【摘要】 随着IPv4地址的加速消耗,IPv4网络和业务向IPv6过渡已经势成必然,但在向IPv6演进的过程中,存在IPv6内容源缺乏,IPv4/IPv6互通困难,网络设备对IPv6支持程度参差不齐等各种问题。电信运营商必须结合自身网络和业务特点,选择合适的过渡技术和策略,平滑地向IPv6演进。本文首先简要介绍各种IPv6过渡技术,然后从电信运营商的角度,分析对比网络和业务向IPv6演进的各种策略,并指出演进过程中存在的一些困难以及解决办法。更多还原

【Abstract】 As the accelerated depletion of the IPv4 address space,a massive upgrade of existing networks to IPv6 became inevitable.But there are so many problems in the process of transition to IPv6,such as,lack of IPv6 contents,difficulty of interconnect between IPv4 and IPv6,irregularity of IPv6 support for network devices,etc.Telecom carriers should choice suitable transition technologies and deployment strategy,which must be base on its network situation and services characteristic,to transit to IPv6 smoothly.This article will introduce IPv6 transition technologies first,and then analyze and compare the scenarios of transition to IPv6 for network and services.And point out the difficulties and solutions within the process of evolution.更多还原