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

[Haruki Izumikawa <[e-mail]>]

Hi Dutta,

Thank you for all the information. I went through the web pages. Though, 
unfortunately, I could not find the SIP Mobile mailing list Archive, I 
found that the references you organized are very useful. And, I am very 
interested in "SIP-Mobile Minutes" in 50th IETF. I would care the 
conclusion of the informal meeting and the direction of the SIP 
mobility. If you have any information concerning them, please let me know.

Best 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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