18 ip ospf dead-interval, 19 ip ospf disable all – CANOGA PERKINS CanogaOS Command Reference User Manual

Page 256

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CanogaOS Command Line Reference

Revision 1.02

Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches

Page 256 of 855

15.18 ip ospf dead-interval

To set the interval during which at least one hello packet must be received from a neighbor before the
router declares that neighbor down, use the ip ospf dead-interval command in interface configuration
mode. To restore the default value, use the no form of this command.


Command Syntax

ip ospf dead-interval seconds
no ip ospf dead-interval

seconds

Interval (in seconds) during which the router must receive at least one hello packet
from a neighbor or else that neighbor is removed from the peer list and does not
participate in routing. The range is 1 to 65535. The value must be the same for all
nodes on the network.


Default

seconds: Four times the interval set by the ip ospf hello-interval command.


Command Mode

Interface configuration


Usage

The dead interval is advertised in OSPF hello packets. This value must be the same for all networking
devices on a specific network.
Specifying a smaller dead interval (seconds) will give faster detection of a neighbor being down and
improve convergence, but might cause more routing instability.


Examples

The following example sets the OSPF dead interval to 20 seconds:
interface eth-0-1
ip ospf dead-interval 20


Related Commands

ip ospf hello-interval
show ip ospf interface

15.19 ip ospf disable all

To disable al the OSPF functionality on an interface, use the ip ospf disable all command in interface
configuration mode. To restore the OSPF functionality, use the no form of this command.


Command Syntax

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