Research And Implementation Of SDN Control Technique To Achieve Locator/identifier Split Network

In the traditional TCP/IP protocol,IP addresses indicate both the identity and location of the node,leading to the expansion of the core routing table,poor mobility,multi-host and so on.Locator-Identifier separation network(LISN)has been proposed to solve these problems.However,deploying LISN in the traditional network architecture is inflexible.Moreover the scalability and mobility of LISN on top of traditional network are not good.At the same time,with the rapid development of the networking technique,the traditional network architecture is becoming more and more difficult to meet the needs of network development.Therefore,SDN(Software Defined Network)is proposed,which provides centralized control,unified interface,flexible programming,etc.Besides,this technique has been widely applied in traffic engineering,virtualization,mobility support and many other fields recently.This paper focuses on the implement of LISN base on SDN and the traffic load balancing between identifier networks.The main contributions of this thesis are as follows:1.Due to the poor scalability,low address utilization,and inflexible deployment of current LISN,we have proposed tunnel encapsulation mode LISN in the SDN architecture.We have also design and implement IDNetwork prototype system,the results show that IDNetw can implement LISN and effectively support the identification of communication mechanism,making the network deployment more flexible.2.Since LISN had poor support for mobile nodes and networks,we have Proposed two level tunnel encapsulation(TLTE)mode o support mobility.We have also design and implement IDNetwork_Mob prototype system,which can support mobile nodes and networks effectively.3.For the traffic balancing between the entrances of LISN w have proposed a maximum flow regulation strategy based on SDN centralized control.And build a simulation laboratory environment.The results show this stategy can reduce adjusting flow number effectively.In the test,there was about 1.8% of the total flow need to be adjusted,and the average time of the adjustment of the total flow is 1.8 flow.In this paper,we make a new attempt to realize the LISN with SDN architecture.And our results can promote the development of the networking technique to some extent.