Enabling the optical transport network through digital wrappers

摘要

Changes in the Optical transport Network are driving changes in the services the network operators can provide, the equipment that venders will produce, and how networks will be managed. Digital wrappers on each wavelength provide the overhead needed for robust optical networking to support next generation optical networks, transparent wavelength services, independence from SONET, IP, and ATM formats, and future proofing against changes in formats or signalling. This paper will discuss how digital wrapper networks provide transparent wavelength services and will discuss how the Optical Transport Network provides monitoring, protection, and wavelength protection though digital wrappers and optical supervisory channels.