The present invention features embodiments of alleviating the impact to a
system of stack switches, as well as to neighboring nodes communicating
with such a system, when a primary master switch to secondary master
switch failover occurs. The features of the present invention, generally
enables a system of stack switches to retain, for a fixed or indefinite
period of time, its stack address even when multiple primary master to
secondary master failovers occur. This way recalculation of certain
protocols--e.g., spanning trees and link aggregations--and updating of
certain tables--e.g., address resolution protocol (ARP) and routing
tables--are minimized.