摘要
首先介绍了NFV的概念及其产生的背景,并将NFV和SDN的概念进行了对比。在标准进展方面,对NFV标准组织近2年的研究成果以及NFV标准组织的最新进展进行了介绍。在概述电信运营商IP网络现状后对IP网络的NFV应用需求进行了分析。在此基础上,重点对NFV在IP城域网业务控制层的应用进行了探讨,提出了NFV设备在业务控制层的应用,可能会经历单机阶段、池组化阶段、云化阶段等3个阶段的观点,并介绍了每个阶段的网络特征和对NFV的功能需求。
The concept and background of NFV were introduced, and concept of NFV and SDN was compared. In the scenario of standard progress, the recent two years＇ achievements and the latest research progress of NFV standard organization were introduced.After status overview of carriers＇ IP networks, NFV application requirements for IP networks were analyzed. Then the NFV application of IP MAN service control layer were discussed and emphasized. The idea was proposed that NFV application in the service control layer may go through three stages： single stage, pool stage and the cloud stage. In each stage, the characteristics of the network and the requirements of NFV were also described.
出处
《邮电设计技术》
2015年第2期11-16,共6页
Designing Techniques of Posts and Telecommunications
关键词
NFV
IP网
数据网
城域网
骨干网
SDN
NFV
IP network
Data network
Metropolitan network
Backbone network
SDN
