摘要
电信网络虚拟化对电信运营商来讲是挑战和机遇并存,如何实现传统网络向SDN/NFV新网络的转型,成为摆在运营商面前的一道难题。为帮助运营商提升网络运维效率,降低运维成本,提高产业竞争力,文章从云网融合环境以及电信云特点等方面对其网络架构和部署要求进行了分析和归纳,认为电信云是基于虚拟化、云计算等技术实现云网融合的一个场景,以NFV、SDN为主要技术,并结合电信云网络的特点开发网络功能,可以构建一个资源可全局调度、能力可全面开放、容量可弹性伸缩、架构可灵活调整的云化平台;电信云所需的自动化网络功能,是构建该云化平台的关键技术之一,它保证了运营商网络在云化转型过程中多个层面的网元之间通信的自动化调整、运维和网络安全防护。文章可以为运营商研制电信网络虚拟化方案提供参考和借鉴,促使运营商最终实现网络的软化和云化。
Telecom network virtualization is both a challenge and an opportunity for the operators. How to realize the transformation from traditional network to SDN/NFV is a difficult problem for them. In order to help the them improve network operation and maintenance efficiency, reduce operation and maintenance cost, and improve industrial competitiveness, this paper analyzes and summarizes their network architecture and deployment requirements from the aspects of cloud integration environment and telecom cloud characteristics. Here is the conclusion. Telecommunication cloud is a scene of cloud and network convergence which is realized on the basis of virtualization, cloud computing and other technologies. A cloud-based platform could be built, on which resources can be globally scheduled, ability can be fully open, capacity can be flexibly changed, and architecture can be easily adjusted, which takes NFV and SDN as the main technologies and develops network functions by combining with the characteristics of the telecom cloud network. The automatic network function required by the telecom cloud is one of the key technologies to build the cloud-based platform. It ensures the automatic adjustment, operation and maintenance, and network security protection of the communication among the network elements at multiple layers in the cloud-based transformation process of the operators’ network. This paper can provide references for the operators to make telecommunication network virtualization plan and urge them to realize the softening and cloud-based network eventually.
作者
毕以峰
Bi Yifeng(ZTE Corporation, Nanjing 210012, China)
出处
《信息通信技术》
2019年第2期26-31,共6页
Information and communications Technologies
关键词
云网融合
虚拟化
电信云
网络架构
NFV
SDN
Cloud Network Convergence
Virtualization
Telecom Cloud
Network Architecture
NFV
SDN
