Action Technology Corporation

Chih-Chiang Lee

Fuh-Jang Lin

A redundant link management switch for use in a stack of switches forming a closed-loop link topology, including a stacking module, a processor and a management module. The stacking module has an uplink port for connecting a next-higher switch in the stack and a downlink port for connecting a next-lower switch in the stack. The processor instructs the stacking module to disable a downlink control bus within the downlink port when receiving a disconnect command, and instructs the stacking module to enable the downlink control bus when receiving a reconnect command. The management module asserts the disconnect command if a link status, received from the processor, indicates that the redundant link management switch and the stack of switches are stacked into the closed-loop link topology. Additionally, the management module asserts the reconnect command to recover a redundant link if the management module detects that the closed-loop link topology is changed.

Growing community of inventors

Chang-Hua, Taiwan

Chih-Chiang Lee