Research And Implementation For Autonomic Control Plane System

With the rapid development of electronic and computer technology,the Internet has penetrated into every aspect of people's production and life,and is closely related to people's lives.However,with the continuous expansion of the Internet,how to manage a large number of network devices efficiently and conveniently has become an urgent problem to be solved.The traditional way of network equipment management and maintenance mainly relies on manual.Therefore,there are shortcomings such as high operating cost and low efficiency,which no longer meets the development trend of high efficiency,convenience and intelligence pursued by today's society.Therefore,some scholars have pointed out that by using of the concept of autonomy in traditional networks enables devices in the network to achieve self-management,which undoubtedly provides a novel way to solve the above problems,and opens the prelude to the research on autonomic networks as well.In 2014,the ANIMA working group of the IETF proposed an autonomic network model in which three specific components of the Autonomic Control Plane,Bootstrapping Remote Secure Key Infrastructures and Generic Autonomic Signaling Protocol were defined.Based on the model,this thesis focuses on the design and implementation of the functions of each module in the autonomic control plane.This thesis first introduces the background and research status of autonomic networks and autonomic control planes,expounds the architecture of autonomic networks,and analyzes the relevant technical principles used in autonomic control planes briefly,mainly including RPL,IPsec and IKEv2 protocol.Secondly,in the process of neighbor discovery of the autonomic control plane,there are some defects,such as the neighbor discovery message is not concise enough which leads to the message is too long and the new node can't join the secure autonomic domain quickly which leads to the convergence speed of the new node adjacency list is too slow.A neighbor discovery scheme with high efficiency and fast convergence is proposed.This scheme mainly designs two new mechanisms,namely,establishing adjacency list with concise neighbor discovery message and efficient access of new nodes to autonomic domain.Then,on the basis of research the principle and function of each module of the autonomic control plane in detail and combing the specific workflow of each module,the design of each module in the automonic control plane system is completed.The thesis realizes the configuration of node ULA address and the construction,maintenance of node adjacency.By transplanting and modifying the Unstrung project,completes the estalishment of RPL route,meanwhile modifies the project to slove the problem the route was not available during the downstream route construction,moreover implements some interface related to the configure information during DODAG construction.In the secure tunnel module,based on StrongSWAN,establishs the IPsec secure tunnel among nodes by transplanting,modifying and implementing dynamic self-configuration of its configuration files.Additionally,constructs the test platform,completes the function of each module of Automonic Control Plane,meanwhile compares the following two perfomance indexes in old and new mechanism: the length of neighbor discovery message and the convergence time of new node's adjacency table.The results of test show that the new mechanism can reduce the length of neighbor discovery message effectively,and speed up the convergence speed of new node's adjacency table.Finally,at the end of the thesis,summaries the whole thesis,and prospectes the future research work and direction of the autonomic control plane.