127
# Enable IP multicast routing, IGMP, and PIM-DM on Router B and Router C in the same way
Router A is configured. (Details not shown.)
# On Router D, enable IP multicast routing, and enable PIM-DM on each interface.
<RouterD> system-view
[RouterD] multicast routing
[RouterD-mrib] quit
[RouterD] interface gigabitethernet 1/0/1
[RouterD-GigabitEthernet1/0/1] pim dm
[RouterD-GigabitEthernet1/0/1] quit
[RouterD] interface gigabitethernet 1/0/2
[RouterD-GigabitEthernet1/0/2] pim dm
[RouterD-GigabitEthernet1/0/2] quit
[RouterD] interface gigabitethernet 1/0/3
[RouterD-GigabitEthernet1/0/3] pim dm
[RouterD-GigabitEthernet1/0/3] quit
[RouterD] interface gigabitethernet 1/0/4
[RouterD-GigabitEthernet1/0/4] pim dm
[RouterD-GigabitEthernet1/0/4] quit
Verifying the configuration
# Display PIM information on Router D.
[RouterD] display pim interface
Interface NbrCnt HelloInt DR-Pri DR-Address
GE1/0/1 0 30 1 10.110.5.1 (local)
GE1/0/2 1 30 1 192.168.1.2 (local)
GE1/0/3 1 30 1 192.168.2.2 (local)
GE1/0/4 1 30 1 192.168.3.2 (local)
# Display the PIM neighboring relationships on Router D.
[RouterD] display pim neighbor
Total Number of Neighbors = 3
Neighbor Interface Uptime Expires Dr-Priority Mode
192.168.1.1 GE1/0/2 00:02:22 00:01:27 1
192.168.2.1 GE1/0/3 00:00:22 00:01:29 3
192.168.3.1 GE1/0/4 00:00:23 00:01:31 5
# Send an IGMP report from Host A to join multicast group 225.1.1.1. (Details not shown.)
# Send multicast data from multicast source 10.110.5.100/24 to multicast group 225.1.1.1. (Details
not shown.)
# Display the PIM routing table on Router A.
[RouterA] display pim routing-table
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
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