18-13
Software Configuration Guide—Release 12.2(25)EW
OL-6696-01
Chapter 18 Configuring IGMP Snooping and Filtering
Displaying IGMP Snooping Information
40.40.40.5/224.10.10.10Fa2/1 20.20.20.20 00:39:42 00:09:17 -
40.40.40.6/224.10.10.10 Fa2/1 20.20.20.20 00:09:47 00:09:17 -
Switch# clear ip igmp snooping membership vlan 20
This example shows how to display host membership for interface gi4/1:
Switch# show ip igmp snooping membership interface gi4/1
#channels: 5
#hosts : 1
Source/Group Interface Reporter Uptime Last-Join Last-Leave
40.40.40.2/224.10.10.10 Gi4/1 20.20.20.20 00:23:37 00:06:50 00:20:30
40.40.40.4/224.10.10.10Gi4/1 20.20.20.20 00:39:42 00:09:17 -
This example shows how to display host membership for VLAN 20 and group 224.10.10.10:
Switch# show ip igmp snooping membership vlan 20 source 40.40.40.2 group 224.10.10.10
#channels: 5
#hosts : 1
Source/Group Interface Reporter Uptime Last-Join Last-Leave
40.40.40.2/224.10.10.10 Gi4/1 20.20.20.20 00:23:37 00:06:50 00:20:30
Displaying Group Information
To display detailed IGMPv3 information associated with a group, perform one of the following tasks:
Command Purpose
Switch# show ip igmp snooping groups [vlan
vlan_ID
]
Displays groups, the type of reports that were
received for the group (Host Type), and the list of
ports on which reports were received.
The report list includes neither the multicast router
ports nor the complete forwarding port set for the
group. Rather, it lists the ports on which the
reports have been received.
To display the complete forwarding port set for the
group, display the CLI output for the MAC
address that maps to this group by using the
show mac-address-table multicast command.
Switch# show ip igmp snooping groups [vlan
vlan_ID a.b.c.d
] [summary|sources|hosts]
Displays information specific to a group address,
providing details about the current state of the
group with respect to sources and hosts.
Note This command applies only to full
IGMPv3 snooping support and can be used
for IGMPv1, IGMPv2, or IGMPv3 groups.
Switch# show ip igmp snooping groups [vlan
vlan_ID
]
[count]
Displays the total number of group addresses
learned by the system on a global or per-VLAN
basis.
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