With the PIM-SM election process, a backup RP
automatically takes over if the active RP router becomes unavailable. However, you
can explicitly select the RP, so that the device uses the selected RP for all
group-to-RP mappings and overrides the set of candidate RPs supplied by the BSR.
-
Enter global configuration mode.
device# configure terminal
-
Enter router PIM configuration
mode.
device(config)# router pim
-
Specify the IP address of the
RP.
device(config-pim-router)# rp-address 4.4.4.4
The command in this example
identifies the device interface at IP address 4.4.4.4 as the RP for the PIM-SM
domain. The device uses the specified RP and ignores group-to-RP mappings
received from the BSR.
-
To configure static RP with
specific group ranges, run the following commands.
device(config-pim-router)# rp-address 4.4.4.4 static-rp-list
device(config)# ip prefix-list static-rp-list permit 225.1.1.0/24
The following commands
configure the RP candidate.
device(config-pim-router)# rp-candidate interface loopback 11
device(config-pim-router)# rp-candidate prefix my-rp-cand-list
device(config)# ip prefix-list my-rp-cand-list permit 226.1.1.0/24
device(config)# ip prefix-list my-rp-cand-list permit 228.1.1.0/24
