Ring control node

Details Ring control node Ring control node

2006-01-31

2006-01-31

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C370S224000, C709S251000

Reexamination Certificate

active

06993684

ABSTRACT:
The present invention relates to a ring system, in particular to a ring control node which increases the upper limit of the number of nodes that can be arranged on one ring by a BLSR control and conforms to an increase in line capacity and the scale of a system. The ring control node made of a plurality of nodes for performing ring control, and spans for connecting the plurality of nodes in a ring shape, and each of the nodes detects a fault occurring in a span between itself and another node adjacent thereto, and transmits the fault information to the other node using, as a destination, a span ID assigned to the span.

REFERENCES:
patent: 5146452 (1992-09-01), Pekarske
patent: 5307353 (1994-04-01), Yamashita et al.
patent: 5442620 (1995-08-01), Kremer
patent: 6816461 (2004-11-01), Scrandis et al.
patent: 6820210 (2004-11-01), Daruwalla et al.
patent: 2002/0144190 (2002-10-01), Bruckman
patent: 2003/0056153 (2003-03-01), Beer et al.

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