Reference Guide
590 | Internet Group Management Protocol (IGMP)
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Example
(VLT Port
Channel Down)
Note: The asterisk (*) after the port channel number (Po 2) highlighted in the example below 
indicates the port channel is VLT, that the local VLT port channel is down and the remote VLT 
port is up.
FTOS#show ip igmp groups
Total Number of Groups: 5
IGMP Connected Group Membership
Group Address Interface  Mode  Uptime Expires  Last Reporter
225.0.0.0  Vlan 100  IGMPv2 00:00:05 00:02:04 3.0.0.51
 Member Ports: Po 2*
225.0.0.1  Vlan 100  IGMPv2 00:00:05 00:02:04 3.0.0.51
 Member Ports: Po 2*
225.0.0.2  Vlan 100  IGMPv2 00:00:05 00:02:04 3.0.0.51
 Member Ports: Po 2*
225.0.0.3  Vlan 100  IGMPv2 00:00:05 00:02:04 3.0.0.51
 Member Ports: Po 2*
225.0.0.4  Vlan 100  IGMPv2 00:00:05 00:02:04 3.0.0.51
 Member Ports: Po 2*
show ip igmp interface 
c e s
View information on the interfaces participating in IGMP.
Syntax
show ip igmp interface
 [interface] 
Table 22-1. show ip igmp groups Command Example Fields 
Field Description
Group Address Lists the multicast address for the IGMP group.
Interface Lists the interface type, slot and port number.
Mode Displays the IGMP version used. 
Uptime Displays the amount of time the group has been operational.
Expires Displays the amount of time until the entry expires.
Last Reporter Displays the IP address of the last host to be a member of the 
IGMP group.
Member Ports Indicates the port channel. If the port channel is VLT, an asterisk 
(*) after the port channel number indicates the port channel is 
locally down and that a remote VLT port is up. 










