Cisco Aironet 1400 Series Specification Sheet - Page 14
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OSPF Sham-Link Support for MPLS VPN
area sham-link cost
Examples
The following example shows how to configure a sham-link between two PE routers in an MPLS VPN
backbone by using the area sham-link cost command on each router:
Router1(config)# interface loopback 55
Router1(config-if)# ip vrf forwarding v1
Router1(config-if)# ip address 10.0.0.1 255.255.255.255
!
Router1(config)# router ospf 2 vrf v1
Router1(config-if)# log-adjacency-changes
Router1(config-if)# area 120 sham-link 10.0.0.1 10.44.0.1 cost 1
Router1(config-if)# redistribute bgp 1 subnets
Router1(config-if)# network 10.2.0.1 255.255.255.255 area 1
Router1(config-if)# network 10.120.0.0 0.255.255.255 area 120
Router1(config-if)# network 10.140.0.0 0.255.255.255 area 120
!
Router2(config)# interface loopback 44
Router2(config-if)# ip vrf forwarding v1
Router2(config-if)# ip address 44.0.0.1 255.255.255.255
!
Router2(config)# router ospf 2 vrf v1
Router2(config-if)# log-adjacency-changes
Router2(config-if)# area 120 sham-link 10.44.0.1 10.0.0.1 cost 1
Router2(config-if)# redistribute bgp 1 subnets
Router2(config-if)# network 10.2.0.1 255.255.255.255 area 1
Router2(config-if)# network 10.120.0.0 0.255.255.255 area 120
Router2(config-if)# network 10.140.0.0 0.255.255.255 area 120
!
Cisco IOS Release 12.2(8)T
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