A Queue Scheduling Weight Quantification Method Based on SDN Power Communication Network

Abstract

The invention relates to a queue scheduling weight quantification method based on an SDN electric power communication network, and belongs to the field of queue scheduling in the electric power communication network. The method includes: 1) sending real-time network parameters to the SDN switch by requesting the SDN controller, and the network parameters include link available bandwidth, delay and bit error rate; 2) calculating each queue in combination with the queue length and service quality requirements of the business Queue scheduling weights based on link available bandwidth, delay and bit error rate respectively; 3) According to the bandwidth weights, delay weights and bit error rate weights of each queue, calculate the comprehensive weight of queue scheduling value. According to the different requirements for bandwidth, time delay and bit error rate of various services in the power grid, the invention calculates the queue scheduling weight from the perspective of network state parameters, which can not only ensure the service quality requirements of different power services, but also make the network throughput The capacity and resource utilization are maximized, and it plays a supporting role in the orchestration of services in the SDN power communication network.

Description

technical field [0001] The invention belongs to the field of queue scheduling in electric power communication networks, and relates to a queue scheduling weight quantification method based on SDN electric power communication network. Background technique [0002] The power communication network is an important part of the smart grid construction of the State Grid Corporation of China. With the expansion of network scale and the explosive growth of services, the power communication network based on Synchronous Digital Hierarchy (SDH) can no longer meet the requirements of "dynamic resource allocation and considerable and controllable traffic". Software Defined Networking (SDN) separates the data plane from the control plane, adopts a centralized control method, grasps network topology information and resource usage, and can realize dynamic allocation of network resources from a global perspective, business-aware traffic scheduling, business quality of service (QoS) ) Guarant...

AI Technical Summary

Problems solved by technology

However, most of the current research on SDN focuses on the routing problem of the data network center, and few people combine SDN with queue scheduling.

[0004] Most of the existing literatures artificially give the weight of queue scheduling in advance, which will cause the weight to be fixed in the process of queue scheduling, resource allocation is not flexible, and the network throughput is small

In addition, although there are also literatures that give the weight of queue scheduling in advance, and then dynamically adjust the weight according to the network state, these methods usually only consider a single network state parameter, such as only network bandwidth or channel utilization. And the network state parameters are mostly estimated values

At present, there is no literature that starts from multiple network status parameters provided by SDN to comprehensively calculate the comprehensive weight of queue scheduling.

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