A Research On Security Technology Of Network Virtualization Based On OpenFlow Protocol

With the rapid expansion of network applications, transmission quality of theInternet is facing a great challenge, network routers and switches, these devicesincreasingly bloated. People can replicate the success in the field of computer networks tosolve the problem of ideological premise that all problems encountered by the network,the concept of OpenFlow and SDN network protocol, which implements the dataforwarding and routing control separation for future networks provides a broadWith the industrialization of OpenFlow technology, the security issue has beenranked second question we considered, based on past experience, it is foreseeable thatwith OpenFlow technology continues to mature, it will become increasingly prominentsecurity issues, on the development of OpenFlow protocol security standards isimperative.Firstly, the basic concept of OpenFlow and SDN network and the frame to make abrief introduction, and then consider some basic characteristics with the OpenFlowprotocol, and a set of traditional security detection indicators, through the analysis of someof the security issues and the OpenFlow protocol their characteristics, SDN virtualnetwork security analysis.Article proposes two specific security issues, and VLAN stacking and VLANhopping attack, by introducing the basic concepts and principles of their, let them have apreliminary understanding, then, according to the security policy is ripe for analysis, tofind a breakthrough in the SDN network security issues. Finally, through outlook, it isclear need to focus on other security issues in the use of OpenFlow protocol virtual LAN,as well as defects in the proposed method and the future direction of research SDNnetwork security issues.OpenFlow protocol version used in this paper is1.0to port VLAN classificationapproach. Then, use a different security issues OpenFlow protocol VLAN to propose appropriate methods and solutions through VLAN security issues in case of attack by thebefore and after comparison, the OpenFlow protocol.