The best way to record the serial number for Cisco Devices for Remote support.

Imagine if you are accesing the remote router and need to figure out the serial number for a router or the Circuit IDs of the serial interface, then you may start looking your docmented data or call the remote technician to help you out in figuring these details. The best and easy way to get these details in matter of seconds is to put the serial number of each device in the Banner MOTD, and the circuit IDs in the serial interface descriptions.