A virtual link is configured, and a virtual link endpoint on two devices, ABR1 and ABR2, is defined.
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On ABR1, enter the
configure terminal command to access global configuration mode.
device# configure terminal
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Enter the
router ospf command to enter OSPF router configuration mode and enable OSPFv2 on the device.
device(config)# router ospf
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Enter the
area command to assign an OSPFv2 area ID.
device(config-router-ospf-vrf-default-vrf)# area 0
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Enter the
area command to assign an OSPFv2 area ID.
device(config-router-ospf-vrf-default-vrf)# area 1
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Enter the
area virtual-link command and the ID of the OSPFv2 device at the remote end of the virtual link to configure the virtual link endpoint.
device(config-router-ospf-vrf-default-vrf)# area 1 virtual-link 10.2.2.2
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On ABR2, enter the
configure terminal command to access global configuration mode.
device# configure terminal
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Enter the
router ospf command to enter OSPFv2 router configuration mode and enable OSPFv2 on the device.
device(config)# router ospf
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Enter the
area command to assign an OSPFv2 area ID.
device(config-router-ospf-vrf-default-vrf)# area 1
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Enter the
area command to assign an OSPFv2 area ID.
device(config-router-ospf-vrf-default-vrf)# area 2
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Enter the
area virtual-link command and the ID of the OSPFv2 device at the remote end of the virtual link to configure the virtual link endpoint.
device(config-router-ospf-vrf-default-vrf)# area 1 virtual-link 10.1.1.1
The following example configures a virtual link between two devices.
ABR1:
device1# configure terminal
device1(config)# router ospf
device1(config-router-ospf-vrf-default-vrf)# area 0
device1(config-router-ospf-vrf-default-vrf)# area 1
device1(config-router-ospf-vrf-default-vrf)# area 1 virtual-link 10.2.2.2
ABR2:
device2# configure terminal
device2(config)# router ospf
device2(config-router-ospf-vrf-default-vrf)# area 1
device2(config-router-ospf-vrf-default-vrf)# area 2
device2(config-router-ospf-vrf-default-vrf)# area 1 virtual-link 10.1.1.1
