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IPv4地址枯竭是全球互联网进入21世纪后面临的最大挑战之一,特别是随着4G LTE网络在全球的规模部署,移动智能终端的数量也将急剧增加,地址枯竭对于网络的可持续发展的压力进一步加剧。解决IPv4地址资源枯竭问题必须引入IPv6,作为IPv4地址枯竭问题的终极解决方案,引入IPv6建设下一代互联网已经成为全球互联网发展的共识。由于IPv6协议和IPv4协议不兼容,网络大规模升级改造的难度很大。作为全球最大的宽带互联网运营商中国电信未雨绸缪很早就进行下一代互联网的技
The exhaustion of IPv4 addresses is one of the biggest challenges that the global Internet will face after the 21st century. In particular, with the deployment of 4G LTE networks on a global scale, the number of mobile intelligent terminals will also sharply increase. The pressure of address exhaustion on the sustainability of the network Further intensified. To solve the problem of depletion of IPv4 address resources, IPv6 must be introduced. As the ultimate solution to the problem of IPv4 address exhaustion, the introduction of IPv6 to build the next generation of Internet has become the consensus of global Internet development. Due to the incompatibility between IPv6 protocol and IPv4 protocol, it is very difficult for the network to upgrade on a large scale. As the world’s largest broadband Internet operator, China Telecom, early planning for the next generation of Internet technology