Communications system having enhanced fault tolerance

Details Communications system having enhanced fault tolerance Communications system having enhanced fault tolerance

2006-11-28

2010-02-02

Jung, Min (Department: 2416)

Multiplex communications

Communication over free space

Using atm as a wireles protocol

C370S328000, C370S225000

Reexamination Certificate

active

07656830

ABSTRACT:
The invention relates to communications systems, and particularly to enhancing tolerance to failures in network elements and transmission systems. The fault tolerance is achieved by providing two or more active ATM permanent virtual channel (PVC) connections between a core network element and an access network element, and providing a separate ATM interface unit for each such ATM PVC connection in the core network element. The user and signalling traffic is distributed among these active connections and interface units. In case of a failure in one of the ATM PVC connections or interface units, the communication is maintained over the other connection(s) and interface unit(s). Thus, only part of the transport capacity is lost, and a total block of communication is avoided. Any new communication will be setup over the other connections.

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