While a download is in progress this will always be 'no-error'. After a download is complete this indicates the success or failure of the download. If it is anything other than 'no-error' then 'genOpLastFailureDisplay' will contain a textual description of the error. Error codes from 100 upwards are errors returned from a TFTP server. errors below this are locally generated. Configuration files may return errors after download as a result of reading a config file into the system. confFileGenErr - General (unknown error) confFileParseError - Reading of config file resulted in parsing errors. confFileExecError - Reading of config file resulted in execution errors. sshServerAuth - SCP server failed to authenticated himself to a device. sshDeviceAuth(109)- device failed to authenticate to the SCP server (unknown user/bad password) badChainOfTrust(201) - Failed to authenticate the download with Trusted Certificate Root Authority badChainOfTrustFormat (202) - Not supported chain of trust format notCodeSigningAuthority (203) Software image was signed by non-authorized Certificate Authority illegalDSA (204) - Software image is signed with non FIPS 140-2 certified algorithm badPublicKeyFormat(205) - Not supported public key format. illegalDSKeySize(206) - Software image is signed with non FIPS 140-2 certified key size badDSFormat(207) - Not supported digital signature format authDSFailure(208) - Failed to authenticate digital image signature configFileSecretIntegrityFault(210) - The configuration file was encrypted with a different key. Configuration download operation was aborted.