Upgrade Considerations for Stacks

Read the following section before upgrading a stack from a pre-08.0.90 release to FastIron 08.0.90 or later and before downgrading from FastIron 08.0.90 or a later release to a pre-08.0.90 release. Certain stack configuration behaviors have changed in FastIron release 08.0.90, and new commands have been introduced to assist with upgrades and downgrades. For additional information on stacking changes, refer to the RUCKUS FastIron Stacking Configuration Guide.

In pre-09.0.00 to 09.0.10a or later upgrade process, ICX 7150 stack configured with 4,000 VLANS takes around 35 minutes to be stack ready after reload. This includes the time to boot up, to complete configuration parsing, and to sync configuration to the standby unit. For a standalone ICX 7150, it takes around 24 minutes to complete configuration parsing after reload.