Campus Network Upgrade Project And Refined Operation And Maintenance Research

With the advent of the “big data” and “cloud era” of the Internet,the university's information business is rapidly developing,and the campus network that hosts the business is also facing tremendous pressure.Campus network is the foundation of the university information construction,and it is the carrying platform of the campus network business.It affects the development of digital campus and smart campus in colleges and universities,and restricts the reform of teaching models and teaching methods in the new situation.The construction of the independent college is affected by issues such as funding and construction concepts.The initial construction considerations are not perfect,resulting in many problems in the campus network: The network structure is not clear,service data is not isolated,maintenance work is complicated,etc.The campus network upgrade plan presented in this paper adopts a flat structure networking mode based on BRAS.The network hierarchy is clear and the functions are clear.The following BRAS devices operate on the Layer2.Different groups and different service data are isolated by VLAN division.Establish QoS mechanism to ensure the priority of important service forwarding,and at the same time,it can better support multicast technology and realize the carrying capacity of multiple services.In the deployment of wireless networks,the AC is deployed on the core to implement unified management of AP devices.Wireless networks and wired networks In-depth integration;through the cleanup of network structure,VLAN isolation,and PPPoE authentication,ARP attacks,broadcast storms,and loops are resolved.Through the deployment of integrated gateways,campus networks are highly secure;Multi-link aggregation,BFD + VRRP and other technologies to strengthen the stability of the campus network;provide a variety of authentication methods for different scenarios,and adopt different billing plans through the BRAS,deployment of centralized network management equipment,log management system,behavior audit Such as to ensure that the campus network can be refined operation and maintenance.By deploying dual-stack protocols at the nodes,the campus network has the ability to smoothly evolve to SDN and IPv6...