3Com 8807 Command Reference Manual page 589

Parameter
vlan vlan-id: Specifies the VLAN the desired multicast group information resides
in. If this key word and argument combination is not provided the command
displays the information of all the multicast groups in the VLAN.
ip-address: IP address of the desired multicast group.
Description
Use the display mpm group command to display the information about the IP
multicast groups or MAC multicast groups in a specified VLAN. If you do not
specify the vlan-id argument, this command displays the information about
multicast groups in all VLANs.
The information displayed contains the following fields:
VLAN ID
■
Router port
■
IP multicast group
■
IP multicast group address
■
Member port of IP multicast group
■
MAC multicast group
■
MAC multicast group address
■
Member port of MAC multicast group
■
c
CAUTION:
The information displayed by this command includes that displayed by the
■
display igmp group command and port information.
The information displayed by this command is the same as that displayed by
■
the display igmp-snooping group command except the VLAN properties.
The display igmp-snooping group command displays the information about
the ports that join Layer 2 multicast groups in VLANs that have the
IGMP-snooping function enabled. The display mpm group command displays
the information about the ports that join Layer 3 multicast groups in VLANs
that have the IGMP function enabled.
Example
# Display the multicast group information about VLAN 2.
<SW8800> display mpm group vlan 2
Vlan(id):2.
Router port(s):Ethernet2/1/1
IP group(s):the following ip group(s) match to one mac group.
IP group address:230.45.45.1
Member port(s):Ethernet2/1/2
MAC group(s):
MAC group address:01-00-5e-2d-2d-01
Member port(s):Ethernet2/1/2
Multicast Common Configuration Commands 587