Research Of Network Resources Manage Technology Based On OpenStack

The popularity of cloud computing has brought more and more enterprises to participate,especially in data centers,operators have migrated traditional servers to the cloud.However,the underlying infrastructure that supports the upper application is also virtualized as virtual resources by the original physical server resources,thus increasing the utilization of various physical resources.As the most complex part of the cloud,the network has a lot of problems in terms of deployment and management,and there needs to be a better solution.The emergence of software-defined networks brings new management methods to the networks in the cloud and its architecture of transfer control can centralize and control the network resources in the cloud.Neutron,as a virtual network solution of OpenStack,also uses SDN thought,but the focus is different,the Neutron component main solution is to provide network resources and network resources ' link,and manage the network forcus on 2 and 3 layer,while SDN needs to solve the problem of network programming and flexible configuration.On the basis of the above research background,infrastructure services are researched based on OpenStack,and detailed descriptions are made from the architecture to the principle and the underlying implementation of some components.As a delivery model for infrastructure services,OpenStack pools the resources of various computers.As the most complex part of the cloud,the network needs to provide network connectivity for virtual machines,provide network isolation for tenants,and provide different network services for different users.The thesis studies the underlying implementation of computing resources by Nova components in OpenStack,and the deployment and implementation of network resources by a network component Neutron.The system function framework and system function block diagram for computing resources and network resource management are designed by using the the software architecture,operation mechanism and application development process of controller Ryu.For the data plane part of SDN,the deployment method of Linux bridge and open vSwitch are designed,and the corresponding experiment is carried out with the internal principle,network command and tool and network deployment.In the network resource management part of the cloud,the SDN controller is used to abstract the complexity of the network,and to manage the network devices in a flexible and centralized way,including the formulation of static or dynamic network strategies and the distributed rules.Finally,the implementation methods of OpenStack underlying technology and SDN related technologies are used to implement management of computing resources and network resources in the platform.