Quick IOS upgrade

Following is a quick listing of the commands you need to use when upgrading the IOS firmware on legacy Cisco routers (series 1600, 2000, 2500, 3000, AS5100 and AS5200). You should consult the Cisco web site to upgrade newer models. The process involves two phases: one, set the flash to read-write and reboot; two, download … More Quick IOS upgrade