A survey on protection and restoration methods in Optical Networks
نویسندگان
چکیده
optical networks working on WDM (Wavelength Division Multiplexing) are prone to component failures. As these networks carry huge amount of information, fault management has become vital in maintaining survivability of high speed optical networks. In WDM networks failure of networks, failure of network element may cause the failure of several optical channels, thereby leading to large data losses. Lea In this paper, existing protection and restoration methods proposed for optical network are critically reviewed and analyzed. The operation of various methods and their performance also presented.
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