Hitless Upgrade Caveats for BlackDiamond 8800 and BlackDiamond X Series Switches

The following is a summary of hitless upgrade caveats for BlackDiamond 8800 and BlackDiamond X series switches:

If you attempt a hitless upgrade between major releases, the switch warns you that the upgrade is not hitless. You can either continue the upgrade or cancel the action. If you continue the upgrade, the primary MSM downloads the new image to the I/O module and reboots them.

Note

If you are upgrading to a newer MSM module on a BlackDiamond 8800 or BlackDiamond X series switch, you must ensure you are running a version of ExtremeXOS that supports the newer MSM module before it is installed in the switch.

Hitless upgrade is only supported between versions of same major and minor releases (for instance, ExtremeXOS 15.5.2.9 and 15.5.3.4). Do not attempt to perform a hitless upgrade between different major or minor releases (for instance, ExtremeXOS 15.5.1 and 15.4.1).

Published March 2020prev | next

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