Construction Of Flat Campus Network Experimental Environment

After the 20th century, network technologies come into rapidly development phase, as is the campus network construction model has substantial changes also. With the growing popularity of wireless networks, a lot of devices need for a fast and stable wireless network access, thereby proposed more highest requirements for campus network stability, at the same time has many new network applications take strongest dependencies for users. Campus network has gradually evolved from typical local network for studying, to research, and rich integrated service platform. This quality of service, management of the campus network size and opertaions capacity put forward higher requirements. In order to satisfy these requirements, recent years' campus network infrastructure design managers carried on many new attempt, which is a flat network gradually being approved solution. For become graduated majestor of computer science, students must keep up with technology trends, learn and acquire the relevant technologies. Due to high construction cost of a flat network, as known that funding of education sectories very limited, through the purchase of new physical devices to build flat campus network environment for student's research is impractical. In order to resolve this kind of contradiction, this dissertation build a flat network based in a virtualized environment, so this kind of problem has been solved. In the campus network virual lab environment, students can learn advantages of flat architecture and related technologies such as IPOE, QinQ, DHCP, RADIUS. In practical work as soon as possible for the future adaptation to flat network building and management principles to lay a good foundation.This diploma includes the following:1. Briefly campus network development, analysis of the campus network situation, pointed out that the traditional campus network problems and propose solutions;2. Details of the architecture of the campus network flattened several related technologies such as IPOE, QinQ, DHCP, Radius protocol, and highlights the difference between IPOE and PPPOE 802.1X authentication mode;3. Shaanxi Normal flat network as the background, elaborated flat core campus network architecture, user authentication and the entire process;4. Key stated building process of flat campus network virtual environment, including network topology, configuration of the nework and backend layer devices, authentication system deployment, Portal system development.The primary innovation of this dissertation is use virtualization platform to achieve a complete campus network experimental environment:the broadband access server is Juniper MX virtual machine implementation, use Huawei virtualization platform to research of access and aggregation switches, use FreeRADIUS to build RADIUS server, for Portal server selected nodejs. And on top of it to achieve a flat architecture network with clients'isolation choose QinQ, IPoE+Portal use for clients' authentication management process.