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Configuration procedure
1. Assign an IP address and subnet mask to each interface according to Figure 55. (Details not
shown.)
2. Configure OSPF on the routers in the PIM-SM domain. (Details not shown.)
3. Enable IP multicast routing, IGMP, and PIM-SM:
# On Router B, enable IP multicast routing.
<RouterB> system-view
[RouterB] multicast routing
[RouterB-mrib] quit
# Enable IGMP on the receiver-side interface (GigabitEthernet 1/0/1).
[RouterB] interface gigabitethernet 1/0/1
[RouterB-GigabitEthernet1/0/1] igmp enable
[RouterB-GigabitEthernet1/0/1] quit
# Enable PIM-SM on the other interfaces.
[RouterB] interface gigabitethernet 1/0/2
[RouterB-GigabitEthernet1/0/2] pim sm
[RouterB-GigabitEthernet1/0/2] quit
[RouterB] interface gigabitethernet 1/0/3
[RouterB-GigabitEthernet1/0/3] pim sm
[RouterB-GigabitEthernet1/0/3] quit
[RouterB] interface loopback 0
[RouterB-LoopBack0] pim sm
[RouterB-LoopBack0] quit
[RouterB] interface loopback 10
[RouterB-LoopBack10] pim sm
[RouterB-LoopBack10] quit
[RouterB] interface loopback 20
[RouterB-LoopBack20] pim sm
[RouterB-LoopBack20] quit
# Enable IP multicast routing, IGMP, and PIM-SM on Router A, Router C, Router D, and Router
E in the same way Router B is configured. (Details not shown.)
4. Configure C-BSRs and C-RPs:
# On Router B, configure Loopback 10 as a C-BSR and configure Loopback 20 as a C-RP.
[RouterB] pim
[RouterB-pim] c-bsr 3.3.3.3
[RouterB-pim] c-rp 10.1.1.1
[RouterB-pim] quit
# Configure a C-BSR and a C-RP on Router D in the same way Router B is configured. (Details
not shown.)
5. Configure MSDP peers:
# Configure an MSDP peer on Loopback 0 of Router B.
[RouterB] msdp
[RouterB-msdp] originating-rp loopback 0
[RouterB-msdp] peer 2.2.2.2 connect-interface loopback 0
[RouterB-msdp] quit
# Configure an MSDP peer on Loopback 0 of Router D.
[RouterD] msdp
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