272 
[RouterC-ospf-1-area-0.0.0.0] network 195.1.1.0 0.0.0.255 
[RouterC-ospf-1-area-0.0.0.0] quit 
[RouterC-ospf-1] quit 
# Configure Router D. 
<RouterD> system-view 
[RouterD] ospf 
[RouterD-ospf] area 0 
[RouterD-ospf-1-area-0.0.0.0] network 194.1.1.0 0.0.0.255 
[RouterD-ospf-1-area-0.0.0.0] network 195.1.1.0 0.0.0.255 
[RouterD-ospf-1-area-0.0.0.0] quit 
[RouterD-ospf-1] quit 
3.  Configure BGP connections: 
# Configure Router A. 
<RouterA> system-view 
[RouterA] bgp 100 
[RouterA-bgp] peer 192.1.1.2 as-number 200 
[RouterA-bgp] peer 193.1.1.2 as-number 200 
[RouterA-bgp] address-family ipv4 unicast 
[RouterA-bgp-ipv4] peer 192.1.1.2 enable 
[RouterA-bgp-ipv4] peer 193.1.1.2 enable 
# Inject network 1.0.0.0/8 into the BGP routing table of Router A. 
[RouterA-bgp-ipv4] network 1.0.0.0 8 
[RouterA-bgp-ipv4] quit 
[RouterA-bgp] quit 
# Configure Router B. 
[RouterB] bgp 200 
[RouterB-bgp] peer 192.1.1.1 as-number 100 
[RouterB-bgp] peer 194.1.1.1 as-number 200 
[RouterB-bgp] address-family ipv4 unicast 
[RouterB-bgp-ipv4] peer 192.1.1.1 enable 
[RouterB-bgp-ipv4] peer 194.1.1.1 enable 
[RouterB-bgp-ipv4] quit 
[RouterB-bgp] quit 
# Configure Router C. 
[RouterC] bgp 200 
[RouterC-bgp] peer 193.1.1.1 as-number 100 
[RouterC-bgp] peer 195.1.1.1 as-number 200 
[RouterC-bgp] address-family ipv4 unicast 
[RouterC-bgp-ipv4] peer 193.1.1.1 enable 
[RouterC-bgp-ipv4] peer 195.1.1.1 enable 
[RouterC-bgp-ipv4] quit 
[RouterC-bgp] quit 
# Configure Router D. 
[RouterD] bgp 200 
[RouterD-bgp] peer 194.1.1.2 as-number 200 
[RouterD-bgp] peer 195.1.1.2 as-number 200 
[RouterD-bgp] address-family ipv4 unicast