[SwitchB-bgp] peer 195.1.1.2 group in
3)
Configure Switch C.
# Configure VLAN interface IP addresses.
<SwitchC> system-view
[SwitchC] interface Vlan-interface 3
[SwitchC-Vlan-interface3] ip address 193.1.1.2 255.255.255.0
[SwitchC-Vlan-interface3] quit
[SwitchC] interface Vlan-interface 5
[SwitchC-Vlan-interface5] ip address 195.1.1.2 255.255.255.0
[SwitchC-Vlan-interface5] quit
# Configure OSPF.
[SwitchC] ospf
[SwitchC-ospf-1] area 0
[SwitchC-ospf-1-area-0.0.0.0] network 193.1.1.0 0.0.0.255
[SwitchC-ospf-1-area-0.0.0.0] network 195.1.1.0 0.0.0.255
[SwitchC-ospf-1-area-0.0.0.0] quit
[SwitchC-ospf-1] quit
# Enable BGP, create a peer group, and add peers to the peer group.
[SwitchC] bgp 200
[SwitchC-bgp] undo synchronization
[SwitchC-bgp] group ex external
[SwitchC-bgp] peer 193.1.1.1 group ex as-number 100
[SwitchC-bgp] group in internal
[SwitchC-bgp] peer 195.1.1.1 group in
[SwitchC-bgp] peer 194.1.1.2 group in
4)
Configure Switch D.
# Configure VLAN interface IP addresses.
<SwitchD> system-view
[SwitchD] interface Vlan-interface 4
[SwitchD-Vlan-interface4] ip address 194.1.1.1 255.255.255.0
[SwitchD-Vlan-interface4] quit
[SwitchD] interface Vlan-interface 5
[SwitchD-Vlan-interface5] ip address 195.1.1.1 255.255.255.0
[SwitchD-Vlan-interface5] quit
# Configure OSPF.
[SwitchD] ospf
[SwitchD-ospf-1] area 0
[SwitchD-ospf-1-area-0.0.0.0] network 194.1.1.0 0.0.0.255
[SwitchD-ospf-1-area-0.0.0.0] network 195.1.1.0 0.0.0.255
[SwitchD-ospf-1-area-0.0.0.0] network 4.0.0.0 0.255.255.255
[SwitchD-ospf-1-area-0.0.0.0] quit
[SwitchD-ospf-1] quit
# Enable BGP, create a peer group, and add peers to the peer group.
[SwitchD] bgp 200
[SwitchD-bgp] undo synchronization
[SwitchD-bgp] group in internal
[SwitchD-bgp] peer 195.1.1.2 group in
[SwitchD-bgp] peer 194.1.1.2 group in
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