Multiplex communications – Fault recovery – Bypass an inoperative channel
Patent
1996-03-19
1998-03-17
Olms, Douglas W.
Multiplex communications
Fault recovery
Bypass an inoperative channel
370242, H04L 1250
Patent
active
057295271
ABSTRACT:
Efficient methods for rerouting failed channels on to spare channels in a multichannel transmission system are described. One method uses a minimal amount of rerouting to reroute all the channels if one or two line cards fail.
Another set of methods reroute up to two failed channels on to spare channels in the event of channel failures. With this method only the failed channels are rerouted. However the failed channels may have to be routed through a slightly larger, but minimal, number of additional hops than with the first method.
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Gerstel Ornan Alexander
Hall William Eric
Ramaswami Rajiv
Sasaki Galen Hajime
Olms Douglas W.
Phillips Matthew C.
Rudofski Kenneth J.
Tellabs Operations Inc.
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