【摘要】 ＩＰ计费一直是ＣＥＲＮＥＴ用户关心的问题。该文就目前几种用于ＩＰ计费的主要网络技术作简要介绍。其中，利用ＳＮＭＰ的方法以网络管理协议ＳＮＭＰ为基础统计ＩＰ流量；网络探针ＰＲＯＢＥ的方法则是在网络正常使用的基础上，在不影响任何网络带宽，不增加网络设备负载的情况下，通过监听的方法获得网络通信，统计ＩＰ流量：利用ＮＥＴＦＬＯＷ的方法是以目前Ｃｉｓｃｏ公司在其网络设备上提供的ＮＥＴＦＬＯＷ技术为基础，进行ＩＰ流量统计。最后，分析几种方法的特点，以及对通过这几种方法已经获得的ＩＰ流量统计应用于其他网络管理领域的分析。更多还原

【Abstract】 IP accounting is always concerned by CERNET users. This paper will briefly introduce several technologies that can be used in IP accounting. In it, the first method is to sum up the IP traffic based on SNMP, the current most common network management protocol on Internet. The second method is to use network probe to get the original communications and then gets the statistic. That has no effect on network bandwidth and network devices. The third method is based on the network now technology proposed by CISCO system. And then, this paper will analyze and compare these three methods. At last, it will give advises on further usage of the data acquired for IP accounting. That is significant to other network management functions.更多还原