169
Vlan101 1 30 1 192.168.2.2 (local)
Vlan102 1 30 1 192.168.3.2 (local)
# Display the PIM neighboring relationships on Switch D.
[SwitchD] display pim neighbor
VPN-Instance: public net
Total Number of Neighbors = 3
Neighbor Interface Uptime Expires Dr-Priority
192.168.1.1 Vlan103 00:02:22 00:01:27 1
192.168.2.1 Vlan101 00:00:22 00:01:29 3
192.168.3.1 Vlan102 00:00:23 00:01:31 5
Assume that Host A needs to receive the information addressed to multicast group G 225.1.1.1. After
multicast source S 10.110.5.100/24 sends multicast packets to the multicast group G, an SPT is
established through traffic flooding. Switches on the SPT path (Switch A and Switch D) have their (S,
G) entries. Host A sends an IGMP report to Switch A to join the multicast group G, and a (*, G) entry
is generated on Switch A. You can use the
display pim routing-table
command to view the PIM
routing table information on each switch. For example:
# Display PIM routing table information on Switch A.
[SwitchA] display pim routing-table
VPN-Instance: public net
Total 1 (*, G) entry; 1 (S, G) entry
(*, 225.1.1.1)
Protocol: pim-dm, Flag: WC
UpTime: 00:04:25
Upstream interface: NULL
Upstream neighbor: NULL
RPF prime neighbor: NULL
Downstream interface(s) information:
Total number of downstreams: 1
1: Vlan-interface100
Protocol: igmp, UpTime: 00:04:25, Expires: never
(10.110.5.100, 225.1.1.1)
Protocol: pim-dm, Flag: ACT
UpTime: 00:06:14
Upstream interface: Vlan-interface103
Upstream neighbor: 192.168.1.2
RPF prime neighbor: 192.168.1.2
Downstream interface(s) information:
Total number of downstreams: 1
1: Vlan-interface100
Protocol: pim-dm, UpTime: 00:04:25, Expires: never
# Display PIM routing table information on Switch D.
[SwitchD] display pim routing-table
VPN-Instance: public net
Total 0 (*, G) entry; 1 (S, G) entry
