Command:

cgmp


Mode:

Switch(config)#


Syntax:

cgmp [leave-processing | holdtime time]

no cgmp [leave-processing | holdtime]

 

Syntax Description:

holdtime

(Optional) Set the amount of time a router connection is retained before the switch ceases to exchange messages with it

time

Number of seconds a router connection is retained before the switch ceases to exchange messages with it. You can enter a number from 10 to 6000 (seconds).

leave-processing

(Optional) Enable Fast Leave processing on the switch

 


Command Description:

Use the cgmp global configuration command to enable Cisco Group Management Protocol (CGMP). You can also enable and disable the Fast Leave parameter and set the router port aging time. Use the no form of this command to disable CGMP. By default CGMP is enabled and Fast Leave is disabled. The default holdtime is 300 seconds. 

Usage Guidelines:

CGMP must be enabled before the Fast Leave option can be enabled. Fast Leave processing optimizes the use of network bandwidth by reducing the delay between members of a multicast group leaving the group and the actual pruning of multicast traffic to that segment.


Example:

This example shows how to enable CGMP on a switch:

Switch(config)#cgmp
The following command enables CGMP Fast Leave processing: 
Switch(config)#cgmp leave-processing


Misconceptions:

 

None


Related Commands:

 

show cgmp

 


� Cisco Systems, Inc. 2001, 2002, 2003
World Wide Education

Converted from CHM to HTML with chm2web Pro 2.85 (unicode)