8.4. Verify Multicast
Now, I take you through a few of the commands that allow you to see and verify the multicast configuration on a router. My discussion includes the multicast routing table, interface information, and RP information.
The command to show a multicast routing table is:
DalRtr1#show ip mroute [group-address ] [summary ] [count ][active kpbs ]
Here is a sample of the output from a routing table.
DalRtr1#show ip mroute IP Multicast Routing Table Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT Timers: Uptime/Expires Interface state: Interface, Next-Hop, State/Mode (*, 225.225.125.25), 00:01:10/00:01:32, RP 10.10.10.1, flags: SPF Incoming interface: ...
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