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H3C Technologies H3C SecPath F1000-E User Manual

Page 663

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Priority: 192

HoldTime: 150

Uptime: 00:51:45

Expires: 00:02:22

RP: 192.168.9.2

Priority: 192

HoldTime: 150

Uptime: 00:51:45

Expires: 00:02:22

Assume that Host A needs to receive information addressed to multicast group G (225.1.1.0). The

RP corresponding to the multicast group G is SecPath C as a result of hash calculation, so an RPT

will be built between SecPath A and SecPath C. When the multicast source S (10.110.5.100/24)
registers with the RP, an SPT will be built between SecPath B and SecPath C. After receiving

multicast data, SecPath A immediately switches from the RPT to the SPT. Firewalls on the RPT path

(SecPath A and SecPath C) have a (*, G) entry, and firewalls on the SPT path (SecPath A and

SecPath B) have an (S, G) entry. You can use the display pim routing-table command to display the
PIM routing table information on the firewalls. For example:
# Display PIM routing table information on SecPath A.

[SecPathA] display pim routing-table

Total 1 (*, G) entry; 1 (S, G) entry

(*, 225.1.1.0)

RP: 192.168.9.2

Protocol: pim-sm, Flag: WC

UpTime: 00:13:46

Upstream interface: GigabitEthernet0/2

Upstream neighbor: 192.168.9.2

RPF prime neighbor: 192.168.9.2

Downstream interface(s) information:

Total number of downstreams: 1

1: GigabitEthernet0/1

Protocol: igmp, UpTime: 00:13:46, Expires: 00:03:06

(10.110.5.100, 225.1.1.0)

RP: 192.168.9.2

Protocol: pim-sm, Flag: SPT ACT

UpTime: 00:00:42

Upstream interface: GigabitEthernet0/3

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-sm, UpTime: 00:00:42, Expires: 00:03:06

# Display PIM routing table information on SecPath B.

[SecPathB] display pim routing-table