A Nodes Sorting Algorithm By Importance In SDN

With the rapid growth of people's life and production demand for network capacity, traditional network architectures become more complex and bloated presentation, and causes difficulty of network management and development activities has grown to serious proportions affecting network development activities. To solve the above problem, SDN Technical Operations was born, and its core is the network management and data forwarding activities decoupling, to establish centralized network control center, and provides a unified programming interface for network development. Subsequently, in a variety of environments, especially for large networks, SDN technology experiments and achieved good application effect.SDN technology in bringing more convenience, because of its centralized network control features, but also with the Controller of resource optimization problems. Controller as a network centralized control point, it can directly affect the operation of stable and efficient operation of the security of the network, especially when Controller for high-load operation, can lead to network collapse.To solve these problems, we propose a SDN environment, network nodes sorting algorithm by importance. This algorithm environmental characteristics SDN network architecture, combining research network nodes in order of importance of traditional algorithms, data mining related technologies, access to network nodes quantitative indicators to evaluate the importance of a node in the network. The quantitative results can not only be applied to optimize network services and can provide support for all types of network management data.The main work includes:1. The establishment of a network of SDN architecture forwarding node information collecting basic framework. The frame can be forwarded through the network to evaluate the importance of nodes, the nodes of the network services focus on sampling, providing better network quality of service, while reducing the workload of the Controller.2. The proposed architecture of nodes in the network SDN importance forwarding sorting algorithms. The algorithm for the analysis of environmental characteristics of SDN, selecting the appropriate parameters and parameter processing method for quantitative analysis of the importance of forwarding nodes, thus achieving an important node in the network information collection aim to reaction entire network operation status.3. Through experiments verify the effectiveness of the algorithm. In the greater degree of improvement Controller while the response rate for the work, and still be able to get better network service effectiveness.