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在并不遥远的过去(大约4到5年以前),连接到Internet是一件相当容易的事情:只需一台路由器即可。现在,连接到Internet已经成为一件复杂的事情。如果你想在网络(含Internet)中传输重要的商务数据,除路由器外,还需要一系列的IP工具。你需要防火墙来阻止非法入侵;你需要策略增强工具、带宽管理工具、数据整合工具、负载平衡工具以便保持网络的优质服务;你还需要代理高速缓存,从而确保没有必要进行网络传输的数据不占用昂贵的WAN带宽。以上几方面是至关重要的,也是使网络管理员感到迷惑的问题源头:应该使用什么样的工具?这些工具能否协同工作?应该从哪里购买这些合适的工具?目前还没有某一个厂商可解决上述所有问题,因而网络管理员不得不与多个厂商打交道。
In the not too distant past (about 4 to 5 years ago), connecting to the Internet was fairly easy: just a single router. Now connecting to the Internet has become a complex issue. If you want to transfer important business data over the Internet (including the Internet), you need a range of IP tools in addition to routers. You need a firewall to prevent illegal intrusions; you need policy enhancements, bandwidth management tools, data consolidation tools, load balancing tools to maintain good network services; you also need proxy caching to ensure that data that is not necessary for network traffic is not consumed Expensive WAN bandwidth. The above aspects are crucial and also a source of confusion for network administrators Source: What tools should be used? Can these tools work together? Where should I buy these suitable tools? There is currently no single vendor To solve all the above problems, network administrators have to deal with multiple vendors.