Cisco Systems 3750E manual Including a Bordering PIM Dense-Mode Region in Msdp, 43-17

Chapter 43 Configuring MSDP

Configuring MSDP

Beginning in privileged EXEC mode, follow these steps to shut down a peer. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2 ip msdp shutdown {peer-namepeer		Administratively shut down the specified MSDP peer without losing
	address}	configuration information.
		For peer-name peer address, enter the IP address or name of the MSDP
		peer to shut down.
Step 3
	end	Return to privileged EXEC mode.
Step 4
	show running-config	Verify your entries.
Step 5
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To bring the peer back up, use the no ip msdp shutdown {peer-name peer address} global configuration command. The TCP connection is reestablished

Including a Bordering PIM Dense-Mode Region in MSDP

You can configure MSDP on a switch 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-addressglobal 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.

Beginning in privileged EXEC mode, follow these steps to configure the border router to send SA messages for sources active in the dense-mode region to the MSDP peers. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	ip msdp border sa-address interface-id	Configure the switch on the border between a dense-mode and
		sparse-mode region to send SA messages about active sources in the
		dense-mode region.
		For interface-id, specify the interface from which the IP address is
		derived and used as the RP address in SA messages.
		The IP address of the interface is used as the Originator-ID, which is the
		RP field in the SA message.
Step 3
	ip msdp redistribute [list	Configure which (S,G) entries from the multicast routing table are
	access-list-name] [asn	advertised in SA messages.
	aspath-access-list-number][route-map	For more information, see the “Redistributing Sources” section on
	map]
		page 43-9.
Step 4
	end	Return to privileged EXEC mode.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		43-17