In current deployments, the IP multicast forwarding scheme is used by many
providers to deliver some services, such as live TV broadcasting.
Transition to IPv6 raises issues and corresponding requirements. In
particular, IPv4 service continuity is an essential requirement from a
business perspective.

This specifically includes continued receiver access to IPv4-framed contents
even when the assignment of a dedicated global IPv4 address to the receiver
is no longer possible and even after the receivers have migrated to IPv6.
Likewise, the delivery of IPv6-framed contents to IPv4 receivers must also
be possible.

Multicast transition scenarios include the ability to access IPv4-framed
multicast contents from an IPv4 receiver over an IPv6-only network and the
ability to access IPv4-framed multicast contents from an IPv6-only receiver.

The aforementioned issues can be classified into:
.    Multicast group and source discovery procedures
.    Multicast group subscription procedures
.    Multicast tree computation
.    Required IPv4-IPv6 multicast inter-working functions

The proposed BoF session aims at discussing and hopefully validating the
need for the IETF to work on these issues.

The proposed agenda for the BoF session is:

.    Welcome introduction and agenda bashing (chairs, 10 min)
.    Multicast transition scenarios (XiaoHong?, 20 min)
.    Requirements (Yiu Lee?, 15 min)
.    Issues (Tom Taylor?, 15 min)
.    Scope (TBD, 15 min)
.    List of work items (Tina TSOU, 15 min)
.    Discussion (all, 20 min)
.    Conclusion and next steps (chairs, ADs, 10 min)

Reading material:
http://tools.ietf.org/html/draft-jaclee-behave-v4v6-mcast-ps