Reference v4.1.0 Instruction Manual

378 Network OS Command Reference
53-1003115-01
ip ospf dead-interval
2
ip ospf dead-interval
Configures neighbor dead interval.
Synopsis ip ospf dead-interval interval
no ip ospf dead-interval
Operands interval Dead interval in seconds.
Defaults The default value is 40 seconds.
Command Modes Interface subtype configuration mode
Description Use this command to set the number of seconds that a neighbor router waits for a hello packet
from the device before declaring the router down. If you change the dead interval, the hello interval
is changed to be one fourth the new dead interval, unless the hello interval is also explicitly
configured by using the ip ospf hello-interval command. Also, running-config displays only explicitly
configured values of the hello interval, which means that a value that got automatically changed
as the result of a dead-interval change would not be displayed.
Usage Guidelines Enter no ip ospf dead-interval to use the default value.
Examples To set the dead interval to 80 on a specific OSPF 40-gigabit Ethernet interface:
switch(config)# interface fortygigabitethernet 101/0/10
switch(conf-if-fo-101/0/10)# ip ospf dead-interval 80
To set the dead interval to 70 on a specific OSPF virtual Ethernet (VE) interface:
switch(config)# rbridge-id 178
switch(config-rbridge-id-178)# interface ve 24
switch(config-ve-24)# ip ospf dead-interval 70
See Also interface,interface ve, ip ospf area, ip ospf auth-change-wait-time, ip ospf authentication-key,
ip ospf cost, ip ospf database-filter, ip ospf hello-interval, ip ospf md5-authentication,
ip ospf mtu-ignore, ip ospf network, ip ospf passive, ip ospf priority, ip ospf retransmit-interval,
ip ospf transmit-delay