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Analysis
•
If PIM-SM is running in the VPN instance, the BSR information for the VPN instance is required.
Otherwise, the VPN instance’s MVRF cannot be correctly established.
•
If PIM-SM is running in the VPN instance, the RP information for the VPN instance is required.
If a unicast route to the RP is not available, this means that a PIM adjacency has not been
correctly established between the public network and the VPN instance, and thus VPN instance
cannot correctly establish its MVRF.
•
The customer DR must have a route to the VPN RP.
Solution
1.
Use the
display pim bsr-info
command to verify that the BSR information exists on the public
network and VPN instance. If not, verify that a unicast route exists to the BSR.
2.
Use the
display pim rp-info
command to view the RP information. If no RP information is
available, verify that a unicast route exists to the RP. Use the
display pim neighbor
command
to verify that the PIM adjacencies have correctly established in the public network and the VPN.
3.
Use the
ping
command to check the connectivity between the VPN DR and the VPN RP.
