SONET ring - Computer Definition
The architecture used in SONET technology. SONET rings, known as "self-healing rings," use two or more transmission paths between network nodes, which are typically digital cross-connects (DCSs) or add/drop multiplexers (ADMs). If there is a break in one line, the other may still be available, providing the second is not in close proximity to the first and also damaged. For the best security against failure, when possible, different physical routes are used for the two lines. The most fault-tolerant architecture is the four-fiber bi-directional ring. See SONET.
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