OTN

Optical Transport Network (OTN) is an optical mapping layer for variety of different rate 10G services such as STM64/OC-192 and 10G LAN over the same common frame and rate structure which enables a single optical transport network regardless of the native client signal.

 

OTN relies on ITU-T the G.709 digital wrapper specification to transparently encapsulate client signals and provide faster troubleshooting and superior SLA monitoring capabilities. OTN provides the additional benefit of Forward Error Correction (FEC) to boost the network optical performance by at least a factor of 4 (6dB coding gain). Forward Error Correction (FEC) is a major feature of the OTN network, and it is standardized by both ITUT G.709 and ITU-T G.975 specifications.