Cisco Systems 3750E Ip pim send-rp-announce interface-id, Scope ttl group-list access-list-number

Chapter 42 Configuring IP Multicast Routing

Configuring IP Multicast Routing

	Command	Purpose
Step 1
	show running-config	Verify that a default RP is already configured on all PIM devices and the
		RP in the sparse-mode network. It was previously configured with the ip
		pim rp-addressglobal configuration command.
		This step is not required for spare-dense-mode environments.
		The selected RP should have good connectivity and be available across
		the network. Use this RP for the global groups (for example 224.x.x.x
		and other global groups). Do not reconfigure the group address range that
		this RP serves. RPs dynamically discovered through Auto-RP take
		precedence over statically configured RPs. Assume that it is desirable to
		use a second RP for the local groups.
Step 2
	configure terminal	Enter global configuration mode.
Step 3
	ip pim send-rp-announce interface-id	Configure another PIM device to be the candidate RP for local groups.
	scope ttl group-listaccess-list-number	• For interface-id, enter the interface type and number that identifies
	interval seconds
		the RP address. Valid interfaces include physical ports, port
		channels, and VLANs.
		• For scope ttl, specify the time-to-live value in hops. Enter a hop
		count that is high enough so that the RP-announce messages reach
		all mapping agents in the network. There is no default setting. The
		range is 1 to 255.
		• For group-listaccess-list-number, enter an IP standard access list
		number from 1 to 99. If no access list is configured, the RP is used
		for all groups.
		• For interval seconds, specify how often the announcement messages
		must be sent. The default is 60 seconds. The range is 1 to 16383.
Step 4
	access-listaccess-list-number {deny	Create a standard access list, repeating the command as many times as
	permit} source [source-wildcard]	necessary.
		• For access-list-number, enter the access list number specified in
		Step 3.
		• The deny keyword denies access if the conditions are matched. The
		permit keyword permits access if the conditions are matched.
		• For source, enter the multicast group address range for which the RP
		should be used.
		• (Optional) For source-wildcard, enter the wildcard bits in dotted
		decimal notation to be applied to the source. Place ones in the bit
		positions that you want to ignore.
		Recall that the access list is always terminated by an implicit deny
		statement for everything.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		42-17