Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.1
Introduced on the E-Series.
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.
C-Series, E-Series, S-Series, Z-Series, S4810
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 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
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.1
Introduced on the E-Series.
Usage 
Information
Set the time interval to a number large enough to prevent unnecessary retransmissions. For 
example, the interval should be larger for interfaces connected to virtual links.
ip ospf transmit-delay
Set the estimated time elapsed to send a link state update packet on the interface.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
ip ospf transmit-delay seconds
To return to the default value, use the no ip ospf transmit-delay command.
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