PNAT——面向移动互联网的双重翻译过渡技术

[摘要] 基于中国移动提出的双重翻译过渡技术——PNAT，对解析层面的3种双重翻译技术：BIH、464xlat、4rd的特点以及各技术间的共存互补关系进行了深入探讨。双重翻译技术能使得现阶段网络中基于IPv4的用户和应用无需修改就能运行在IPv6网络里，从而提高内容提供商、业务提供商对IPv6的支持力度；双重翻译技术能使得业务流量被主动引导到IPv6网中，从而促进网络运营设施在短时间过渡到IPv6。

[关键词] IPv6过渡技术；翻译；BIH技术；464xlat技术

[Abstract] In this paper, we propose a double-translation transition technology called PNAT. We describe three kinds of double-translation technologies at the analytic level— BIH, 464xlat and 4rd— and the way in which they complement each other. Double-translation allows numerous IPv4 applications to be supported in IPv6 networks without any modifications being needed. It allows content and service providers to be supported on IPv6 networks. Traffic can be steered to IPv6, which allows prompt transitioning from IPv4 to IPv6.

[Keywords] IPv6 transition technology; translation; BIH technology; 464xlat technology