As people start drafting 'multicast-transition' schemes, I would like to
stress that it would be nice that the IGMP extensions at both ends of
the 'multicast path' would be the same, so that in the case of the
absence of a multicast network inbetween source and receiver it works
transparantly.
+- -+
+---+ | +---+ | +---+ +---+ +---+ +---+
|src|----|--|ucr|--|----|mcr|------|mcr|-----|ucr|-----|rcv|
+---+ | +---+ | +---+ +---+ +---+ +---+
+- -+
Doron's IGMP++ MBone Tony's IGMP++
<---------------------><----------><------------------->
dirk