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Optica Publishing Group
  • Optical Fiber Communication Conference
  • 1996 OSA Technical Digest Series (Optica Publishing Group, 1996),
  • paper FD3

Management protocol of a reconfigurable WDM ring network using SDH overhead bytes

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Abstract

Wavelength-division multiplexing (WDM) networks will very often interconnect SDH equipment, the management system of which is difficult to upgrade to take into account WDM specificities. Two main issues have to be addressed: (1) How to monitor the WDM equipment and what data communication network use; and (2) How to interface the WDM specific management system with the SDH management system. Many possibilities can be used to carry supervisory information in WDM networks such as an SDH overhead,1 a pilot tone2 an assigned wavelength3 or an externa1 network. In SDH standard, a significant number of bytes of the STM frame, called the overhead, are used for locating errors and for transporting network information. The management bytes called data communication channel (DCC) are located in both regenerator and multiplex section overhead (RSOH and MSOH).

© 1996 Optical Society of America

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