D-Link DGS-1520 User Manual - Page 268

DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide OSPFv2 Virtual Link Settings This window is used to display and configure OSPFv2 virtual link settings. If a non-zero area is not physically connected to the zero area, it must be connected to the zero area via a virtual link. The virtual link is a point-to-point link. The router will send the OSPF message to the neighbor router as unicast IP packet. To view the following window, click L3 Features > OSPF > OSPFv2 > OSPFv2 Virtual Link Settings, as shown below: Figure 6-46 OSPFv2 Virtual Link Settings Window The fields that can be configured in OSPF Virtual Link are described below: Parameter Area ID Router ID Hello Interval Dead Interval Authentication Password MD5 Key ID MD5 Key Description Select and enter the OSPFv2 area ID here. This can be specified in the IP address format or in the decimal value format. The decimal range is from 0 to 4294967295. This area will be used to establish the virtual link. Enter the router ID of the virtual link neighbor here. Enter the hello packet interval that the router sends on the virtual link here. The range is from 1 and 65535 seconds. By default, this value is 10 seconds. Select the Default option to use the default value. Enter the Dead Interval time after which a neighbor is regarded as offline if no hello packets are received within that time frame here. The range is from 1 and 65535 seconds. By default, this value is 40 seconds. Select the Default option to use the default value. Select the authentication type used here. Options to choose from are None, Simple Password, and MD5. After selecting the Simple Password authentication type, enter the password to be used here. This password can be up to 8 characters long. After selecting the MD5 authentication type, enter the MD5 authentication key ID here. The range is from 1 to 255. After selecting the MD5 authentication type, enter the MD5 authentication key here. This key can be up to 16 characters long. Click the Apply button to accept the changes made. Click the Delete button to delete the specified entry. Double-click on the entry in the table to view detailed information about the entry. 258