Re: [Sipping] Request for Open discussion about SIP mobility

[Haruki Izumikawa <[e-mail]>]

Hi all,

Will someone tell me the conclusion of the past discussion concerning 
SIP mobility. I have read the "SIP-Mobile Minutes" in 50th IETF and 
understood the outline of the discussion. But, I cannot find the 
conclusion of the meeting. So, I would be happy especially to hear the 
conclusion.

Regards,

Haruki



Ashutosh Dutta wrote:
> Haruki,
>        Thanks for bringing this discussion up again. Few years back we 
> did create a mailing list and web page to add some of the references 
> with respect to SIP-based mobility work. This reference list is not 
> up-to-date by any means and needs to be updated as people have done more 
> work on this recently.
> 
> Here is the pointer to the archive that has some relevant materials. I 
> can update this list with more recent papers in this area.
> 
> http://www.argreenhouse.com/SIP-mobile/
> 
> Regards
> Ashutosh
> 
> 
> Haruki Izumikawa wrote:
>> Hello folks,
>>
>> I'd like to have an open discussion about SIP-based mobility in this ML.
>> Mobility managements using SIP have been actively studied and developed
>> worldwide since "Mobility Support Using SIP" (by Elin and Henning) was
>> published. SIP-based mobility would have strong advantages such as its
>> great affinity for an application as well as flexibility, i.e., terminal
>> mobility can be optimally supported independent from underlying network.
>> On the other hand, despite many advantages, it is not used for
>> large-scale commercial yet. In addition, the discussion about SIP-based
>> mobility in IETF seems to be undynamic.
>> These days, a multimode terminal is getting popular. Each access
>> networks, e.g., cellular and WLAN, have different characteristics in
>> terms of throughput or delay. In such a heterogeneous network, SIP
>> becomes more useful tool for mobility management because of its
>> flexibility. The quality of a multimedia service can be adaptively
>> changed in accordance with a nature of an access networks even after
>> changing an access network. I think it is time to resume discussing
>> about SIP-based mobility. For your information, I have submitted I-D
>> regarding seamless session handoff by SIP-based bicasting.
>> http://www.ietf.org/internet-drafts/draft-izumikawa-sipping-sipbicast-01.txt 
>>
>> I would be happy to hear frank opinions of SIP specialists.
>>
>> Best regards,
>>
>> Haruki
>>
>>
> 

-- 
Haruki Izumikawa
KDDI R&D Laboratories

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