- Bronze, 100 points or more
Hi there. I have a question regarding multicast routing. I have a server that is dual-home to a pair of 4507R's. The 4507R's are running HSRP for the local gateway, OSPF for routing, and PIM sparse-dense mode for multicast. The multicast source is from a router off of a VLAN that is shared between the 4507R's, but is only physically connected to the secondary 4507R. Both switches have IP's in the VLAN and are running PIM. The router is the DR for that vlan. I have static mroute's for the sources on each 4507R, so for all intents and purposes, the 4507R's are configured the same in regards to multicast.
I'm having a problem where the server randomly drops one of it's multicast feeds for a minute, then picks it back up successfully. The server is subscribing to seven feeds, and only one drops at a time, but it's completely random as to which feed will drop off.
Can anyone suggest some multicast troubleshooting tools I can use to help diagnose this? Or does anyone have any ideas what might be wrong?