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IGMP multicast group information
The following table describes the commands used to display information about IGMP groups learned by
the switch.
Table 36 IGMP Multicast Group commands
Command Usage
show ip igmp groups address <IP
address>
Displays a single IGMP multicast group by its IP address.
Command mode: All except User EXEC
show ip igmp groups vlan <1-4094>
Displays all IGMP multicast groups on a single VLAN.
Command mode: All except User EXEC
show ip igmp groups interface port
<port number>
Displays all IGMP multicast groups on a single port.
Command mode: All except User EXEC
show ip igmp groups portchannel <1-40>
Displays all IGMP multicast groups on a single trunk group.
Command mode: All except User EXEC
show ip igmp groups detail
Displays details about IGMP multicast groups, including
source and timer information.
Command mode: All except User EXEC
show ip igmp groups
Displays information for all multicast groups.
Command mode: All except User EXEC
IGMP group information
The following command displays IGMP group information:
show ip igmp groups
Command mode: All
Note: Local groups (224.0.0.x) are not snooped/relayed and will not appear.
Source Group VLAN Port Version Mode Expires Fwd
-------------- --------------- ------- ------ -------- ----- ------- ---
10.1.1.1 232.1.1.1 2 21 V3 INC 4:16 Yes
10.1.1.5 232.1.1.1 2 21 V3 INC 4:16 Yes
* 232.1.1.1 2 21 V3 INC - No
10.10.10.43 235.0.0.1 9 21 V3 INC 2:26 Yes
* 236.0.0.1 9 21 V3 EXC - Yes
IGMP Group information includes:
• IGMP source address
• IGMP Group address
• VLAN and port
• IGMP version
• IGMPv3 filter mode
• Expiration timer value
• IGMP multicast forwarding state