Dell PowerConnect 6248 User's Guide - Page 545

Virtual Link Summary Use the OSPF Virtual Link Summary page to display all of the configured virtual links. To display the page, click Routing →OSPF →Virtual Link Summary in the tree view. Figure 9-18. OSPF Virtual Link Summary The OSPF Virtual Link Summary page contains the following fields: • Area ID - The Area ID portion of the virtual link identification for which data is to be displayed. The Area ID and Neighbor Router ID together define a virtual link. • Neighbor Router ID - The neighbor portion of the virtual link identification. Virtual links may be configured between any pair of area border routers with interfaces to a common (non-backbone) area. • Hello Interval (secs) - The OSPF hello interval for the virtual link in units of seconds. The value for hello interval must be the same for all routers attached to a network. • Dead Interval (secs) - The OSPF dead interval for the virtual link in units of seconds. This specifies how long a router waits to see a neighbor router's Hello packets before declaring that the router is down. This parameter must be the same for all routers attached to a common network, and should be a multiple of the Hello Interval (i.e. 4). • Retransmit Interval (secs) - The OSPF retransmit interval for the virtual link in units of seconds. This specifies the time between link-state advertisements for adjacencies belonging to this router interface. This value is also used when retransmitting database descriptions and link-state request packets. Configuring Routing 545