HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 70

Step 1. Enter system view. Command system-view Remarks 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 the area as an NSSA area. nssa [ default-route-advertise | no-import-route | no-summary | translate-always | translator-stability-interval value ] * By default, no area is configured as an NSSA area. 5. (Optional.) Specify a cost for the default route advertised default-cost cost to the NSSA area. The default setting is 1. This command takes effect only on the ABR/ASBR of an NSSA or totally NSSA area. Configuring a virtual link Virtual links are configured for connecting backbone area routers that have no direct physical links. Virtual links cannot transit a stub area, totally stub area, NSSA area, or totally NSSA area. To configure a virtual link: Step 1. Enter system view. 2. Enter OSPF view. 3. Enter area view. 4. Configure a virtual link. Command Remarks system-view N/A ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * N/A area area-id N/A vlink-peer router-id [ dead seconds | hello seconds | { hmac-md5 | md5 } key-id { cipher cipher-string | plain plain-string } | retransmit seconds | simple { cipher cipher-string | plain plain-string } | trans-delay seconds ] * By default, no virtual link is configured. Configure this command on both ends of a virtual link, and the hello and dead intervals must be identical on both ends of the virtual link. The authentication mode (MD5 or simple) of the virtual link is determined by the authentication mode configured for the backbone area. Configuring OSPF network types OSPF classifies networks into the following types based on the link layer protocol: 59