Does anyone know if Brocade/Foundry supports multicast over GRE tunnels? My setup is simple, L2 access switch connected to distribution switch (L3), conencted to a Core switch (L3). If I hang the source off the Core, enable PIM on the connencting interfaces all works well. If I add a GRE tunnel that terminates upstream of the core switch to remote router, add the appropriate PIM sparse mode commands on the tunnel interfaces and locate the source on the same remote router, all is broken. If I follow the Cisco docs for enabling multicast over GRE, add mroutes for the RP and the source pointing to the tunnel, I still get no joy.
I can see the group address and the RP in the PIM cache as well IGMP. I have performed packet traces and can see IGMP V2 requests, creates, etc. Then pretty much 23 seconds later I see the XP receiver send a IGMP leave, thoughts? Are there any good docs for Foundry multicast over GRE? Troubleshooting? help from someone who has implemented multicast on Foundry? harbor235 ;}
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