Configuring an RP

Context

To use the Anycast RP feature, configure multiple RPs with the same address in a PIM-SM domain. Before configuring Anycast RP in the PIM-SM domain, configure a loopback interface on each switch and assign the same IP address to the loopback interfaces. Then configure these interfaces as static RPs or candidate rendezvous points (C-RPs).

To use a static RP, configure the RP address on each switch in the PIM-SM domain.
To use a dynamic RP, C-RP address only on the switches that need to provide the Anycast RP function.

After an RP is configured, the RP interface address needs to be advertised using a unicast routing protocol so that each switch on the network has a reachable route to the RP interface.

Procedure

Run system-view
The system view is displayed.
Run interface loopback interface-number
The loopback interface view is displayed.
Run ip address ip-address { mask | mask-length }
An IP address is configured for the loopback interface.
(For dynamic RP configuration) Run pim sm
PIM-SM is enabled on the interface.

This command is not required if you configure a static RP.
Run quit
Return to the system view.
Run pim [ vpn-instance vpn-instance-name | all-instance ]
The PIM view is displayed.
Configure the loopback interface address as a static RP address or C-RP address.
- Configure a static RP.
  
  Run static-rp rp-address
  
  The loopback interface address is configured as a static RP address.
- Configure a dynamic RP.
  
  When configuring dynamic RP, configure candidate bootstrap routers (C-BSRs). Ensure that the C-BSR and the C-RP addresses are different. For details on how to configure a C-BSR, see Configuring a C-BSR.
  
  Run c-rp loopback interface-number
  
  The loopback interface address is configured as a C-RP address.