3Com 3031 Command Reference Manual page 590

590 C 6: R P
HAPTER OUTING
ospf timer dead
ospf timer hello
ROTOCOL
[3Com] interface serial1/0/0
[3Com-serial1/0/0] ospf network-type nbma
Syntax
ospf timer dead seconds
undo ospf timer dead
View
Interface view
Parameter
seconds: Dead interval of the OSPF neighbor. It is in second and ranges from 1
to 65535.
Description
Using the ospf timer dead command, you can configure the dead interval of the
OSPF neighbor. Using the undo ospf timer dead command, you can restore the
default value of the dead interval of the neighbor.
By default, the dead interval for the OSPF neighbors of p2p and broadcast
interfaces is 40 seconds, and for those of p2mp and nbma interfaces is 120
seconds.
The dead interval of OSPF neighbors means that within this interval, if no Hello
message is received from the neighbor, the neighbor will be considered to be
invalid. The value of dead seconds should be at least 4 times of that of the Hello
seconds. The dead seconds for the routers on the same network segment must be
identical.
For the related command, see ospf timer hello.
Example
Set the neighbor dead interval on the interface serial1/0/0 to 80 seconds.
[3Com] interface serial1/0/0
[3Com-serial1/0/0] ospf timer dead 80
Syntax
ospf timer hello seconds
undo ospf timer hello
View
Interface view
Parameter
seconds: Interval in seconds for an interface to transmit hello message. It
ranges from 1 to 255.
Description
Using the ospf timer hello command, you can configure the interval for
transmitting Hello messages on an interface. Using the undo ospf timer hello
command, you can restore the default value.