Configuring a virtual link
Non-backbone areas exchange routing information via the backbone area. Connectivity between the backbone and non-backbone areas and within the backbone must be maintained.
If the required physical links are not available for this connectivity maintenance, you can configure virtual links to resolve it.
To configure a virtual link:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter OSPF view. | ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * | N/A |
3. Enter area view. | area area-id | N/A |
4. Configure a virtual link. | vlink-peer router-id [ hello seconds | retransmit seconds | trans-delay seconds | dead seconds | simple [ plain | cipher ] password | { md5 | hmac-md5 } key-id [ plain | cipher ] password ] * | You must configure this command on both ends of a virtual link. hello and dead intervals must be identical on both ends of the virtual link. |