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Router C Loop0 2.2.2.2/32
Configuration procedure
1. Assign an IP address and subnet mask to each interface according to Figure 53. (Details not
shown.)
2. Configure OSPF on the routers in the ASs. (Details not shown.)
3. Enable IP multicast routing, enable PIM-SM and IGMP, and configure a PIM-SM domain
border:
# On Router A, enable IP multicast routing.
<RouterA> system-view
[RouterA] multicast routing
[RouterA-mrib] quit
# Enable PIM-SM on GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.
[RouterA] interface gigabitethernet 1/0/1
[RouterA-GigabitEthernet1/0/1] pim sm
[RouterA-GigabitEthernet1/0/1] quit
[RouterA] interface gigabitethernet 1/0/2
[RouterA-GigabitEthernet1/0/2] pim sm
[RouterA-GigabitEthernet1/0/2] quit
# Enable IGMP on the receiver-side interface (GigabitEthernet 1/0/3).
[RouterA] interface gigabitethernet 1/0/3
[RouterA-GigabitEthernet1/0/3] igmp enable
[RouterA-GigabitEthernet1/0/3] quit
# Enable IP multicast routing, PIM-SM, and IGMP on Router B, Router C, Router D, Router E,
and Router F in the same way Router A is configured. (Details not shown.)
# Configure a PIM domain border on Router B.
[RouterB] interface gigabitethernet 1/0/2
[RouterB-GigabitEthernet1/0/2] pim bsr-boundary
[RouterB-GigabitEthernet1/0/2] quit
# Configure a PIM domain border separately on Router C and Router E in the same way Router
B is configured. (Details not shown.)
4. Configure C-BSRs and C-RPs:
# Configure Loopback 0 on Router B as a C-BSR and a C-RP.
[RouterB] pim
[RouterB-pim] c-bsr 1.1.1.1
[RouterB-pim] c-rp 1.1.1.1
[RouterB-pim] quit
# Configure C-BSRs and C-RPs on Router C and Router E in the same way Router B is
configured. (Details not shown.)
5. Configure BGP for mutual route redistribution between BGP and OSPF:
# On Router B, configure an EBGP peer and redistribute OSPF routes.
[RouterB] bgp 100
[RouterB-bgp] router-id 1.1.1.1
[RouterB-bgp] peer 192.168.1.2 as-number 200
[RouterB-bgp] address-family ipv4
[RouterB-bgp-ipv4] import-route ospf 1
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