Multiplex communications – Fault recovery – Bypass an inoperative channel
Reexamination Certificate
2000-02-07
2008-12-09
Jung, Min (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative channel
C370S395100, C709S239000
Reexamination Certificate
active
07463581
ABSTRACT:
A method and apparatus are described for re-routing user connections between first and second nodes in a network switch. A loop-back path provides connectivity between the first and second nodes. The first node has a primary connection and a secondary connection. The primary connection carries the user connections during a normal mode. A switching element is coupled to the loop-back path and the first node to switch the connectivity from the primary connection to the secondary connection when there is a failure condition at the primary connection.
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Ellis John
Medved Jan
Blakely , Sokoloff, Taylor & Zafman LLP
Cisco Technology Inc.
Jung Min
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