xStack
® 
DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide 
185 
 
Hello Interval (1-65535) 
Enter the specification of the interval between the transmissions of OSPF Hello 
packets, in seconds. The Hello Interval, Dead Interval, Authorization Type, and 
Authorization Key should be the same for all routers on the same network. 
Dead Interval (1-65535) 
Enter the specification of the length of time between the receipts of Hello packets 
from a neighbor router before the selected area declares that router down. The Dead 
Interval must be evenly divisible by the Hello Interval. 
Password  When Simple is selected in the Authentication drop-down menu, enter a simple text 
password. 
Passive 
Assign the designated entry to be a passive interface. A passive interface will not 
advertise to any other routers than those within its OSPF intranet. 
Click the Apply button to accept the changes made. 
Click the <<Back button to return to the previous window. 
 
OSPF Virtual Link Settings 
This window is used to configure the OSPF virtual interface settings for this switch. 
To view the following window, click L3 Features > OSPF > OSPFv2 > OSPF Virtual Link Settings, as shown 
below: 
 
 
Figure 5-39 OSPF Virtual Link Settings window 
 
The fields that can be configured are described below: 
Parameter  Description 
Transit Area ID 
A 32-bit number in the form of an IP address (xxx.xxx.xxx.xxx) that uniquely identifies 
the OSPF area in the OSPF domain. 
Neighbor Router ID 
The OSPF router ID for the remote area. This is a 32-bit number in the form of an IP 
address (xxx.xxx.xxx.xxx) that uniquely identifies the remote area’s Area Border 
Router. This is the router ID of the neighbor router. 
Hello Interval (1-65535) 
Enter the specification of the interval between the transmissions of OSPF Hello 
packets, in seconds. The Hello Interval, Dead Interval, Authorization Type, and 
Authorization Key should be the same for all routers on the same network. 
Dead Interval (1-65535) 
Enter the specification of the length of time between the receipts of Hello packets 
from a neighbor router before the selected area declares that router down. The Dead 
Interval must be evenly divisible by the Hello Interval. 
Authentication  Select the authentication used. Options to choose from are None, Simple and MD5. 
When choosing Simple authentication, a password must be entered. When choosing 
MD5 authentication, a Key ID must be entered. 
Password  When Simple is selected in the Authentication drop-down menu, enter a simple text 
password. 
Click the Apply button to accept the changes made. 
Click the Edit button to re-configure the selected entry.