All things related to multicast

[Hitoshi Asaeda <>]

Greg,

> We're all aware of the lack of IGMPv3/ssm support in OSX and QT. I'd
> would like to gather feedback on where and how this gap is affecting
> service offering and deployment in the R&E community.
> 
> Can you please send me info about how and where this gap is affecting
> you? I can compile the data back to the list if you like. But my
> primary object is for lobbying.

I'm sorry that this is not a comment for your inquiry.
If Apple considers IGMPv3/MLDv2 kernel implementation for OSX, I may
want to propose Lightweight IGMPv3 (LW-IGMPv3) and LW-MLDv2.
(draft-ietf-mboned-lightweight-igmpv3-mldv2-04.txt)

I had implemented full IGMPv3, full MLDv2, and LW-IGMPv3 for NetBSD.
In my experience, these implementation and maintenance costs were
different, because Lightweight version protocol is very simplified.
(Well, more precisely, Advanced MSF APIs are the key of complexity,
though.)
If you want, you can get these codes (sorry, a bit old) and compare
them;
http://www.sfc.wide.ad.jp/~asaeda/igmpv3/
http://www.sfc.wide.ad.jp/~asaeda/mldv2/
http://www.sfc.wide.ad.jp/~asaeda/LW-IGMPv3/

Thanks for your attention,
--
Hitoshi Asaeda