Information
The hostname is used in prompts and default configuration filenames.
Rationale:
The domain name is prerequisite for setting up SSH.
Solution
Configure an appropriate host name for the router.
hostname(config)#hostname {router_name}
Impact:
Organizations should plan the enterprise network and identify an appropriate host name for each router.
Default Value:
The default hostname is Router.
References:
http://www.cisco.com/en/US/docs/ios-xml/ios/fundamentals/command/F_through_K.html#GUID-F3349988-EC16-484A-BE81-4C40110E6625