White Papers

Supported Modes Full—Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
ip ospf priority
To determine the designated router for the OSPF network, set the priority of the interface.
Syntax
ip ospf priority number
To return to the default setting, use the no ip ospf priority command.
Parameters
number Enter a number as the priority. The range is from 0 to 255. The default is 1.
Defaults 1
Command Modes INTERFACE
Supported Modes Full—Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
Setting a priority of 0 makes the router ineligible for election as a designated router or backup designated
router.
Use this command for interfaces connected to multi-access networks, not point-to-point networks.
ip ospf retransmit-interval
Set the retransmission time between lost link state advertisements (LSAs) for adjacencies belonging to the interface.
Syntax
ip ospf retransmit-interval seconds
To return to the default values, use the no ip ospf retransmit-interval command.
Parameters
seconds Enter the number of seconds as the interval between retransmission. The range is
from 1 to 3600. The default is 5 seconds.
This interval must be greater than the expected round-trip time for a packet to
travel between two routers.
Defaults 5 seconds
Command Modes INTERFACE
Supported Modes Full—Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
Set the time interval to a number large enough to prevent unnecessary retransmissions. For example, the
interval must be larger for interfaces connected to virtual links.
828 Open Shortest Path First (OSPFv2 and OSPFv3)