Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Patent
1996-04-10
2000-10-31
Olms, Douglas W.
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
370220, 370221, 370225, H04J 314
Patent
active
061413194
ABSTRACT:
Alternative routing schemes in high-speed networks ensure fault tolerance in the event of a link failure. An heuristic algorithm, based on maximal-flow algorithm, is first used to partition the network into parts: one part carries regular or primary traffic and another part is reserved to carry re-routed traffic in the event of a link failure. The result of applying the algorithm is used to find alternative routes for a given call at the time of call setup. The scheme can be modified to accommodate hop-court limitations and loop avoidance.
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Dighe Rajiv S.
Ren Qiang
Sengupta Bhaskar
Hom Schick
NEC USA Inc.
Olms Douglas W.
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