Hello! I'm new to working with CGMP and PIM in general and have a conundrum-
I've come into a new network where multicast is configured. There is no experienced network engineer on site with historical info on this setup. I believe CGMP is misconfigured because taking my personal laptop and connecting it to a user port shows roughly 75% of the packets received (600/800) in 30 seconds are CGMP Join messages (Wireshark pcap). The core 6500 switch is configured as follows- ip pim rp-address x.x.x.x 85 ip pim send-rp-announce LoopbackXX scope 16 group-list 85 interval 30 interface LoopbackXX description PIM RP loopback IP ip address x.x.x.x y.y.y.y ip pim sparse-dense mode Interface Vlan55 description User Vlan ip pim sparse-dense-mode ip cgmp no ip mroute-cache >From the core it's layer 2 out to edge switches (3750 stacks) on the user vlan. I don't see any explicit configs on the 3750 stacks so I'm thinking that's where my problem is, but I don't know how to proceed! Regards, Bernie -- A politician is an animal which can sit on a fence and yet keep both ears to the ground. -H.L. Mencken _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
