OTN protocol stack
OTN (Optical Transport Network) Is an optical transport network that provides transmission and multiplexing of digital data over DWDM wavelength channels. OTN protocol stack The OTN protocol stack consists of 4 layers: Optical Channel (Och) – the lower level of the protocols; OPU (Optical Channel Payload Unit) – user data unit; ODU (Optical Channel Data Unit) protocol – optical channel data unit; OTU (Optical Channel Transport Unit) is an optical channel transport unit. Optical channel The lower layer of the…