Invention Grant
- Patent Title: Redundant link management switch for use in a stack of switches and method thereof
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Application No.: US10041505Application Date: 2002-01-10
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Publication No.: US07145864B2Publication Date: 2006-12-05
- Inventor: Chih-Chiang Lee , Fuh-Jang Lin
- Applicant: Chih-Chiang Lee , Fuh-Jang Lin
- Applicant Address: TW Hsinchu
- Assignee: Action Technology Corporation
- Current Assignee: Action Technology Corporation
- Current Assignee Address: TW Hsinchu
- Agency: Birch, Stewart, Kolasch & Birch, LLP.
- Main IPC: G01R31/08
- IPC: G01R31/08

Abstract:
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.
Public/Granted literature
- US20030128662A1 Redundant link management switch for use in a stack of switches and method thereof Public/Granted day:2003-07-10
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