SDH/SONET Protection

ITU-T G.841 - This Recommendation provides the necessary equipment-level specifications to implement different choices of protection architectures for Synchronous Digital Hierarchy (SDH) networks. Protected entities may range from a single SDH multiplex section ...

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WDM / OTN Protection

Optical Transport Network (OTN): Linear Protection ITU-T G.873.1 - This Recommendation defines the APS protocol and protection switching operation for the linear protection schemes for the Optical Transport Network. Protection switching will occur based on ...

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