H3C Technologies H3C S12500 Series Switches User Manual

Page 181

Advertising
background image

165

Priority: 192

HoldTime: 150

Advertisement Interval: 60

Next advertisement scheduled at: 00:00:34

# Display the BSR information and the locally configured C-RP information in effect on Switch E.

[SwitchE] 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(Vlan-interface102)

Priority: 192

HoldTime: 150

Advertisement Interval: 60

Next advertisement scheduled at: 00:00:48

# Display the RP information on Switch A.

[SwitchA] 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 the multicast group G 225.1.1.0.
The RP corresponding to the multicast group G is Switch E as a result of hash calculation, so an RPT

will be built between Switch A and Switch E. When the multicast source S 10.110.5.100/24

registers with the RP, an SPT will be built between Switch D and Switch E. After receiving multicast

data, Switch A immediately switches from the RPT to the SPT. Switches on the RPT path (Switch A
and Switch E) have a (*, G) entry, and switches on the SPT path (Switch A and Switch D) have an

(S, G) entry.

Advertising