Data transfer method, node and system

Abstract

Disclosed is a data transfer method, comprising: receiving first control information sent by an upstream node and receiving the OB sent by the upstream node taking the defined period as reference, wherein first marker information corresponding to the OB is included in the first control information; querying a marker forwarding table according to the first marker information to acquire the forwarding information about the OB; and forwarding the OB at the optical layer according to the forwarding information. Also disclosed are a corresponding node and a transfer system. During the implementation of the embodiments of the present invention, forwarding the OB according to the forwarding table is advantageous for realizing statistical multiplexing of bandwidth and improving the utilization efficiency of resources and further improving the throughput rate of the network, that is, increasing the optical layer forwarding ability and performance of the communication network.

Description

technical field [0001] The present invention relates to the field of optical communication, in particular to a data transmission method, node and system. Background technique [0002] With the rise of high-bandwidth services and the increase in the number of broadband users, the network traffic in the communication network increases exponentially, resulting in higher and higher requirements on the capacity of routers in nodes. Currently, routers consume unacceptably high power consumption and are expensive both capital and operational to support the enormous capacity demanded by communications networks. Therefore, reducing the power consumption and cost of routers in nodes, that is, reducing the power consumption and cost of communication network nodes, is an urgent problem to be solved at present. [0003] All-optical switching technology is considered to be a better way to solve the problem of router power consumption and cost. The all-optical switching technologies main...

AI Technical Summary

Problems solved by technology

[0005] Since both OPS and OBS technologies are based on the packet switching system, when applied to any network, especially a mesh (Mesh) network, an optical buffer as flexible as an electrical random access memory (RAM, Random Access Memory) is required , but it is very difficult to implement flexible optical buffering. It is expected that OPS and OBS technologies will not be practical in Mesh networks for a long time

That is to say, with the OPS and OBS technologies proposed now, the optical layer conflicts are serious and the network throughput is low.

Images