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All-IP承载网是以IP技术为基础的多业务承载网,是运营商网络IP化和网络转型的基础。All-IP承载网与承载Internet等业务的传统IP网有较大的区别。传统IP网在QoS,安全性,可靠性,运营管理等方面存在不足,无法达到电信级的承载要求。而All-IP承载网虽然其技术基础仍然是IP,但已经从企业级演进成电信级。本文首先介绍了IP承载网的建网模式,然后重点介绍了骨干IP承载网传送方案和城域IP承载网传送方案。
All-IP bearer network is a multi-service bearer network based on IP technology and is the basis of IP network and network transformation of operator networks. All-IP bearer network and carrying the Internet and other traditional IP network business there is a big difference. The traditional IP network has problems in terms of QoS, security, reliability, operation and management and can not meet the carrier-class bearer requirements. The All-IP bearer network, while its technology base is still IP, has evolved from an enterprise to a carrier-class. This paper first introduces the IP bearer network construction mode, and then focuses on the backbone IP bearer network transmission scheme and metro IP bearer network transmission scheme.