H3C Technologies H3C S6800 Series Switches - Manual (Page 109)

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# Configure Switch C.
<SwitchC> system-view
[SwitchC] ospf
[SwitchC-ospf-1] import-route direct
[SwitchC-ospf-1] import-route bgp
[SwitchC-ospf-1] area 0
[SwitchC-ospf-1-area-0.0.0.0] network 30.1.1.0 0.0.0.255
[SwitchC-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0
[SwitchC-ospf-1-area-0.0.0.0] quit
[SwitchC-ospf-1] quit
# Configure Switch D.
<SwitchD> system-view
[SwitchD] ospf
[SwitchD-ospf-1] area 0
[SwitchD-ospf-1-area-0.0.0.0] network 30.1.1.0 0.0.0.255
[SwitchD-ospf-1-area-0.0.0.0] network 4.4.4.9 0.0.0.0
[SwitchD-ospf-1-area-0.0.0.0] quit
[SwitchD-ospf-1] quit
# Execute the display ip routing-table command on each switch to verify that the switches have
learned the routes to one another, including the routes to the loopback interfaces. Take Switch A
as an example:
[SwitchA] display ip routing-table
Destinations : 6 Routes : 6
Destination/Mask Proto Pre Cost NextHop Interface
1.1.1.9/32 Direct 0 0 127.0.0.1 InLoop0
2.2.2.9/32 OSPF 10 1 10.1.1.2 Vlan1
10.1.1.0/24 Direct 0 0 10.1.1.1 Vlan1
10.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
3. Configure BGP on Switch B and Switch C to make sure the ASs can communicate with each other:
# Configure Switch B.
[SwitchB] bgp 100
[SwitchB-bgp] peer 20.1.1.2 as-number 200
[SwitchB-bgp] address-family ipv4 unicast
[SwitchB-bgp-ipv4] peer 20.1.1.2 enable
[SwitchB-bgp-ipv4] import-route ospf
[SwitchB-bgp-ipv4] import-route direct
[SwitchB-bgp-ipv4] quit
[SwitchB-bgp] quit
# Configure Switch C.
[SwitchC] bgp 200
[SwitchC-bgp] peer 20.1.1.1 as-number 100
[SwitchC-bgp] address-family ipv4 unicast