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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
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Figure 8- 37. OSPF Virtual Link Settings - Edit
Configure the following parameters if you are adding or changing an OSPF Virtual Interface:
Parameter Description
Transit Area ID
Allows the entry of an OSPF Area ID − previously defined on the Switch − that allows a
remote area to communicate with the backbone (area 0). A Transit Area cannot be a Stub
Area or a Backbone Area.
Neighbor Router
The OSPF router ID for the remote router. 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.
Hello Interval (1-
65535)
Specify the interval between the transmission of OSPF Hello packets, in seconds. Enter a
value between 1 and 65535 seconds. The Hello Interval, Dead Interval, Authorization
Type, and Authorization Key should have identical settings for all routers on the same
network.
Dead Interval (1-
65535)
Specify the length of time between (receiving) Hello packets from a neighbor router before
the selected area declares that router down. Again, all routers on the network should use
the same setting.
Auth Type
If using authorization for OSPF routers, select the type being used. MD5 key authorization
must be set up in the MD5 Key Settings menu.
Password/Auth. Key
ID
Enter a case-sensitive password for simple authorization or enter the MD5 key you set in the
MD5 Key settings menu.
Transmit Delay
The number of seconds required to transmit a link state update over this virtual link. Transit
delay takes into account transmission and propagation delays. This field is fixed at 1
second.
RetransInterval
The number of seconds between link state advertisement retransmissions for adjacencies
belonging to this virtual link. This field is fixed at 5 seconds.
Click Apply to implement changes made.
NOTE: For OSPF to function properly some settings should be identical
on all participating OSPF devices. These settings include the Hello Interval
and Dead Interval. For networks using authorization for OSPF devices, the
Authorization Type and Password or Key used must likewise be identical.