QoS management system and method of SDN controller

Abstract

The invention relates to a QoS management system of a SDN controller. The system comprises a network state database module, an application information extracting module, a QoS routing computing module, a network topology management module, a link state discovery module and a flow table automatic issuing module; the network topology management module is used for generating and managing the network topology structure information; the link state discovery module is used for acquiring the link state of the data plane; the network state database module is used for storing the network topology structure information and the link state information acquired from the topology management module and the link state discovery module; the application information extracting module is used for extracting the data packet information and sending the data packet information to the QoS routing computing module; the QoS routing computing module is used for computing the data flow transmission path according to the network state information extracted from the network state database module and the data packet information input by the application information extracting module; the flow table automatic issuing module is used for computing to generate a corresponding flow table according to the data flow path information.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to an SDN controller QoS management system and method. Background technique [0002] With the continuous development of cloud computing and big data-related technologies, new services pose more and more challenges to traditional networks centered on IP technology. Whether it is the frequent migration of virtual machines in cloud computing or the constant large amount of data interaction in distributed big data computing, new network services put forward higher requirements for the quality of network QoS. In the network architecture with IP as the core, it is difficult to meet the end-to-end service quality requirements of today's network services, both in terms of traffic scale and functional interfaces, and the many QoS routing models proposed by researchers are difficult to apply Deploy in existing networks. [0003] SDN - Software Defined Networking separates the forw...

AI Technical Summary

Problems solved by technology

[0004] Although there are QoS management systems and methods based on SDN controllers in the prior art, there is a defect that only the network state is considered, and the characteristics of the application data packets cannot be reflected in real time, that is, the prior art cannot combine the network state and the application characteristics. As a result, more refined and accurate QoS management cannot be performed

Images