Displaying Querier Information; Displaying Igmp Host Membership Information - Cisco 4500M Software Manual

Displaying IGMP Snooping Information

Displaying Querier Information

To display querier information, perform this task:
Command
Switch# show ip igmp snooping querier [vlan
vlan_ID ]
This example shows how to display the IGMP snooping querier information for all VLANs on the
switch:
Switch# show ip igmp snooping querier
Vlan
---------------------------------------------------
2
3
This example shows how to display the IGMP snooping querier information for VLAN 3:
Switch# show ip igmp snooping querier vlan 3
Vlan
---------------------------------------------------
3

Displaying IGMP Host Membership Information

Note By default, EHT maintains a maximum of 1000 entries in the EHT database. Once this limit is reached,
no additional entries are created. To create additional entries, clear the database with the clear ip igmp
snooping membership vlan command.
To display host membership information, perform this task:
Command
Switch# show ip igmp snooping membership
[interface interface_num ][vlan vlan_ID ]
[reporter a.b.c.d ] [source a.b.c.d group
a.b.c.d ]
This example shows how to display host membership information for VLAN 20 and to delete the EHT
database:
Switch# show ip igmp snooping membership vlan 20
#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
40.40.40.3/224.10.10.10 Gi4/2 20.20.2020 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 -
Software Configuration Guide—Release 12.2(25)EW
18-12
IP Address IGMP Version
10.10.10.1 v2
172.20.50.22 v3
IP Address IGMP Version
172.20.50.22 v3
Chapter 18 Configuring IGMP Snooping and Filtering
Purpose
Displays multicast router interfaces.
Port
Router
Fa3/15
Port
Fa3/15
Purpose
Displays Explicit Host Tracking information.
This command is valid only if EHT is
Note
enabled on the switch.
OL-6696-01