DNZUPX159E: When you try to update the switch, PRODUCT fails to run ISCLI on the switch. This failure happens because the target switch "SYSTEM" requires the ISCLI mode. Use Secure Shell (SSH) or Telnet or PRODUCT web console to log on to the target switch. Configure the CLI to use the ISCLI mode, reboot the switch, and then try again.
This is an informational message only.