54
Figure 20 Network diagram
Configuration procedure
1. Assign an IP address and subnet mask for each interface, as shown in Figure 20. (Details not
shown.)
2. Configure OSPF on Router B and Router C. (Details not shown.)
3. Enable IP multicast routing, and enable IGMP and PIM-DM:
# On Router C, enable IP multicast routing.
<RouterC> system-view
[RouterC] multicast routing
[RouterC-mrib] quit
# Enable IGMP on the receiver-side interface (GigabitEthernet 1/0/1).
[RouterC] interface gigabitethernet 1/0/1
[RouterC-GigabitEthernet1/0/1] igmp enable
[RouterC-GigabitEthernet1/0/1] quit
# Enable PIM-DM on GigabitEthernet 1/0/2.
[RouterC] interface gigabitethernet 1/0/2
[RouterC-GigabitEthernet1/0/2] pim dm
[RouterC-GigabitEthernet1/0/2] quit
# On Router A, enable IP multicast routing.
<RouterA> system-view
[RouterA] multicast routing
[RouterA-mrib] quit
# Enable PIM-DM on each interface.
[RouterA] interface gigabitethernet 1/0/1
[RouterA-GigabitEthernet1/0/1] pim dm
[RouterA-GigabitEthernet1/0/1] quit
[RouterA] interface gigabitethernet 1/0/2
[RouterA-GigabitEthernet1/0/2] pim dm
[RouterA-GigabitEthernet1/0/2] quit
# Enable IP multicast routing and PIM-DM on Router B in the same way Router A is configured.
(Details not shown.)
4. Display RPF information for Source 2 on Router B and Router C.
Router A Router B Router C
GE1/0/2
30.1.1.2/24
GE1/0/2
20.1.1.2/24
GE1/0/2
20.1.1.1/24
GE1/0/3
30.1.1.1/24
Source 1Source 2 Receiver
40.1.1.100/24 10.1.1.100/24
Multicast static route
GE1/0/1
40.1.1.1/24
GE1/0/1
10.1.1.1/24
OSPF domain
PIM-DM
50.1.1.100/24
GE1/0/1
50.1.1.1/24