3Com MSR 50 Series Configuration Manual page 1196

1196 C 71: PIM C
HAPTER ONFIGURATION
Assume that Host A needs to receive the information addressed to a multicast
group G (225.1.1.1/24). After the multicast source S (10.110.5.100/24) sends
multicast packets to the multicast group G, an SPT is established through traffic
flooding. Routers on the SPT path (Router A and Router D) have their (S, G)
entries. Host A registers with Router A, and a (*, G) entry is generated on Router
A. You can use the display pim routing-table command to view the PIM routing
table information on each router. For example:
# View the PIM routing table information on Router A.
[RouterA] display pim routing-table
Vpn-instance: public net
Total 1 (*, G) entry; 1 (S, G) entry
(*, 225.1.1.1)
Protocol: pim-dm, Flag: WC
UpTime: 00:04:25
Upstream interface: NULL
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 1
1: Ethernet1/0
Protocol: igmp, UpTime: 00:04:25, Expires: never
(10.110.5.100, 225.1.1.1)
Protocol: pim-dm, Flag: ACT
UpTime: 00:06:14
Upstream interface: Serial2/0,
Upstream neighbor: 192.168.1.2
RPF prime neighbor: 192.168.1.2
Downstream interface(s) information:
Total number of downstreams: 1
1: Ethernet1/0
Protocol: pim-dm, UpTime: 00:04:25, Expires: never
The information on Router B and Router C is similar to that on Router A.
# View the PIM routing table information on Router D.
[RouterD] display pim routing-table
Vpn-instance: public net
Total 0 (*, G) entry; 1 (S, G) entry
(10.110.5.100, 225.1.1.1)
Protocol: pim-dm, Flag: LOC ACT
UpTime: 00:03:27
Upstream interface: Ethernet1/0
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 3
1: Serial2/0
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
2: Pos5/0
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
3: Pos5/1
Protocol: pim-dm, UpTime: 00:03:27, Expires: never