ip igmp snooping fastlearn

Description

Enables the port to learn group information when receiving a topology change notification. By default, fast learn is not enabled on ports.

The no form of this command unconfigures fast learn on the specified ports.

Command context

config

Parameters

fastlearn <PORT-LIST>

Specifies a list of one or more ports to be configured as fast learn ports. You can specify a single port, a comma-separated list of ports or a range of ports such as 1/1/1-1/1/3. You may also enter an L2 LAG (1-128).

Authority

Administrators

Examples

Configuring ports as fast learn ports:

switch# configure terminal
switch(config)# ip igmp snooping fastlearn 1/1/3
switch(config)# ip igmp snooping fastlearn 1/1/1-1/1/2
switch(config)# ip igmp snooping fastlearn 1/1/5,1/1/6