Single-switch and single-controller transmission control method in the software defined network

Abstract

The invention provides a single-switch and single-controller transmission control method in the software defined network, aims at improving the negative influence of network bottleneck bandwidth on the overall performance of a system, and the method comprises the following steps: establishing a software-defined network single-switch single-controller transmission control system model based on a queuing game theory, and constructing a mathematical model of competition behaviors and targets among network nodes in the system model; solving a theoretical equilibrium solution of the mathematical model to obtain an optimal strategy of the network node; using the optimal strategy in a transmission control system, so that the transmission pressure that controller nodes are easy to congest is relieved, and the maximization of the efficiency of the software defined network is realized. According to the single-switch and single-controller transmission control method in the software defined network, the problem of resource allocation of the software-defined network can be solved, the controller nodes and the switch nodes are regarded as equal game players, and dependence on a certain role canbe reduced.

Description

technical field [0001] The invention relates to the technical field of resource allocation in a software-defined network, in particular to a transmission control method for a single switch and a single controller in a software-defined network. Background technique [0002] In software-defined networking (SDN), the control logic of the network (control plane) is separated from the underlying routers and switches (data plane) that forward traffic. The switch becomes a simple forwarding device, and the control logic is implemented in the controller (or network operating system), which simplifies policy implementation and network configuration evolution. However, the load pressure of the controller node increases with the forwarding of a large amount of control information. In order to solve the problem of reasonable resource allocation, most of the current solutions are designed by minimizing power consumption, maximizing the total utilization of the network, providing optimal...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a single-switch single-controller transmission control method in a software-defined network, to improve the negative impact of network bottleneck bandwidth on the overall performance of the system, and to overcome the existing software-defined network transmission control schemes that are all Extracting global network information from the controller as a basis for decision-making may reduce the robustness of the system

Images