Software summary

All yl and zl switches running K.13.55 system software or earlier will have the BootROM updated by this new version of system software. This software download will boot the switch twice, first to update the BootROM to version K.12.17, and then to load the updated system software. Following file copy to the switch flash and initiation of the reload, no additional user intervention is needed. Do not interrupt power to the switch during this important update. Please see the release notes for additional information.

It is important that you update to K.13.xx from a configuration that has not been previously converted from a pre-K.13.xx format and subsequently rolled back to K.12.xx. If you have updated to K.13.xx and rolled back to K.12.xx to workaround an issue, you should load a saved K.12.xx configuration to the switch and boot to it prior to updating to K.13 again.

Archive Pre-K.13.xx configuration files before updating! A configuration file saved under version K.13.xx software is not backwards-compatible with previous software versions.