[SAM] IETF-71 meeting for SAM RG

[Thomas C. Schmidt]

Hi Xiamoming, John, and all,

John Buford wrote:

> 
>     --> My interpretation would be that SAMRG intends to take group
>     management into account and consider multicast over specific scenarios.
>     For the former, I didn't recall much ML discussion on the design space;
>     For the later if I remember it correctly there is an ID (actually a
>     group of IDs) on mobile multicast recently and even discussed in last
>     IETF, would people here be interested on this and like to explore more
>     details?
> 
>  
> There have been no proposals in the RG that I can remember on ALM in 
> mobile P2P,
> I don't think there has been much work on this in general.
>  
There is a good analysis and architectural proposal by Garyfalos &
Almeroth: "A Flexible Overlay Architecture for Mobile IPv6 Multicast",
IEEE Journ. on Selected Areas in Comm., 23 (11), pp. 2194-2205, November
2005.

Also, the Hybrid Shared Tree presentation Matthias gave in Chicago
headed in this direction:
   Wählisch, M., Schmidt, T.C. "Between Underlay and Overlay: On
Deployable, Efficient, Mobility-agnostic Group Communication
Services", Internet Research, 17 (5), pp. 519-534, Emerald
Insight, UK, November 2007.

>     * Operational experience of IPTV services (or IPTV operational
>     practices) - Informational
>     * Experience with the xxx Protocol - Informational (or BCP?)
>     * (Suggestions for) Multicast in mobile IP(v6) environments (or some
>     other scenarios) - Informational
>     etc.
>
Work in this area is currently addressed in MobOpts. There is a
converging problem statement:

http://tools.ietf.org/html/draft-irtf-mobopts-mmcastv6-ps

and quite a couple of solutions, which are referenced therein.

A discussion on IPTV issues has recently been issued:

http://tools.ietf.org/html/draft-deng-multimob-ps-mobilemulticast

Btw.: IPTV is currently deployed on significant scale in Europe, using
native IP Multicast and following the business model of carriers taking
the role of content providers/distributors.

Best regards,

thomas


-- 

° Prof. Dr. Thomas C. Schmidt
° HAW Hamburg, Dept. Informatik
° University of Applied Sciences
° Berliner Tor 7, D 20099 Hamburg
° Germany, Fon: +49-40-42875-8157
° http://www.informatik.haw-hamburg.de/~schmidt