3Com MSR 50 Series Configuration Manual page 1153

You can use the display msdp brief command to view the brief information of
MSDP peering relationships between the routers.
# View the brief MSDP peer information on Router B.
[RouterB] display msdp brief
MSDP Peer Brief Information of VPN-Instance: public net
Configured Up
1 1
Peer's Address State
2.2.2.2 Up
# View the brief MSDP peer information on Router D.
[RouterD] display msdp brief
MSDP Peer Brief Information of VPN-Instance: public net
Configured Up
1 1
Peer's Address State
1.1.1.1 Up
To view the PIM routing information on each router, use the display pim
routing-table command.
When Source 1 (10.110.5.100/24) sends multicast data to multicast group G
(225.1.1.1/24), Receiver 1 joins multicast group G. By comparing the PIM routing
information displayed on Router B with that displayed on Router D, you can see
that Router B acts now as the RP for Source 1 and Receiver 1.
# View the PIM routing information on Router B.
[RouterB] display pim routing-table
Vpn-instance: public net
Total 1 (*, G) entry; 1 (S, G) entry
(*, 225.1.1.1)
RP: 10.1.1.1 (local)
Protocol: pim-sm, Flag: WC
UpTime: 00:15:04
Upstream interface: Register
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 1
1: Ethernet1/0
Protocol: igmp, UpTime: 00:15:04, Expires: -
(10.110.5.100, 225.1.1.1)
RP: 10.1.1.1 (local)
Protocol: pim-sm, Flag: SPT 2MSDP ACT
UpTime: 00:46:28
Upstream interface: Serial2/0
Upstream neighbor: 10.110.2.2
RPF prime neighbor: 10.110.2.2
Downstream interface(s) information:
Total number of downstreams: 1
MSDP Configuration Examples
Listen Connect
0 0
Up/Down time AS
00:10:17 ?
Listen Connect
0 0
Up/Down time AS
00:10:18 ?
1153
Shutdown Down
0 0
SA Count Reset Count
0 0
Shutdown Down
0 0
SA Count Reset Count
0 0