Persuasion method of self-adaptive dynamic multicast service and node system provided with the same

Abstract

The invention provides a persuasion method of a self-adaptive dynamic multicast service and a node system provided with the persuasion method of the self-adaptive dynamic multicast service, and belongs to the technical field of network communication. The node system comprises an optical layer and an electric domain layer. The persuasion method of the node system includes that a plurality of methods for a transmission service in a wavelength division multiplex (WDM) optical network are firstly analyzed, and two multicast service persuasion strategies including a node transceiver number minimum use strategy and a node persuasion port number minimum use strategy are proposed according to different optimization objectives. Due to the fact that network resource changes at different moments, a threshold value parameter is set to judge which resource is rare resource at the moment, and therefore the transmission of a new service is accomplished through a suitable selection of a persuasion strategy. The self-adaptive dynamic service persuasion method is capable of effectively solving the problem of dynamic multicast service persuasion in the WDM optical network, substantially improving the service persuasion performance of the WDM optical network, reducing service blocking rate, and increasing network throughput.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to a dynamic multicast service grooming technology in a WDM mesh optical network. Background technique [0002] Due to the maturity and application of wavelength division multiplexing (wavelength division multiplex, WDM) and dense wavelength division multiplexing (dense wavelength division multiplexing, DWDM) optical fiber technology provides huge bandwidth and capacity for communication network information transmission, currently each wavelength channel The transmission capacity has reached 10Gbps (OC-192), even 40Gbps (OC-768). However, the required bandwidth of various applications of our existing users is only OC-1, OC-3, or OC-12, so the difference between the high granularity of single-wavelength bandwidth and the low granularity of actual service bandwidth makes each low-speed Service requests to establish an optical path connection, resource utilization ...

AI Technical Summary

Problems solved by technology

[0005] In view of the fact that the existing dynamic multicast grooming method does not consider the constraints on the number of node grooming ports and the dynamic change of network resources, the present invention provides an adaptive dynamic multicast business grooming method, which can effectively solve the problem of WDM optical network In order to solve the problem of dynamic multicast business grooming, it can greatly improve the business grooming performance of WDM optical network

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