九十年代以来 ,Ｉｎｔｅｒｎｅｔ以惊人的速度迅速扩展 ,骨干网上的Ｉｎｔｅｒｎｅｔ业务量每 6～ 9个月翻一番 ,远远超过摩尔定律每 18个月翻一番的速度。为了适应数据业务量超过话音的发展趋势 ,适应客户 -服务器应用方式引起的网络流量分布变化以及ＩＰ业务特有的自相似性和 Since the nineties, the Internet has rapidly expanded at an alarming rate. Internet traffic on the backbone network doubles every 6 to 9 months, far exceeding the rate at which Moore’s Law doubled every 18 months. In order to adapt to the data traffic over the voice of the development trend, to adapt to client-server applications caused by changes in the distribution of network traffic and IP-specific self-similar and business