55
Downstream interface(s) information:
Total number of downstreams: 1
1: GigabitEthernet2/1/1
Protocol: pim-dm, UpTime: 00:04:25, Expires: -
The output shows that Router A is the RPF neighbor of Router C and the multicast data from Router A is
delivered over a GRE tunnel to Router C.
Troubleshooting multicast routing and forwarding
Static multicast route failure
Symptom
No dynamic routing protocol is enabled on the routers, and the physical status and link layer status of
interfaces are both up, but the static multicast route fails.
Analysis
• If a static multicast route is not correctly configured or updated to match the current network
conditions, it does not exist in the static multicast routing table.
• If a better route is found, the static multicast route might also fail.
Solution
1. Use the display multicast routing-table static command to display information about static
multicast routes. Verify that the static multicast route has been correctly configured and the route
entry exists in the static multicast routing table.
2. Check the type of the interface that connects the static multicast route to the RPF neighbor. If the
interface is not a point-to-point interface, make sure you specify the address for the RPF neighbor.
3. If the problem persists, contact HP Support.
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