H3C Technologies H3C SecPath F1000-E User Manual

Page 138

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# View the BSR information and the locally configured C-RP information in effect on Device E.

[DeviceE] display pim bsr-info

VPN-Instance: public net

Elected BSR Address: 192.168.9.2

Priority: 20

Hash mask length: 32

State: Elected

Scope: Not scoped

Uptime: 00:01:18

Next BSR message scheduled at: 00:01:52

Candidate BSR Address: 192.168.9.2

Priority: 20

Hash mask length: 32

State: Elected

Scope: Not scoped

Candidate RP: 192.168.9.2(GigabitEthernet3/2)

Priority: 192

HoldTime: 150

Advertisement Interval: 60

Next advertisement scheduled at: 00:00:48

To view the RP information discovered on a device, use the display pim rp-info command. For

example:
# View the RP information on Device A.

[DeviceA] display pim rp-info

VPN-Instance: public net

PIM-SM BSR RP information:

Group/MaskLen: 225.1.1.0/24

RP: 192.168.4.2

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 Device E as a result of hash calculation, so an RPT will be built

between Device A and Device E. When the multicast source S (10.110.5.100/24) registers with the RP, an

SPT will be built between Device D and Device E. Upon receiving multicast data, Device A immediately

switches from the RPT to the SPT. The devices on the RPT path (Device A and Device E) have a (*, G) entry,

while the devices on the SPT path (Device A and Device D) have an (S, G) entry. You can use the
display pim routing-table command to view the PIM routing table information on the devices. For
example:
# View the PIM routing table information on Device A.

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