Invention Grant
- Patent Title: Wiring closet redundancy
- Patent Title (中): 接线柜冗余
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Application No.: US11074923Application Date: 2005-03-07
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Publication No.: US08259562B2Publication Date: 2012-09-04
- Inventor: Michael Smith , Jeffrey Wang , Roger Karam
- Applicant: Michael Smith , Jeffrey Wang , Roger Karam
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patterson & Sheridan, LLP
- Main IPC: G01R31/08
- IPC: G01R31/08

Abstract:
Systems and method for providing redundancy of communications and/or inline power to a powered Ethernet device are disclosed. A redundancy device is configured to receive in-line data and/or power from a plurality of Ethernet relay uplinks and to monitor communications between the relay uplinks. One of the relay uplinks is established as an active state uplink and passes data and/or power to the power device. Responsive to a switchover communication from a redundant uplink, the redundancy device establishes the redundant uplink as the active uplink, thereby passing data and/or power from the redundant uplink to the power device. The relay uplinks may use packet-based communication to sense when there is a failure in a link, and replace a failed device with a redundant device.
Public/Granted literature
- US20060077891A1 Wiring closet redundancy Public/Granted day:2006-04-13
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