| 单词 | path-switched ring |
| 释义 | path-switched ring A SONET/SDH topology that employs two active optical fibers in a dual counter-rotating ring configuration. All traffic moves in both directions. Should the primary ring fail, the secondary ring is already active in the reverse direction, thereby providing protection from network failure. A path-switched approach also improves error performance because the receiving stations examine both data streams and select the better signal. See also line-switched ring, optical fiber, SDH, SONET, and topology. |
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