3Com 8807 - Display Multicast Forwarding-Table

588 CHAPTER 33: MULTICAST COMMON CONFIGURATION COMMANDS
display multicast
forwarding-table
Syntax
display multicast forwarding-table [ group-address [ mask { mask |
mask-length } ] | source-address [ mask { mask | mask-length } ] |
incoming-interface{ interface-type interface-number | null NULL-interface-
number | register} ] *
View
Any view
Parameter
group-address: Multicast group address, used to specify a multicast group,
ranging from 224.0.0.0 to 239.255.255.255.
source-address: Unicast IP address of the multicast source.
incoming-interface: Incoming interface of the multicast forwarding table entry.
interface-type interface-number: Interface type and interface number.
null: Incoming-interface is null.
NULL-interface-number: The only number is 0.
register: Register interface of PIM-SM.
Description
Use the display multicast forwarding-table command to view the information
of multicast forwarding table.
c
CAUTION: You must use multicast routing-enable command in system view to
enable IP multicast routing before you can view the multicast forwarding table
information.
Related command: display multicast routing-table.
Tabl e 81 Description on the fields of the display mpm group command
Field Description
Vlan(id):2. The output information is about VLAN 2.
Router port(s):Ethernet2/1/1 The router port concerned is Ethernet2/1/1.
IP group(s):the following ip group(s)
match to one mac group.
Lists the IP multicast groups matching the same MAC
multicast group.
IP group address:230.45.45.1 The IP address of the IP multicast group is
230.45.45.1.
Member port(s):Ethernet2/1/2 Ethernet2/1/2 port is a member port of the IP
multicast group.
MAC group
address:01-00-5e-2d-2d-01
The MAC address of the MAC multicast group is
01-00-5e-2d-2d-01.
Member port(s):Ethernet2/1/2 Ethernet2/1/2 port is a member port of the MAC
multicast group.