网络性能的测量-----外文翻译.doc

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网络性能的测量-----外文翻译,when a network performs poorly, its users often complain to the folks running it, demanding improvements. to improve the performance, the operators must first d...
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此文档由会员 wanli1988go 发布

When a network performs poorly, its users often complain to the folks running it, demanding improvements. To improve the performance, the operators must first determine exactly what is going on. To find out what is really happening, the operators must make measurements. In this section we will look at network performance measurements. The discussion below is based on the work of Mogul (1993).
The basic loop used to improve network performance contains the following steps:
1. Measure the relevant network parameters and performance.
2. Try to understand what is going on.
当一个网络的运行效果很差的时候,它的用户通常会向网络运行商抱怨并要求提高网络的质量。为了改善网络的性能,网络操作人员首先必须确定发生了什么问题。为了找出真正的问题所在,操作人员必须进行测量工作。在这一小节中,我们来看一看网络性能的测量问题。下面的讨论以Mogul(1993)的工作为基础。
用来改善网络性能的基本循环过程包括以下步骤:
(1) 测量有关的网络参数和性能。
(2) 试图理解当前的网络状况。
(3) 改变一个参数。
这些步骤不断重复,直到网络的性能已经足够好,或者改善性能的全部空间都已经被发掘出来了。