Netgear GSM7252PS ProSafe Managed Switch Web Management User Manual - Page 293

ProSafe® Gigabit L3 Managed Stackable Switches Software Administration Manual Virtual Link Configuration Use the OSPF Virtual Link Configuration page to create or configure virtual interface information for a specific area and neighbor. A valid OSPF area must be configured before this page can be displayed. To display the Virtual Link Configuration page, click Routing OSPF Advanced  Virtual Link Configuration. 1. Use Area ID to enter the area ID of the OSPF area. Virtual links may be configured between any pair of area border routers having interfaces to a common (non-backbone) area. 2. Use Neighbor Router ID to enter the neighbor portion of a Virtual Link specification. Virtual links may be configured between any pair of area border routers having interfaces to a common (non-backbone) area. 3. Use Hello Interval to enter the OSPF hello interval for the specified interface in seconds. This parameter must be the same for all routers attached to a network. Valid values range from 1 to 65,535. The default is 10 seconds. 4. Use Dead Interval to enter the OSPF dead interval for the specified interface in seconds. This specifies how long a router will wait 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 network. This value should a multiple of the Hello Interval, e.g., 4. Valid values range from 1 to 2147483647. The default is 40. 5. Use Iftransit Delay Interval to enter the OSPF Transit Delay for the specified interface. This specifies the estimated number of seconds it takes to transmit a link state update packet over the selected interface. Valid values range from 1 to 3600 seconds (1 hour). The default value is 1 second. 6. Use Retransmit Interval to enter the OSPF retransmit interval for the specified interface. This is the number of seconds 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. Valid values range from 1 to 3600 seconds (1 hour). The default is 5 seconds. 7. Use Authentication Type to select an authentication type other than none by clicking on the 'Configure Authentication' button. You will then see a new screen, where you can select the authentication type from the pull-down menu. The choices are: • None - This is the initial interface state. If you select this option from the pull-down menu on the second screen you will be returned to the first screen. Chapter 4. Routing | 293