IP Routing Commands
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ip ospf dead-interval
This command sets the interval at which hello packets are not seen before
neighbors declare the router down. Use the no form to restore the default value.
Syntax
ip ospf dead-interval seconds
no ip ospf dead-interval
seconds - The maximum time that neighbor routers can wait for a hello
packet before declaring the transmitting router down. This interval must be
set to the same value for all routers on the network. (Range: 1-65535)
Command Mode
Interface Configuration (VLAN)
Default Setting
40, or four times the interval specified by the ip ospf hello-interval command.
Command Usage
The dead-interval is advertised in the router's hello packets. It must be a
multiple of the hello-interval and be the same for all routers on a specific
network.
Example
Related Commands
ip ospf hello-interval (42-36)
ip ospf hello-interval
This command specifies the interval between sending hello packets on an interface.
Use the no form to restore the default value.
Syntax
ip ospf hello-interval seconds
no ip ospf hello-interval
seconds - Interval at which hello packets are sent from an interface. This
interval must be set to the same value for all routers on the network.
(Range: 1-65535)
Command Mode
Interface Configuration (VLAN)
Default Setting
10 seconds
Console(config)#interface vlan 1
Console(config-if)#ip ospf dead-interval 50
Console(config-if)#
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