Cisco Systems WSC4500X16SFP Manual De Usuario

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Software Configuration Guide—Release 12.2(25)SG
OL-7659-03
Chapter 17      Configuring IGMP Snooping and Filtering
Displaying IGMP Snooping Information
Displaying Querier Information
To display querier information, perform this task:
This example shows how to display the IGMP snooping querier information for all VLANs on the 
switch:
Switch# show ip igmp snooping querier
Vlan      IP Address     IGMP Version        Port
---------------------------------------------------
2         10.10.10.1     v2                  Router
3         172.20.50.22   v3                  Fa3/15
This example shows how to display the IGMP snooping querier information for VLAN 3:
Switch# show ip igmp snooping querier vlan 3
Vlan      IP Address     IGMP Version        Port
---------------------------------------------------
3         172.20.50.22   v3                  Fa3/15
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:
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 -
Command
Purpose
Switch# show ip igmp snooping querier [vlan 
vlan_ID]
Displays multicast router interfaces.
Command
Purpose
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]
Displays Explicit Host Tracking information.
Note
This command is valid only if EHT is 
enabled on the switch.