Reference Guide
• For a 40-Gigabit Ethernet interface, enter the keyword 
fortyGigE then the slot/port information.
• For a VLAN interface enter the keyword vlan then a number 
from 1 to 4094.
detail (OPTIONAL) Enter the keyword detail to display the IGMPv3 
source information.
Command Modes
• EXEC
• EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the 
relevant 
FTOS Command Line Reference Guide
.
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series and C-Series.
Version 7.5.1.0 Expanded to support the detail option.
E-Series legacy 
command.
Usage 
Information
This command displays the IGMP database, including configured entries for either all groups 
on all interfaces, all groups on specific interfaces, or specific groups on specific interfaces.
The following describes the show ip igmp groups command shown in the following 
example.
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.
Example
FTOS#show ip igmp groups
Total Number of Groups: 5
IGMP Connected Group Membership
Group Address Interface Mode Uptime Expires Last Reporter
555










