover does not even reference RFC 6058 ...
>> but probably should closely stick to the unicast solution.
>>
>> So the question is about protocol systematics: Do we want unicast and
>> multicast protocol operations remain incompatible?
>>
>> Cheers,
>>
>> Thomas
>>
>> On 23.10.2012 15:09, LUIS MIGUEL CONTRERAS MURILLO wrote:
>>> Hi all,
>>>
>>> Yesterday we submitted a new version of the WG document "draft-ietf-multimob-fast-handover", addressing received comments and pending sections.
>>>
>>> Additional comments are welcome.
>>>
>>> Best regards,
>>>
>>> Luis
>>>
>>> -----Mensaje original-----
>>> De: [e-mail] [mailto:[e-mail]] En nombre de [e-mail]
>>> Enviado el: lunes, 22 de octubre de 2012 20:07
>>> Para: [e-mail]
>>> CC: [e-mail]
>>> Asunto: [multimob] I-D Action: draft-ietf-multimob-fast-handover-03.txt
>>>
>>>
>>> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>>>    This draft is a work item of the Multicast Mobility Working Group of the IETF.
>>>
>>>           Title           : PMIPv6 multicast handover optimization by the Subscription Information Acquisition through the LMA (SIAL)
>>>           Author(s)       : Luis M. Contreras
>>>                             Carlos J. Bernardos
>>>                             Ignacio Soto
>>>           Filename        : draft-ietf-multimob-fast-handover-03.txt
>>>           Pages           : 42
>>>           Date            : 2012-10-22
>>>
>>> Abstract:
>>>      This document specifies a multicast handover optimization mechanism
>>>      for Proxy Mobile IPv6 to accelerate the delivery of multicast traffic
>>>      to mobile nodes after handovers.  The mechanism is based on speeding
>>>      up the acquisition of mobile nodes' multicast context by the mobile
>>>      access gateways.  To do that, extensions to the current Proxy Mobile
>>>      IPv6 protocol are proposed.  These extensions are not only applicable
>>>      to the base solution for multicast support in Proxy Mobile IPv6, but
>>>      they can also be applied to other solutions being developed to avoid
>>>      the tunnel convergence problem.  Furthermore, they are also
>>>      independent of the role played by the mobile access gateway within
>>>      the multicast network (either acting as multicast listener discovery
>>>      proxy or multicast router).
>>>
>>>
>>> The IETF datatracker status page for this draft is:
>>> https://datatracker.ietf.org/doc/draft-ietf-multimob-fast-handover
>>>
>>> There's also a htmlized version available at:
>>> http://tools.ietf.org/html/draft-ietf-multimob-fast-handover-03
>>>
>>> A diff from the previous version is available at:
>>> http://www.ietf.org/rfcdiff?url2=draft-ietf-multimob-fast-handover-03
>>>
>>>
>>> Internet-Drafts are also available by anonymous FTP at:
>>> ftp://ftp.ietf.org/internet-drafts/
>>>
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>>
>
>
>
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-- 

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: [phone] °
° http://www.informatik.haw-hamburg.de/~schmidt    Fax: [phone] °