subject: ZTE campus network optimization problems and solutions - network, optimization - Education Industry [print this page] ZTE campus network optimization problems and solutions - network, optimization - Education Industry
1, Campus Network Overview Universities and the close relationship between the network, the network was first carried out experiments in the campus and the success of many new network Technology Was the first success in the campus network, and then only into the community.
The other hand, as a "high-tech incubator," the university, knowledge, Talent Highland, very rich in resources, more eager than others network of new technologies, new network applications, want to have a high-performance, stable and reliable campus network to promote themselves in research, academic progress.
Since the official launch of the 1994 China Education and Research Computer Network (CERNET) since, CERNET hundreds of schools have been connected with the domestic, for the majority of students and researchers to provide a new network environment. October 1998, China Education and Research Network, officially launched the second phase, to complete the second phase in 2000, in addition to connecting 1000 University of objectives, on the conditions of primary and secondary schools also provide access to Internet services.
1 problem in the current campus network
Campus Network More than a decade old, many school campus, there aging equipment, brand mix, private drawing random access and so on. Institutions combined with previous years, several school network makes up a network, led many institutions to run the campus network is very unstable and a lot of problems, network management center busy with the sudden failure of the network, miserable.
2 network optimization goals * Type the network from the interconnection network can manage the transition to
* To trusted network from the network managed transition
* Anonymity network from the network transition to the real-name system
2, ZTE campus network optimization program
1. Syllogism network optimization Network optimization, including "strengthening their bones, their body strong, full of its spirit" of the three different elements and stages, as described below:
* Strengthening their bones?? Platform optimization. First, the network load optimization of hardware platforms, from equipment selection, restructuring to proceed, the construction of a high-performance, high bandwidth, reliable campus network load platform.
* Zhuang their body?? Management control. Secondly, through enhanced network management and access to certification, to clean network environment, the purpose of optimizing the network space, so that spam useless. Application to real popular.
* Filling their spirit?? Resource integration. Integration of network applications currently scattered in the network platform based on the realization of "triple play" " Distance Education "" Online Class "and other typical applications for the network for the knowledge wings.
2 Platform Optimization?? Strength of their bones and muscles
Core layer Optimization Proposed a core set of each campus Switch . The core of the original equipment, as the diminished capacity to meet the needs of core equipment, therefore, proposed to move together under the layer, so convergence device.
Each campus core switch between single-mode fiber through the campus of the composition of ZESR Ethernet ring or fully connected network connection, select a campus core switch as the main core switches, and export Router Connection.
For large campus network, the core layer gradually using route-based model to build the backbone network core layer.
Convergence layer optimization Existing campus network is based on the way to be stacked together. Small number of information points in the case, by way of a simple stack advantage. But when the information point increase in the number of times, as many as 48 devices 7-8 units stack, the switch will result in the export processing power far exceeds capacity. Thereby seriously affecting network performance.
Therefore, the proposed buildings in the information point less, used networking stack approach, the structure is clear and simple. Large number of information points in the student hostel, recommended way of building together. And one each in each building cluster node, cluster node with the core switch, the access switch connected to the ring by ZESR Ethernet aggregation switches, and all information points through the Fast Connect.
Advantages of using aggregation switch: When the network traffic continues to increase when the price drop once the Gigabit interfaces to the appropriate level, they can put together - the link between the core upgrade to Gigabit, thereby greatly increasing the network expansion capabilities.
Subnet rational division of functions Campus Network Application
rich, relatively speaking, divided into dormitories, office administrative, teaching and research, Digital Library , Card, faculty quarters of different types of networks, in order to ensure normal teaching and research office of the normal, it is necessary for proper function of the school division of the network, divided into different functional subnet, gateway access in the child set the corresponding control strategy to guarantee the normal operation of the various functional subnets.
Different size according to the campus network, you can use different techniques to divide functions subnet. Small Campus Network Topology simple ways you can use VLAN segmentation; the number of medium ranging from the existence of Campus Network Campus area, formed a certain scale of the campus network backbone layer, divided by MPLSVPN technology to different subnets; Large Campus Network large and numerous campus area, you can divide the combination of physical subnet and the way MPLSVPN rational division of functions subnet.
Access layer optimization Access layer devices, consider the following aspects:
802.1x authentication support capabilities. As the campus network using 802.1x authentication and accounting methods, therefore, the access layer devices the ability to support 802.1x is particularly important.
VCT line test. As the access link is very scattered, the largest part of the maintenance workload, use of VCT cable test function, can effectively reduce the workload of network maintenance is an important consideration.
The port isolation. Each user can only vertical transmission of information, not horizontal to visit. This is a network security assurance.
Equipment noise. As the huge number of access layer devices, so if the device is noisy, it will affect the health of network management, using quiet equipment, is a good option.
Lightning performance. Although most of the campus network cabling are in interior decoration, but in lightning-prone season, lightning damage on the access layer device, is still the most important task to maintain. Mine property, is a measure of an important indicator of access layer devices. Export
network optimization
Campus network operators have Cernet and exports, exports of the future may have IPv6 or any other one or more ISP access, in order to share traffic and improve access to the response speed of the internal campus network can access the flow of external resources
