3com 4500 PWR 26-PORT User Manual

This command displays the IP multicast group and MAC multicast group 
information of a VLAN or all the VLAN where the Ethernet Switch is located. It 
displays the information such as VLAN ID, router port, IP multicast group address, 
member ports in the IP multicast group, MAC multicast group, MAC multicast 
group address, and the member ports in the MAC multicast group.

Display the multicast group information about VLAN2. 

<4500>display igmp-snooping group vlan 2

***************Multicast group table***************

Vlan(id):2.

Router port(s):Ethernet1/0/1

IP group(s):the following ip group(s) match to one mac group.

IP group address:230.45.45.1

Member port(s):Ethernet1/0/2

MAC group(s):

MAC group address:01-00-5e-2d-2d-01

Member port(s):Ethernet1/0/2

The display above shows that:

■

There is a multicast group in VLAN 2; 

■

The router port is Ethernet 1/0/1;

■

The address of the multicast group is 230.45.45.1;

■

The member of the IP multicast group is Ethernet 1/0/2;

■

MAC multicast group is 0100-5e2d-2d01;

■

The member of the MAC multicast group is Ethernet 1/0/2

All views

None

Use the 

 command to view the statistics 

information on IGMP Snooping.

This command displays the statistics information about IGMP Snooping of the 
Ethernet Switch. It displays the information such as number of received general 
IGMP query packets, received IGMP specific query packets, received IGMP Version 
1 and Version 2 report packets, received IGMP leave packets and error packets, 
and sent IGMP specific query packets.

Related command: 

.

Display statistics information about IGMP Snooping.