Method, device and system for transmitting multi-channel independent Ethernet data

Abstract

The embodiment of the invention provides a method, device and system for transmitting multi-path independent Ethernet data, comprising: using a plurality of timeslot channels and NJO(multiple pairs of negative adjusting opportunity byte) and PJO (positive adjusting opportunity byte) configured in an optical path payload unit virtual concatenated frame mechanism OPUk-Xv, in order to form a virtual concatenated multi-path transmission channel; and respectively transmit independent Ethernet data in one channel via each of the transmission channel of the multi-path transmission channel. With application of the invention, it can realize OTN (optical transmission network) transparently transmitting multi-path independent Ethernet data; also it can solve the problem that the network time delay for the multi-path independent Ethernet data to pass through the OTN is uncontrollable; and the frequency deviation range does not comply with Ethernet interface defined by IEEE (Institute of Electrical and Electronics Engineers).

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method, device and system for transmitting multi-channel independent Ethernet data. Background technique [0002] OTN (Optical Transport Network, Optical Transport Network), as the core technology of the next-generation transport network, includes the technical specifications of the electrical layer and the optical layer, and has rich OAM (Operation, Administration and Maintenance, operation, management and maintenance), powerful TCM ( Tandem Connection Monitoring (tandem connection monitoring) capability and out-of-band FEC (Forward Error Correction, forward error correction) capability. OTN can realize flexible scheduling and management of large-capacity services, and has increasingly become the mainstream technology of the backbone transport network. [0003] In terms of service processing capabilities, OTN provides powerful multi-service access capabilities. With the r...

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Problems solved by technology

[0007] In the research project of realizing the method of transmitting multi-PHY 100GE Ethernet client services in the OTN in the above-mentioned prior art, R&D engineers found that the technology has the following problems: the full-rate transparent transmission of 100GE cannot be realized (the private application information of the PCS layer cannot be supported) transmission)

[0009] In the research project of the method of transparently transmitting multi-PHY 100GE Ethernet client services in OTN in the above-mentioned prior art, the R&D engineers found that the technology has the following problems: Since the transmission paths of each independent transmission channel in OTN are different, it will cause The delay of each independent transmission channel is uncontrollable, which causes the actual transmission delay of 100GE Ethernet customer service signals to exceed the transmission delay that can be accepted by the 100GE multi-PHY interface, and finally causes the receiving end to fail to normally recover the 100GE Ethernet customer service signals

At the same time, the frequency deviation range of the customer signal that this method can accept is not suitable for the Ethernet interface defined by the IEEE (Institute for Electrical and Electronics Engineers, Institute of Electronics and Electrical Engineers) series

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