3Com S7902E Command Reference Manual - page 1131
1-7
mask
: Subnet mask of the multicast group/source address, 255.255.255.255 by default.
mask-length
: Subnet mask length of the multicast group/source address. For a multicast source
address, this argument has an effective value range of 0 to 32; for a multicast group address, this
argument has an effective value range of 4 to 32. The system default is 32 in both cases.
Description
Use the
display igmp routing-table
command to view the IGMP routing table information.
Note that if neither
all-instance
nor
vpn-instance
is specified, this command will display the
information on the public instance.
Examples
# View IGMP routing table information in the public instance.
Routing table of VPN-Instance: public net
Total 2 entries
00001. (*, 225.1.1.1)
List of 1 downstream interface
Vlan-interface1 (20.1.1.1),
Protocol: STATIC
00002. (*, 239.255.255.250)
List of 1 downstream interface
Vlan-interface2 (40.20.20.20),
Protocol: IGMP
Table 1-4 display igmp routing-table
command output description
Field
Description
Routing table of VPN-Instance: public net
Public network IGMP routing table
00001
Sequence number of this (*, G) entry
(*, 225.1.1.1)
A (*, G) entry of the IGMP routing table
List of 1 downstream interface
Downstream interface list, namely the interfaces
to which multicast data for this group will be
forwarded
Protocol Protocol
type
display igmp ssm-mapping
Syntax
display igmp
[
all-instance
|
vpn-instance vpn-instance-name
]
ssm-mapping
group-address
View
Any view