Administrator Guide

Layer 3 Routing Commands 1749
User Guidelines
The value for the length of time must be the same for all routers attached to a
common network. This value should be some multiple of the Hello Interval
(i.e., 4).
Example
The following example sets the dead interval at 30 seconds.
console(config-if-vlan1)#ip ospf dead-interval 30
ip ospf hello-interval
Use the ip ospf hello-interval command in Interface Configuration mode to
set the OSPF hello interval for the specified interface. Use the no form of the
command to return the interval to the default value.
Syntax
ip ospf hello-interval seconds
no ip ospf hello-interval
• seconds — Number of seconds to wait before sending Hello packets from
the interface. (Range: 1–65535)
Default Configuration
10 is the default number of seconds.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
The value for the length of time must be the same for all routers attached to a
network.
Example
The following example sets the OSPF hello interval at 30 seconds.
console(config-if-vlan1)#ip ospf hello-interval 30
2CSNXXX_SWUM204.book Page 1749 Monday, January 25, 2016 1:25 PM