Birch, Stewart, Kolasch & Birch, LLP
Redundant link management switch for use in a stack of switches and method thereof
A stackable switch supporting redundant link and backup management. The stackable switch includes a stacking module, a processor and a management module. Several stackable switches can be stacked together in the form of a closed-loop link topology via the stacking module. The stacking module has an uplink port, a downlink port, and preferably a manual control device. The processor instructs the stacking module to enable or disable a downlink control bus within the downlink port when receiving a reconnect/disconnect command. If a link status, generated from the processor, indicates that these switches are stacked into the closed-loop link topology, the management module issues the disconnect command. Otherwise, the management module issues the reconnect command to recover a redundant link. Provided that the manual control device is activated, the management module in the same switch has the highest priority to become a master agent for the switch stack.
Accton Technology Corporation
G G H H
G06F G06F H04L H04L
inventional inventional inventional inventional
Fuh-Jang Huan-Wen
Lin Chen