IPv4的局限性

IPv4 A Predicted Shortage

IPv4的设计时代是在Internet仅仅作为研究机构之间通讯的方式之时，但现在已经接近了它的使用极限。在2002年，通讯实体的数量已经与我们这个星球的人口相当。两且这仅仅是一个开始。使用Internet地址的设备还在不断的激增当中。装备有传感器和多媒体设备的未来汽车将成为接入Internet的一个本地网络——这样的汽车在全球已经超过了8.8亿辆。

IPv4 was designed at a time when the Internet was only a means of communication between research laboratories, but it is now approaching its limits. In 2002, the number of communicating objects was already equal to the population of the planet. objects with Internet addresses are proliferating. Equipped with sensors and multimedia equipment, the car of the future will itself be a moving local network connected to the Internet and there are already more than 800 million vehicles in the world. PCs, which represent the largest usage of the IP protocol, are not to be outdone. Already 10% of the world＇ s population are Intemet users; however, in China, they are only about 6%. Yet China is catching up faster and faster…