System for providing fabric activity switch control in a...

Details System for providing fabric activity switch control in a... System for providing fabric activity switch control in a...

2006-08-29

2006-08-29

Jung, Min (Department: 2663)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S244000

Reexamination Certificate

active

07099271

ABSTRACT:
Disclosed is a system for providing redundancy on a communications switch platform having a data plane for processing data. The data plane includes an active fabric having an ingress and an egress and establishing a first datapath, a redundant fabric having an ingress and an egress and establishing a second datapath, and a fabric switch for aligning the egress of one of said fabrics to a system output. A separate and independent control plane is provided for monitoring the processing of data. The control plane includes: (i) a plurality of monitors operatively connected to monitor the status of the active and redundant fabrics in the data plane for a fault; and (ii) a fabric activity switch circuit adapted to determine whether the fault occurred in the active fabric in the data plane, and if so, to generate a fabric activity switch signal directed to said fabric switch in the data plane.

REFERENCES:
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patent: 6078595 (2000-06-01), Jones et al.
patent: 6226261 (2001-05-01), Hurtta et al.
patent: 6442133 (2002-08-01), Owada
patent: 6850704 (2005-02-01), Dave
patent: 6894969 (2005-05-01), Chidambaran et al.
patent: 2002/0099972 (2002-07-01), Walsh et al.

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