This command displays the Source and Group IP addresses along with their corresponding MAC addresses that are learned through IGMP Snooping on a given VLAN on a given interface.
| Format | show igmpsnooping group [vlan-id | interface (unit/slot/port) | lag lag-id] |
| Mode | Privileged EXEC |
This command lists a table that is separate from the show mac-address-table multicast command output. That command displays information that is stored into the hardware MFDB table.
The information displayed in the show igmpsnooping group command output table is for you to be able to identify the entries based on IP address information. For example, which Multicast Group address has been registered from which source IP address on which VLAN and on which interface.
The command works this way:
- When a VLAN is specified, the command lists all the entries that are learned on that VLAN across switch ports.
- When an interface is specified, the command lists all the entries that are learned on that particular interface.
- When a LAG ID is specified, the command lists all the entries that are learned on that LAG interface.
- When neither VLAN nor interface is specified, the command lists all the entries across all VLANs and all interfaces that are learned through IGMP Snooping.
Example: The following shows example CLI display output for the command without any argument.
(Switching)#show igmpsnooping group
VLAN ID Subscriber MC Group Interface Type Timeout(Sec)
------- --------------------------------- -------------------------------- --------- ------ --------
1 1.1.1.6/00:00:00:00:00:06 224.1.1.6/01:00:5E:01:01:06 1/0/16 IGMPv2 252
1 1.1.1.8/00:00:00:00:00:08 224.1.1.6/01:00:5E:01:01:06 1/0/18 IGMPv2 256
1.1.9/00:00:00:00:00:09
1.1.10/00:00:00:00:00:0A
1.1.11/00:00:00:00:00:0B
1.1.12/00:00:00:00:00:0C
1 1.1.1.9/00:00:00:00:00:09 224.1.1.7/01:00:5E:01:01:07 1/0/18 IGMPv2 181
1 1.1.1.10/00:00:00:00:00:0A 224.1.1.8/01:00:5E:01:01:08 1/0/18 IGMPv2 182
1 1.1.1.11/00:00:00:00:00:0B 224.1.1.9/01:00:5E:01:01:09 1/0/18 IGMPv2 183
1 1.1.1.12/00:00:00:00:00:0C 224.1.1.10/01:00:5E:01:01:0A 1/0/18 IGMPv2 184
