Path management for enhanced protection

Details Path management for enhanced protection Path management for enhanced protection

2011-06-14

2011-06-14

Rao, Seema S (Department: 2462)

Multiplex communications

Fault recovery

Bypass an inoperative channel

C370S389000, C709S240000

Reexamination Certificate

active

07961603

ABSTRACT:
Methods and node capable of establishing link-weights based on protection-factor linked to protection level of a plurality of links between a source node and a destination node and capable of establishing primary and, potentially, protection path proposals using the established link-weights. An available bandwidth value for the link is determined. If the available bandwidth value for the link is greater than the bandwidth requirement associated to the potential path, then the link-weight of the link is set by computing a protection-factor associated to the link with the available bandwidth value for the link. Otherwise, the link-weight of the link is established to a value that indicates that the link should not be part of the potential path. Shortest path algorithm using the established link-weights could be applied to obtain path proposals.

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