hitless
failover
In the Extreme Networks
implementation on modular switches and SummitStacks, hitless failover means that designated
configurations survive a change of primacy between the two
MSM (Master Switch Fabric Module)s
(modular switches) or master/backup nodes (SummitStacks) with all details intact. Thus,
those features run seamlessly during and after control of the system changes from one MSM or
node to another.