Design And Implementation Of Multi-tenant Network Private Cloud Environment Based On SDN

With the rapid development of the computer and communication industries,a large number of manual operations in life have gradually been replaced by computer operations,and a variety of application software has sprung up.There are a wide variety of background operating systems supporting these applications,which are rapidly put online under the support of cloud computing and virtualization technologies.The existing traditional network structure in data center can no longer adapt to this fast iterative online scenario.The new generation of SDN-based multi-tenant network private cloud structure has made great progress in automation,security,resource reuse and other aspects compared to traditional structure,and can adapt to the rapid development of the current computer industry.In view of the above situation,The design and implementation of SDN-based multi-tenant network private cloud environment were studied in this thesis.The concrete work of this thesis includes:(1)Analyze and study the problems faced by the traditional network structure of the data center,and describe the problem that the traditional network structure cannot meet the rapid development of the business and its low degree of virtualization.The main content of VXLAN and SDN technology is analyzed and researched,and based on this,a multi-tenant network private cloud environment networking is constructed.(2)Design and implement the overall scheme of SDN-based multi-tenant network private cloud environment,and design respectively to achieve the five functions of physical structure,logical structure,security protection,multi-tenant isolation and cloud network integration.The network physical structure adopts a flat design to effectively improve the expansion capability.The network logical structure separates the forwarding plane from the control plane and make them independent with each other.We use network device virtualization technology to isolate tenant logically to improve the security of the network environment and use cloud network integration technology to improve the efficiency of computing resource deployment of the private cloud environment.(3)Briefly introduce the model and version information of the hardware device used in the network private cloud environment.Make the verification testing of connectivity between tenants and within tenants,and the availability of new network environments,and summarize the condition of private cloud usage.