93
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
[SwitchC-bgp-ipv4] peer 20.1.1.1 enable
[SwitchC-bgp-ipv4] import-route ospf
[SwitchC-bgp-ipv4] import-route direct
[SwitchC-bgp-ipv4] quit
[SwitchC-bgp] quit
# Execute the display ip routing-table command on each switch to verify that the switches
have learned AS-external routes. Take Switch A as an example:
[SwitchA] display ip routing-table
Destinations : 10 Routes : 10
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
3.3.3.9/32 O_ASE 150 1 10.1.1.2 Vlan1
4.4.4.9/32 O_ASE 150 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
20.1.1.0/24 O_ASE 150 1 10.1.1.2 Vlan1
30.1.1.0/24 O_ASE 150 1 10.1.1.2 Vlan1
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
4. Configure an LSR ID, and enable MPLS, MPLS TE, and RSVP-TE:
# Configure Switch A.
[SwitchA] mpls lsr-id 1.1.1.9
[SwitchA] mpls te
[SwitchA-te] quit
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