随着互联网商业化不断深入发展、网络规模持续膨胀和新型网络应用需求不断增长,目前互联网发展面临许多挑战:地址空间匮乏;带宽瓶颈制约;网络安全漏洞多;服务质量难以保证;互联互通监管困难;新业务不易开展,难以实现创收的赢利模式;移动性支持有限,难以满足3G网络发展需求等等。 With the continuous development of the commercialization of the Internet, the continued expansion of the network scale and the ever-increasing demand for new network applications, the Internet currently faces many challenges: lack of address space; bandwidth bottleneck constraints; many network security vulnerabilities; difficulties in guaranteeing service quality; ; New business is not easy to carry out, it is difficult to achieve revenue-generating profit model; mobility support is limited, it is difficult to meet the needs of 3G network development and so on.