I have a 3845. Interface Gig0/0. Everytime I boot up the router the interface is up/up, but there is no cable attached. I enter the command keepalives 10 and the interface goes down.
I save my running config to startup. I verify, in my start-up, that keepalives are set. everytime I boot up my router that interface boots up with no keepalives set.
Any ideas why this interface is booting up without keepalives?