3Com S7906E Command Reference Manual page 1126

If you do not specify interface-type interface-number, this command will display the IGMP multicast
group information on all the interfaces.
If you do not specify the static keyword, this command will display the detailed information about
the dynamically joined IGMP multicast groups.
Examples
# Display the information about dynamically joined IGMP multicast groups on all interfaces in the public
instance.
<Sysname> display igmp group
Total 3 IGMP Group(s).
Interface group report information of VPN-Instance: public net
Vlan-interface1(20.20.20.20):
Total 3 IGMP Groups reported
Group Address
225.1.1.1
225.1.1.3
225.1.1.2
# Display the detailed information of multicast group 225.1.1.1 in the public instance.
<Sysname> display igmp group 225.1.1.1 verbose
Interface group report information of VPN-Instance: public net
Vlan-interface1(10.10.1.20):
Total 1 IGMP Groups reported
Group: 225.1.1.1
Uptime: 00:00:34
Expires: 00:00:40
Last reporter: 10.10.1.10
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
Version1-host-present-timer-expiry: off
Table 1-1 display igmp group command output description
Interface group report information of
VPN-Instance: public net
Total 1 IGMP Groups reported
Group
Uptime
Expires
Last reporter
Last-member-query-counter
Last-member-query-timer-expiry
Last Reporter Uptime
20.20.20.20 00:02:04
20.20.20.20 00:02:04
20.20.20.20 00:02:04
Field
Expires
00:01:15
00:01:15
00:01:17
IGMP multicast group information on a public
network interface
One IGMP multicast group was reported.
Multicast group address
Length of time since the multicast group was
reported
Remaining time of the multicast group, where
"off" means that the multicast group never times
out
Address of the last host that reported its
membership for this multicast group
Number of group-specific queries sent
Remaining time of the last member query timer,
where "off" means that the timer never expires
1-2
Description