HIT-LESS SWITCHING METHOD AND HIT-LESS SWITCHING SYSTEM IN OPTICAL NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a method for achieving hit-less switching inexpensively, without using electric signal buffering or complicated electric signal processing, by using an ultra-high-speed optical switch and a transponder that packages therein an optical burst receiving function and a burst error correctable forward error correction function.;SOLUTION: In an optical network which is made redundant by 1+1 protection, the ultra-high-speed optical switch changes over a redundant path, the optical burst receiving function resynchronizes signals, and a forward error correction function recovers a signal interrupted by switching and resynchronization.;COPYRIGHT: (C)2010,JPO&INPIT