Inter-Rp Communication Faults In Anycast Rp Application - HP A6600 Configuration Manual

Inter-RP communication faults in Anycast RP application

Symptom
RPs fail to exchange their locally registered (S, G) entries with one another in the Anycast RP application.
Analysis
In the Anycast RP application, RPs in the same PIM-SM domain are configured to be MSDP peers to
•
achieve load balancing among the RPs.
An MSDP peer address must be different from the anycast RP address, and the C-BSR and C-RP must
•
be configured on different devices or interfaces.
If originating-rp is executed, MSDP will replace the RP address in the SA messages with the address
•
of the interface specified in the command.
• When an MSDP peer receives an SA message, it performs RPF check on the message. If the MSDP
peer finds that the remote RP address is the same as the local RP address, it will discard the SA
message.
Solution
Check that a route is available between the routers. Carry out display ip routing-table to check
1.
whether the unicast route between the routers is correct.
Check that a unicast route is available between the two routers that will become MSDP peer to each
2.
other.
Check the configuration of originating-rp. In the Anycast RP application environment, be sure to use
3.
originating-rp to configure the RP address in the SA messages, which must be the local interface
address.
Verify that the C-BSR address is different from the anycast RP address.
4.
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