H3C Technologies H3C SecPath F1000-E User Manual
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Assume that Host A needs to receive the information addressed to multicast group G (225.1.1.1).
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 and the firewall on the SPT path (Router A
and SecPath in this example) have their (S, G) entries. Host A sends an IGMP report to Router A to
join the multicast group G, and a (*, G) entry is generated on Router A. You can use the display
pim routing-table command to display PIM routing table information on routers and the firewall.
For example:
# Display PIM routing table information on Router A.
[RouterA] display pim routing-table
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: GigabitEthernet0/1
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: GigabitEthernet0/2
Upstream neighbor: 192.168.1.2
RPF prime neighbor: 192.168.1.2
Downstream interface(s) information:
Total number of downstreams: 1
1: GigabitEthernet0/1
Protocol: pim-dm, UpTime: 00:04:25, Expires: never
# Display PIM routing table information on SecPath.
[SecPath] display pim routing-table
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: GigabitEthernet0/1
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 3
1: GigabitEthernet0/2
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
2: GigabitEthernet0/3
Protocol: pim-dm, UpTime: 00:03:27, Expires: never
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