大型校园网多ISP连接的研究与实现

研究了大型校园网的特征,指出目前校园网多ISP连接常采用的基于NAT和源地址策略路由的方案在对网络应用的支持、性能和灵活性等方面存在不足。利用一种新的拓扑结构和NAT规则,使NAT服务器能够区分校园网内主动发起访问的数据包和对网外请求进行回应的数据包,实现了基于NAT和普通路由的方案,并以武汉科技大学校园网为背景给出了实例。新方案简化了网络管理,能更充分地利用多ISP连接的上行带宽,更加灵活地支持大型校园网所需要的多样化的应用类型。

Study and Implementation on Large Scale Campus Network Multi - ISPs Connection

The predominant solution to connect campus network with multiple ISPs is based on NAT and source address policy routing,which is deemed as poor performance,deficiency application supporting while lack of sophistication.Study on the demand of large scale campus networks gives such finding.An alternate architecture based on NAT and standard routing mechanism is devised based on a new topology structure and NAT policy.Request packets originated from campus network can be distinguished from response ones by NAT server at such approach.An empirical example is depicted while the WUST campus network was served as background.Network management can be simplified while uplink bandwidth provided by multi-ISPs can be sufficiently employed,and more applications can be supported sophisticatedly in the new approach.