Re: [multimob] Fast Handover Solutions

"Thomas C. Schmidt" <schmidt@informatik.haw-hamburg.de> Tue, 20 November 2012 00:27 UTC

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Date: Tue, 20 Nov 2012 01:27:45 +0100
From: "Thomas C. Schmidt" <schmidt@informatik.haw-hamburg.de>
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Cc: "multimob@ietf.org" <multimob@ietf.org>, Behcet Sarikaya <sarikaya2012@gmail.com>
Subject: Re: [multimob] Fast Handover Solutions
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Hi Behcet,

these requirements are for a fast handover solution, i.e., a protocol 
that operates a *handover* in a *fast* manner.

I agree that draft-ietf-multimob-fast-handover does not meet the 
requirements, but had written earlier on the list that the name of this 
draft is misleading in two ways: (i) draft-ietf-multimob-fast-handover 
is not a fast handover solution, and (ii) the name "fast handover" is 
tied to RFC5568/RFC5949-like schemes for good reasons.

Cheers,

Thomas

On 20.11.2012 00:09, Behcet Sarikaya wrote:
> Hi Thomas,
>
> It seems that these requirements are for
>
> draft-schmidt-multimob-fmipv6-pfmipv6-multicast
>
> and not for
> draft-ietf-multimob-fast-handover.
>
> What do you think?
>
> Regards,
>
> Behcet
>
> On Mon, Nov 12, 2012 at 4:28 PM, Thomas C. Schmidt
> <schmidt@informatik.haw-hamburg.de> wrote:
>> Hi all,
>>
>> after the - somewhat uninformed discussion at IETF85 - chairs asked me to
>> restate requirements of a "fast handover solution" for Multicast Mobility.
>>
>> Here they are:
>>
>>   (i) Handover should be fast (this is only true for a direct pMAG/AR to
>> nMAG/AR solution such as
>> http://tools.ietf.org/html/draft-schmidt-multimob-fmipv6-pfmipv6-multicast).
>>
>>   (ii) Multicast handover should be fully synchronized with unicast handover
>> (otherwise unicast and multicast states diverge as is a well-known issue for
>> the RAMS-approach, i.e.,
>> https://tools.ietf.org/html/draft-ietf-multimob-fast-handover).
>>
>>   (iii) Multicast handover solutions should tightly integrate with unicast
>> handover (only
>> http://tools.ietf.org/html/draft-schmidt-multimob-fmipv6-pfmipv6-multicast
>> integrates with PFMIPv6 and FMIPv6).
>>
>>   (iv) Handover management should reuse standard mobility and multicast
>> protocol operations for easy implementation and deployment
>> (http://tools.ietf.org/html/draft-schmidt-multimob-fmipv6-pfmipv6-multicast
>> introduced the use of standard IGMP/MLD records for context description in
>> transfer, which has been copied several times).
>>
>>   (v) Multicast handover management should integrate ASM and SSM, as well as
>> IPv4 (IGMP) and IPv6 (MLD), which is only provided by
>> http://tools.ietf.org/html/draft-schmidt-multimob-fmipv6-pfmipv6-multicast.
>>
>> Based on these facts, chairs and AD proclaimed to re-decide on future paths
>> for Multimob fast handover solutions.
>>
>> Cheers,
>>
>> Thomas
>> --
>>
>> 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 °
>> _______________________________________________
>> multimob mailing list
>> multimob@ietf.org
>> https://www.ietf.org/mailman/listinfo/multimob

-- 

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 °