MCT Hitless Upgrade
Note: MCT hitless upgrade is not
supported for upgrade from a FastIron release prior to 09.0.10a.
ICX devices support MCT hitless upgrade with minimal traffic disruption for MCT cluster devices. In-Service System Upgrade (ISSU) between minor releases is used for image upgrade of stacking units within the same cluster node. Stacking units within the cluster node should be upgraded one after the other to minimize traffic disruption.
Refer to the RUCKUS FastIron Software Upgrade Guide for more information on ISSU and upgrading a stack.