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Disabling MT-OSPF on a Virtual Link

By default, control packets sent to the remote end of a virtual link must be forwarded using the default topology. In addition, the transit area path consists only of links that are in the default topology. You can disable a virtual link for a configured topology, but not for a default topology. Include the disable statement at the [edit protocols ospf area area-id virtual-link neighbor-id router-id transit-area area-id topology name] hierarchy level:



[edit protocols ospf]

area area-id {



virtual-link neighbor-id router-id transit-area area-id {



topology (ipv4-multicast
| name) {
disable;
}


}


}

Note: If you disable the virtual link by including the disable statement at the [edit protocols ospf area area-id virtual-link neighbor-id router-id transit-area area-id] hierarchy level, you disable the virtual link for all topologies, including the default topology. You cannot disable the virtual link only in the default topology.

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