All things related to multicast

[Jan Novak <>]

> Well, if you're sourcing in a sparse mode domain then you don't flow into
> dense domains unless the Sparse->Dense border router knows of group
> members inside the Dense domain, right?  (Border routers can know of
> group members inside Dense domains via the sender-is-member hack or
> Domain Wide Reports)
> 

This is nice theory, but we are fighting with tens of joins from
DM-SM border routers, sending joins for members which don`t even exist
in the rest of mcast network (but once joint a group -))
and causing steady traffic flows
over "SM" interfaces - you don`t have to be ignorant user, you just
run DM domain and are connected over SM/MSDP to the outside world.

Jan