Campus Network Upgrading And Reconstruction Plan And Security Research

The campus network of Changchun vocational institute of technology has already had acertain scale through upgrading for many times in recent years since it has been used in2002.But along with the development of the institute, the perfection of the business, and increase ofthe machine on the Internet, the network structure and the network congestion of bandwidth,the problems of network security are getting more and more serious. Student apartments, thenew library and the gym also need to be completed the connection of campus network. Theapplication system and information resource of each branch and the office do not share, butdispersedly stored, formed an "isolated information island", which is a resources waste andthe efficiency is low.Therefore, upgrading the campus network rely on the campus environment and securitysystem to satisfy the teachers and students, construct a unity, sharing and rich informationresource center and system as the core of digital campus project, improve the campus networkteaching management and service and build a good digital information environment forteachers’ activities, students, deepening the teaching reform and the transforming the mode ofrunning school.This article is based on the background of Changchun Vocational Institute of Technologycampus network upgrading Project ", the computer terminal accessing to the Internet canreach more than95%, upgrade the backbone network equipment, to fulfill the interconnectionof the schools, upgrade various faculties of the core to the convergence upgrade to Gigabitinterconnect layer Gigabit connections to meet the real-time transmission of data, audio andvideo information to fulfill the needs of all kinds of applications for network bandwidth, andwhich the network should be a security system. In the future the data center of the campusnetwork provides centralized and unified data storage services for all the users of our institute.The campus network upgrading in the design of layers model apply a typical three-tiernetwork structure to achieve dual-core and uplink and secure access; in the user authenticationsystem, we apply the popular campus802.1X certification and IMC network managementplatform; in the campus network reliability, we use the technology of device, link and routebackup; in the security of campus network, we use BT business-limiting, multi-bindingtechnology, DHCP server attack preventing, anti-virus attack, the whole network securitylinkage of EAD according to the common security threats; in the security of wireless network,we apply SSID broadcast prohibiting, MAC address filtering, authentication and encryptionand all wireless security technology; in the basis of IPv6security, we achieve to build IPv6environment inside the network and complete IPv6network business. The campus network upgrading project has been used more than a year, they are stableand secure. It has truly realized a "highly scaled, multi-service, high-security network. Theauthor participated in the project planning and implementation combined with the presentsituation and completes this essay. This article refers to the current education industry network,and mature network technology in practical applications to achieve the expected effect.The core dual-standby、brought together、Convergence of double attribution、FTP serverconstruction, Access authentication of professional, and Comprehensive prevention designto ensure the reliability, stability, and powerful data processing capability of the entirenetwork, which give the reference and guidance to campus network of similar institutes andlarge-scaled campus area.