Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 3 OSPF Configuration Commands
3Com Corporation
3-47
3.1.42 ospf timer dead
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
Use the ospf timer dead command to configure the dead interval of the OSPF
neighbor.
Use the undo ospf timer dead command to 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 four times the value of the Hello seconds.
The dead seconds for the routers on the same network segment must be identical.
Related command: 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
3.1.43 ospf timer hello
Syntax
ospf timer hello seconds
undo ospf timer hello
View
Interface view