USB Flash Drive Commands 165784USB Flash Drive CommandsWhen available, a USB flash drive can be used to configure, upgrade andprovide consistency to a switching network. A USB flash drive can be pluggedin sequentially to a set of routers/switches to upgrade to newer softwareversions without depending on the network to upgrade the switches with newfirmware. New switches can be pre-loaded with configuration prior todeployment.The USB Configuration Port provides access to an optional secondary storagecapability to the switch. A USB flash drive can be used to store and deployconfigurations and images from USB flash drive to the switch. A USB flashdrive can be used easily to move and copy configuration and image files fromone switch to other. Files from the switch can be copied to a USB flash deviceand can be used to deploy on other switches in the network.Validation of Files Downloaded/Uploaded fromUSB DeviceFiles are validated before downloading files from USB flash drive to switchand uploading files from switch to USB flash drive.Downloaded image files from USB flash drive to switch will be validatedagainst the following condition:• File exists- Validation to check if file being downloaded from USB flashdrive exists on the device.• Valid CRC checksum.- Validation to verify CRC for the file downloadedfrom USB flash drive to switch.• Valid STK format - Validation to check whether file is of type STK.• Target device validation – Validation to check if file being downloaded isintended for target device.
