A device and method for lossless adjustment of packet services based on otn

Abstract

A lossless adjustment apparatus and method based on an OTN packet service relate to the technical field of optical network communications. A network management processing module is configured to distribute, according to a received service traffic adjustment command, service traffic to a traffic increasing module or a traffic reducing module for processing. The traffic increasing module is configured to distribute remaining ODUK pipe resources to nodes to establish ODUK pipes, or configured to establish new ODUK pipes at nodes. The traffic reducing module is configured to allocate an ODUK pipe that needs to be reduced to each node, and decide to release the reduced ODUK pipes. A packet processing module is configured to add an ODUK pipe to an LAG member group or remove an ODUK pipe out of an LAG member group. A framing chip is configured to complete addition and releasing of an ODUK pipe. With the present invention, an adjustment loss is avoided, any ODUK pipe of any OTUK with any wavelength is adjusted in a node switching system, flexibility is improved, and limitation in use is avoided.

Description

technical field [0001] The invention relates to the technical field of optical network communication, in particular to an OTN-based packet service lossless adjustment device and method. Background technique [0002] The optical communication services carried by the traditional OTN (Optical Transport Network, Optical Transport Network), whether it is statistically multiplexed packet-switched services or circuit-switched time-division multiplexed Unit) pipelines are all limited by the flow rate of the ODUK pipeline itself. In the current network, due to the large-scale application of statistical multiplexing packet switching services, the traffic of services will expand with time, so the ODUK pipeline may also increase accordingly. [0003] However, in the existing chip technology, the framing chip that establishes the ODUK pipeline cannot adjust the size of the ODUK pipeline at will. Generally, the adjustment of the pipeline size needs to be realized by deleting and building...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing chip technology, the framing chip that establishes the ODUK pipeline cannot adjust the size of the ODUK pipeline at will. Generally, the adjustment of the pipeline size needs to be realized by deleting and building services. At this time, the service interruption time is generally At about 1 second, it cannot meet the transmission requirements of the telecom level, and there is an adjustment loss

In addition, even though the standard ODUK framing chip can achieve non-destructive adjustment, the framing chip is expensive and can only adjust the ODUK pipeline it includes in a large OTUK pipeline, and cannot handle any OTUK between any OTUK. ODUK pipeline, less flexible and limited in use

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