R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101
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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: 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 multicast group G (225.1.1.0). The RP
corresponding to the multicast group G is Firewall E as a result of hash calculation, so an RPT will be built
between Device A and Firewall E. When the multicast source S (10.110.5.100/24) registers with the RP,
an SPT will be built between Firewall D and Firewall E. Upon receiving multicast data, Device A
immediately switches from the RPT to the SPT. Devices on the RPT path (Device A and Firewall E) have a
(*, G) entry, while devices on the SPT path (Device A and Firewall 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.
[DeviceA] display pim routing-table
VPN-Instance: public net
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