Command Line Reference Guide

1032 | Open Shortest Path First (OSPFv2 and OSPFv3)
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ip ospf dead-interval
c e s
Set the time interval since the last hello-packet was received from a router. After the interval elapses,
the neighboring routers declare the router dead.
Syntax
ip ospf dead-interval seconds
To return to the default values, enter no ip ospf dead-interval.
Parameters
Defaults
40 seconds
Command Modes
INTERFACE
Command
History
Usage
Information
By default, the dead interval is four times the default hello-interval.
Related
Commands
ip ospf hello-interval
c e s
Specify the time interval between the hello packets sent on the interface.
Syntax
ip ospf hello-interval seconds
To return to the default value, enter no ip ospf hello-interval.
Parameters
Defaults
10 seconds
Command Modes
INTERFACE
Command
History
Usage
Information
The time interval between hello packets must be the same for routers in a network.
Related
Commands
seconds
Enter the number of seconds for the interval.
Range: 1 to 65535. Default: 40 seconds.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
ip ospf hello-interval Set the time interval between hello packets.
seconds
Enter a the number of second as the delay between hello packets.
Range: 1 to 65535.
Default: 10 seconds.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
ip ospf dead-interval Set the time interval before a router is declared dead.