通常用户在选择ISP时,特别关心ISP的国际信道容量以及国内的互连情况,因为信道容量大小会影响用户所得到的服务质量,因此国内四大网也正致力于提高信道的容量。实际上用户所得到的WWW服务质量是由网络连接的响应时间和获取信息的有效性决定的,目前一种新的技术—Web Cache在网络建设和网络服务中正越来越受到人们的重视。 Users usually pay particular attention to the ISP’s international channel capacity and domestic interconnection conditions when selecting an ISP. Because the channel capacity affects the quality of service provided by subscribers, the four major domestic networks are also working to increase the channel capacity. In fact, the WWW service quality obtained by users is determined by the response time of network connection and the availability of information. Currently, a new technology, Web Cache, is getting more and more attention in network construction and network service.