3com 4500 50-PORT User Manual

C

HAPTER

 7: U

SING

 M

ULTICAST

 P

ROTOCOL

 C

OMMANDS

This section describes how to use the Internet Group Management Protocol 
(IGMP) configuration commands on your Switch 4500.

All views

None

Use the 

 command to view the IGMP 

Snooping configuration information.

This command is used to display the IGMP Snooping configuration information of 
the Switch. The information displayed includes whether IGMP Snooping is 
enabled, router port timeout, maximum response timeout of a query and the 
member port timeout. 

Related command: 

Display the IGMP Snooping configuration information of the Switch. 

<4500>display igmp-snooping configuration

Enable IGMP-Snooping.

The router port timeout is 300 second(s).

The max response timeout is 50 second(s).

The member port timeout is 500 second(s).

The information above tells us that: IGMP Snooping is enabled; the router port 
timer is set to be 300 seconds; the max response timer is set to be 50 seconds; the 
aging timer of multicast group member is set to be 500 seconds.

display igmp-snooping group [ vlan vlan_id ]

All views

 Specifies the VLAN where the multicast group to be viewed is 

located. When the parameter is omitted, the command will display the 
information about all the multicast groups on the VLAN.

Use the 

 command to view the IP multicast groups 

and MAC multicast groups under VLAN.