165
Router C GE1/0/3 10.110.4.1/24
Configuration procedure
1. Assign an IP address and subnet mask to each interface according to Table 14. (Details not
shown.)
2. Configure OSPF on the routers in the ASs. (Details not shown.)
3. Enable IP multicast routing, PIM-SM, and IGMP, and configure PIM-SM domain borders:
# On Router C, enable IP multicast routing.
<RouterC> system-view
[RouterC] multicast routing
[RouterC-mrib] quit
# Enable PIM-SM on each interface, and enable IGMP on the receiver-side interface
GigabitEthernet 1/0/2.
[RouterC] interface gigabitethernet 1/0/1
[RouterC-GigabitEthernet1/0/1] pim sm
[RouterC-GigabitEthernet1/0/1] quit
[RouterC] interface gigabitethernet 1/0/2
[RouterC-GigabitEthernet1/0/2] igmp enable
[RouterC-GigabitEthernet1/0/2] quit
[RouterC] interface gigabitethernet 1/0/3
[RouterC-GigabitEthernet1/0/3] pim sm
[RouterC-GigabitEthernet1/0/3] quit
# Configure Router A, Router B, Router D, Router E, Router F, and Router G in the same way
Router C is configured. (Details not shown.)
# On Router B, configure the PIM domain borders.
[RouterB] interface gigabitethernet 1/0/3
[RouterB-GigabitEthernet1/0/3] pim bsr-boundary
[RouterB-GigabitEthernet1/0/3] quit
# Configure the PIM domain borders on Router C, Router D, and Router F in the same way
Router B is configured. (Details not shown.)
4. Configure C-BSRs and C-RPs:
# On Router A, configure Loopback 0 as a C-BSR and a C-RP.
[RouterA] pim
[RouterA-pim] c-bsr 1.1.1.1
[RouterA-pim] c-rp 1.1.1.1
[RouterA-pim] quit
# Configure C-BSRs and C-RPs on Router D and Router G in the same way Router A is
configured. (Details not shown.)
5. Configure BGP, and redistribute BGP routing information into OSPF and OSPF routing
information into BGP:
# On Router B, configure an EBGP peer, and redistribute OSPF routing information.
[RouterB] bgp 100
[RouterB-bgp] router-id 1.1.1.2
[RouterB-bgp] peer 10.110.3.2 as-number 200
[RouterB-bgp] address-family ipv4 unicast
[RouterB-bgp-ipv4] peer 10.110.3.2 enable
[RouterB-bgp-ipv4] import-route ospf 1