163
[RouterB-GigabitEthernet2/1/3] 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
[RouterD-msdp] originating-rp loopback 0
[RouterD-msdp] peer 1.1.1.1 connect-interface loopback 0
[RouterD-msdp] quit
Verifying the configuration
# Display brief information about MSDP peers on Router B.
[RouterB] display msdp brief
Configured Established Listen Connect Shutdown Disabled
1 1 0 0 0 0
Peer address State Up/Down time AS SA count Reset count
2.2.2.2 Established 00:00:13 ? 0 0
# Display brief information about MSDP peers on Router D.
[RouterD] display msdp brief
Configured Established Listen Connect Shutdown Disabled
1 1 0 0 0 0
Peer address State Up/Down time AS SA count Reset count
1.1.1.1 Established 00:00:13 ? 0 0