F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Command Reference-6PW100

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Default
The dead interval is 40 seconds for broadcast and P2P interfaces and is 120 seconds for P2MP and
NBMA interfaces.
Views
Interface view
Default command level
2: System level
Parameters
seconds: Specifies the dead interval in seconds, in the range of 1 to 2147483647.
Usage guidelines
If an interface receives no hello packet from a neighbor within the dead interval, the interface considers
the neighbor down. The dead interval on an interface is at least four times the hello interval. Routers
attached to the same segment must have the same dead interval.
Examples
# Configure the dead interval for GigabitEthernet 0/1 as 60 seconds.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/1
[Sysname-GigabitEthernet0/1] ospf timer dead 60
Related commands
ospf timer hello
ospf timer hello
Use ospf timer hello to set the hello interval on an interface.
Use undo ospf timer hello to restore the default.
Syntax
ospf timer hello seconds
undo ospf timer hello
Default
The hello interval is 10s for P2P and broadcast interfaces, and is 30s for P2MP and NBMA interfaces.
Views
Interface view
Default command level
2: System level
Parameters
seconds: Specifies the hello interval in seconds, in the range of 1 to 65535.
Usage guidelines
The shorter the hello interval is, the faster the topology converges and the more resources are consumed.
Make sure the hello interval on two neighboring interfaces is the same.