Including a Bordering PIM Dense-Mode Region in MSDP You can configure MSDP on a device that borders a PIM sparse-mode region with a dense-mode region. By default, active sources in the dense-mode region do not participate in MSDP. Note We do not recommend using the ip msdp border sa-address global configuration command. It is better to configure the border router in the sparse-mode domain to proxy-register sources in the dense-mode domain to the RP of the sparse-mode domain and have the sparse-mode domain use standard MSDP procedures to advertise these sources. The ip msdp originator-id global configuration command also identifies an interface to be used as the RP address.
If both the ip msdp border sa-address and the ip msdp originator-id global configuration commands are configured, the address derived from the ip msdp originator-id command specifies the RP address. Follow these steps to configure the border router to send SA messages for sources active in the dense-mode region to the MSDP peers: Procedure Configuring MSDP Including a Bordering PIM Dense-Mode Region in MSDP Command or Action Purpose Step 5 show running-config Example: Device#show running-config Verifies your entries. Step 6 copy running-config startup-config Example: Device#copy running-config startup-config (Optional) Saves your entries in the configuration file.
Command or Action Purpose Step 1 enable Example: Device>enable Enables privileged EXEC mode. • Enter your password if prompted. Step 2 configure terminal Example: Device#configure terminal Enters global configuration mode. Configuring MSDP 21