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

A multicast service and self-adaptive technology, applied in multiplexing system selection devices, transmission systems, digital transmission systems, etc., to achieve the effect of improving network throughput and reducing service blocking rate

Active Publication Date: 2013-04-24
重庆信科设计有限公司
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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 m

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

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Embodiment Construction

[0022]In an optical network, there are generally the following six methods to realize service transmission: 1. Single-hop grooming is a service of the same source and destination node set, which is equivalent to performing a bundling operation at the source node, without consuming grooming ports and node optical transceivers; 2. Multi-hop grooming is to complete the transmission of newly arrived service requests through multiple established optical trees. The source node, destination node of the request, and the source node of the second optical tree that meets the conditions all need to consume the grooming port; 3. Hybrid grooming is to establish an optical path connecting the new request source node and the source node of the existing optical tree, and complete the transmission of new services through the existing optical tree and the new optical path. The existing optical tree must meet its destination node set and new request In this method, the source node consumes the tr...

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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 ...

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Application Information

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IPC IPC(8): H04L12/801H04L12/761H04Q11/00H04L45/16
Inventor 刘焕淋方强江上岁蒙邓朗黄胜向劲松
Owner 重庆信科设计有限公司
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