接入网引入SDN的影响-VRG

摘要

介绍了现有接入网存在的问题和引入SDN技术的优越性，论述了VRG基本概念及其对网络的影响，阐述了VRG部署在接入节点和BNG、独立部署和分离式部署4种实现方案及实现方案需考虑的其他问题，并对有关问题进行了总结。%It describes the problems on the current access network and the advantages on introducing SDN, discusses VRG basic con-cepts and its influence on the network, expounds the issues for consideration on 4 VRG deployment solutions, and summarizes the related issues.