1-43
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: 0
HoldTime: 150
Advertisement Interval: 60
Next advertisement scheduled at: 00:00:48
To view the RP information discovered on a switch, use the
display pim rp-info
command. For
example:
# View the RP information on Switch A.
[SwitchA] display pim rp-info
PIM-SM BSR RP information:
Group/MaskLen: 225.1.1.0/24
RP: 192.168.4.2
Priority: 0
HoldTime: 150
Uptime: 00:51:45
Expires: 00:02:22
RP: 192.168.9.2
Priority: 0
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. Upon 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, while switches on the SPT path (Switch A and Switch D) have an (S, G) entry. You can use
the
display pim routing-table
command to view the PIM routing table information on the switches. For
example:
# View the PIM routing table information on Switch A.
[SwitchA] display pim routing-table
Total 1 (*, G) entry; 1 (S, G) entry
(*, 225.1.1.0)
