城域网CGN部署方式探讨

摘要

The deployment of Carrier Grade NAT (CGN) can effectively improve the utilization efficiency of IPv4 addresses,and sustain the development of the existing business. this paper intends to deeply discuss and analysis on CGN how to deploy,how to bearer business,suit to what applicable scene,how to address traceability in metropolitan area network(MAN). through the above analysis Discussion,there has a good reference and guidance for the latter part of the network construction.%CGN（运营商级NAT）网关的部署可以有效提高IPv4地址的利用效率，保证现有业务发展的持续性。本文针对CGN网关在城域网的部署方式，业务承载，适应场景，以及地址溯源等进行了深入的探讨，对于后期网络建设具有很好的借鉴意义。