基于SDN的动态ServiceChaining方案  

SDN-based Dynamic Service Chaining Solution

作　　者：林鹏 Lin Peng(Fujian Ruijie Networks Co.,Ltd.,Fuzhou Fujian 350002,China)

机构地区：[1]锐捷网络股份有限公司,福建福州350002

出　　处：《信息与电脑》2020年第18期153-157,共5页Information & Computer

摘　　要：随着终端规模的不断增加和云计算的逐渐普及,园区网的业务越来越多样化,从而带来网络容量和带宽升级。基础网络升级后,园区边缘网络的专用设备(防火墙、广域网加速设备等)容易成为整个园区网的性能瓶颈点。而对这些专用设备进行升级和更换所带来的支出费用较大,同时由于这些设备都是专业的硬件设备,其部署配置和运维管理相对于交换机与路由器也较为复杂。如何利旧现有专用设备、降低改造费用成为园区网建设所需考虑的重要因素。本文通过引入SDN,阐述了如何基于SDN实现动态Service Chaining技术,实现按需引流。动态Service Chaining技术可实现网络出口智能引流、安全资源池化、网络安全协防,从而搭建一个富有弹性、高度可扩展的业务流处理平台。With the continuous increase in the scale of terminals,the increasing popularity of the Internet of Things and cloud computing,the business on the campus network is becoming more and more diversified.As a result,network capacity and bandwidth need to be upgraded.After the network infrastructure is upgraded,the dedicated equipment(firewall,WAN acceleration equipment,etc.)of the campus edge network will become the performance bottleneck of the entire campus network.The cost of upgrading these dedicated equipment is relatively high.And these special devices are usually professional hardware devices,their deployment,configuration and operation and maintenance management are also more complicated than switches and routers.How to reuse existing dedicated equipment and reduce the cost of upgrading has become an important factor to be considered in the construction of the campus network.This article explains how to implement dynamic Service Chaining technology based on SDN,achieve on-demand routing,and reuse existing dedicated equipment.Dynamic Service Chaining technology can realize the intelligent routing on network edge,the pooling of security resources,and the realization of network security assistance.So as to build a flexible,highly scalable business flow processing platform.

关 键 词：SDN Service Chaining 安全池化 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]