Floodlight-based management platform for SDN-based wireless network and authentication method

Abstract

The invention discloses a Floodlight-based management platform for an SDN-based wireless network and an authentication method and belongs to the field of wireless network management. The wireless network management platform is realized on an Apache server and comprises a system management module, a topology management module, a configuration management module, a user management module, an AP management module and a data statistics module. A thread used for periodically monitoring user information changes is added into a controller. The AP management module is taken as a wireless AP while functions of an OpenFlow switch are realized. The data statistics module periodically acquires network data and predicts the network status according to a data analysis module. Distributed databases synchronize the added / modified user information with each other, so that the consistency of users of the whole network is kept. The frequent user changes can be handled in real time to adapt to the management requirements for the wireless network, and the SDN controller data storage and feedback ability is added to realize unified authentication of network users.

Description

technical field [0001] The invention belongs to the field of wireless network management, relates to SDN network management, in particular to a network management and user authentication method of a centralized WLAN system based on an SDN controller. Background technique [0002] Due to its cheap and high-efficiency characteristics, wireless local area network technology is more and more widely used. At present, the wireless access point (Access Point, AP) based on the 802.11 protocol has become an indispensable and important part of the current wireless communication network. The rapid increase of wireless network traffic and the improvement of user demand have caused a large number of enterprises and places to start to deploy their own wireless local area network, and the network deployment method of a wireless access node has long been unable to meet the needs of medium and large-scale scenarios. WLAN networking based on the 802.11 protocol family Due to its convenient de...

AI Technical Summary

Problems solved by technology

Although the SDN network can use load balancing and traffic management technology to deal with the fluctuation of traffic in the network well, but for the changes of network users themselves, its management almost fails

In references [1][2], the controller even needs to be restarted to read the changes in the user list. Each restart of the controller takes several seconds. Whether it is the QoS of the wireless network or the user experience, it is very important. is unacceptable

In addition, the current SDN controllers are mainly based on real-time data acquisition, and often data information requests will bring a sharp increase in controller overhead. At this time, network performance will decline significantly, which is specifically reflected in the network response time increase, increased transmission jitter, server CPU and memory usage fluctuations, etc.

Therefore, the network stability problem also needs to be solved urgently.

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