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尽管ATM,快速以太网及光缆的应用已经很普及,但多数企业LAN的性能并未如期望地那样有明显的提升。许多用户在等待访问E-mail的时候部发生过问题,其中99％的情况部与过载的服务器或劣质客户机软件有关,而非与信息包过载有关。如何提高网络性能在很大程度上是一件相当模糊的事。需要分析相当多的不确定因素才能找出导致性能下降的关键原因。但令人遗憾的是当今网络的复杂性使网络管理员们对问题产生的原因两眼一抹黑,不知所措。网络分析软件在近几年有了长足的进步,但像Compuware公司的EcoScope或HP公司的OpenView仍嫌复杂,昂贵且不够全面。老道的IS销售商们把三四家的厂商的不同管理工具集合在一起,打包卖给用户,应付这种不够全面的问
Although ATM, Fast Ethernet, and fiber optic cable applications have become commonplace, the performance of most corporate LANs has not improved as much as expected. Many users have experienced problems while waiting to access E-mail. 99% of the cases are related to overloaded servers or poor-quality client software, rather than overloaded packets. How to improve network performance is to a large extent a rather ambiguous thing. There are quite a few uncertainties that need to be analyzed in order to find the key cause of the performance degradation. Unfortunately, the complexity of today’s networks has caused network administrators to be blinded by the reasons for the problems. Network analysis software has made great progress in recent years, but CompScope’s EcoScope or HP’s OpenView is still complicated, expensive and not comprehensive enough. The well-known IS vendors gather different management tools from three or four vendors and sell them to customers to deal with this incomplete question.