Distributed switching in bidirectional multiplex section-switche

Details Distributed switching in bidirectional multiplex section-switche Distributed switching in bidirectional multiplex section-switche

1992-06-02

1994-08-23

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 16, H04J 116

Patent

active

053413644

ABSTRACT:
Long delays in bidirectional multiplex section-switched self-healing ring transmission systems are avoided by eliminating looping of communications signals when restoring them in response to a failure in the ring and by distributing switching of paths to be protected to ring nodes other than those immediately adjacent the failure. This is realized by provisioning each node in the bidirectional multiplex section-switched ring transmission system with a map of its traffic pattern (all active tributaries) and the relative position of each ring node in the ring transmission system, and allowing the ring node, if it has communications traffic affected by the failure, to bridge and switch to and from the protection path.

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