Command
Keepalive
Use
This command changes how often an interface sends a keepalive to prove to its directly connected neighbor it is still up/up. The default is 10 seconds
Syntax
Router(config-if)#keepalive <seconds>
Example
In this example, we will lower Fa0/0’s keepalive to 5 seconds .
R1(config)#int fa0/0 R1(config-if)#keepalive 5 R1(config-if)#do sh int fa0/0 | in Keepalive Keepalive set (5 sec)