I have a network with two cores that were dual homed but we are upgrading and breaking legs so that only one leg from the edge is connected. PIM is enabled and two 10 gig ports are LAG between Core "A" and Core "B".
If a device sending multicast on the edge is only connected to Core B then I cannot get multicast on a client that is only connected to Core A. I can get unicast traffic though. Anyone happen to know why?
We actually had a port with ipmcforwarding enabled that should not have been. It was connected to our companies IT network who was blocking multicast, disabling ipmcforwarding solved the problem.