Data processing method in optical transport network, and related device and system

Abstract

Provided are a data processing method in an optical transport network, and a related device and system. The data processing method in an optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to the payload area of an optical burst transport unit; photo-electrically converting the optical burst transport unit to form an optical burst optical signal; bearing the optical burst optical signal onto the optical slot of an optical burst channel; and transmitting the optical burst channel onto a line. The technical solutions provided in the present invention can simplify the data processing process effectively and reduce the data processing time delay.

Description

technical field [0001] Embodiments of the present invention relate to the field of optical communications, and in particular, to a data processing method, related equipment, and system for an optical transport network. Background technique [0002] Optical Transport Network (OTN, Optical Transport Network) is based on wavelength division multiplexing technology and organizes the network at the optical layer. It is currently the mainstream transport network technology. Due to the explosive growth of Internet Protocol (IP, Internet Protocol) services and other packet-based data services transmitted on the network, the requirements for transmission capacity are increasing rapidly. Dense Wavelength Division Multiplexing (DWDM, Dense Wavelength Division Multiplexing ) Technology and Optical Amplifier (OA, Optical Amplifier) ​​The maturity and application of technology make the transmission network develop towards the optical transmission network based on optical networking techno...

AI Technical Summary

Problems solved by technology

[0007] Since the crossover and multiplexing of ODUs are performed through electrical signal processing at the electrical layer, that is to say, to perform crossover of ODUs, it is first necessary to convert optical signals into electrical signals through optical receivers, and then decode them layer by layer. ODU, then perform electrical crossover, then package layer by layer, and then convert it into an optical signal through an optical transmitter. It can be seen that the intermediate node of OTN needs to perform optical-electrical-optical conversion and a large amount of electrical signal processing for the transmitted data. The processing process is complex and the data processing delay is large

Images