3com MSR 20-20 참조 매뉴얼

display igmp [ vpn-instance vpn-instance-name | all-instance ] group 
[ group-address | interface interface-type interface-number ] [ static | verbose ]

Any view

vpn-instance-name: VPN instance name, a case sensitive string of up to 31 
characters.

all-instance: Specifies all VPN instances.

group-address: Multicast group address, in the range of 224.0.1.0 to 
239.255.255.255.

interface interface-type interface-number: Displays the IGMP multicast group 
information about a particular interface.

static: Displays the information of statically joined IGMP multicast groups.

verbose: Displays the detailed information of IGMP multicast groups.

Use the display igmp group command to view IGMP multicast group 
information.

Note that:

■

If you do not specify group-address, this command will display the IGMP 
information of all the multicast groups.

■

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.

# 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

Ethernet1/0(20.20.20.20):

Total 3 IGMP Groups reported