Reserch On SDN Controller And Networking Technology For Cloud-ntwork Integration

Infrastructures such as network,cloud computing are important driving forces for the innovation and development of the information and communication network field.The effective combination of network and cloud computing can further promote the development of the information and communication industry.Cloud-network integration has gradually become a technological development direction for building a new generation of information infrastructure.Cloudnetwork integration hopes to integrate cloud computing,which carries business operations,and networks that provide interconnection technology,to form a unified and efficient resource service system.Breaking the situation that traditional cloud computing resources and network infrastructure are relatively independent and closed to each other,and promoting the development of multi-cloud collaboration and multi-network management are the main directions of cloud-network integration technology development.In addittion,around the issue of highly collaborative and flexible connection between cloud and network,how the network can better provide unified,agile and elastic services and support for cloud platform business is also a challenge that needs to be focused on.In view of the above problems,this paper proposes a cloud-network integration-oriented SDN cloud-network collaborative controller solution based on software-defined networking and network function virtualization technologies.Based on the SDN concept,it solves the problem of unified management and scheduling of cloud-network resources.The contents and corresponding results are as follows:(1)Based on SDN/NFV,the architecture design and implementation scheme of cloud-network collaborative control platform for cloud-network integration is proposed,and the module design and implementation of SDN controller are completed.The platform architecture is centered on the SDN cloud network controller responsible for network resource management and the NFV orchestrator that orchestrates computing and storage resources.It senses and collects specific business needs upwards,and allocates cloud and network-related resources through various standard interfaces to achieve Unified management and control of cloud and network.In order to realize the flexible management and control of network resources,the model design and specific implementation scheme of the SDN cloud network controller are further completed.The SDN cloud network controller is logically divided into a core control unit,a configuration management unit,and a collection and analysis unit,which can be connected to a variety of cloud platforms based on different technical architectures.In addition,in order to meet the needs of the platform to transmit deterministic services,considering that the TSN(Time-Sensitive Networking)network technology is gradually spreading in the deterministic network field,the unified configuration and management of the integration of the TSN network and the SDN network are also studied,so as to Realize centralized and unified configuration of TSN switches in the TSN network,integrating multiple network forms of cloud networks,TSN networks,and SDN networks.(2)A hybrid cloud network management method based on SDN technology is proposed.The cloud orchestrator plug-in perceives the cloud platform network requirements,and realizes the configuration and management of various cloud platform networks.The centralized programmability of network components greatly reduces the complexity of hybrid cloud integration.The technical implementation is difficult,so the hybrid cloud management model has more obvious advantages in implementing heterogeneous hybrid cloud deployment.Then,based on this method,the container cloud platform Kubernetes and the virtual machine cloud computing management platform OpenStack are seamlessly interconnected.The container and virtual machine share the same underlying forwarding network,forming a unified resource pool of hybrid cloud network.(3)In order to verify the feasibility of the relevant models and schemes proposed in this paper,the network and the test environment were built for experimental verification.The experimental tests are mainly divided into two parts:hybrid cloud networking scheme verification and TSN networking scheme verification.The network test experiment results show that the SDN controller implemented in this paper is feasible and effective in hybrid cloud network management and control,service interconnection,and TSN deterministic network configuration,which lays a reliable foundation for the further development and evolution of cloud-network integration.