基于QUIC协议的高效边缘服务访问  

Efficient Edge Service Access Based on QUIC Protocol

作　　者：吴梦颖 夏令明 张晨 Wu Mengying;Xia Lingming;Zhang Chen(Southeast University,Nanjing 210096,China;Purple Mountain Laboratories,Nanjing 211111,China)

机构地区：[1]东南大学,南京210096 [2]网络通信与安全紫金山实验室,南京211111

出　　处：《信息通信技术》2021年第4期32-38,共7页Information and communications Technologies

摘　　要：在边缘计算场景下,云边需要支持应用数据互访。而边缘节点常常置于内网环境,出于成本和安全性的考虑,并无公网IP暴露,导致云端的应用或用户无法通过kubernetes和边缘计算平台现有的网络方案访问到部署在边缘节点的服务。边缘节点可能处在高丢包率、高时延等网络不稳定的环境,在弱网环境下,访问边缘服务难以保持稳定。文章针对云端访问边缘服务的需求和边缘网络环境复杂不稳定等因素,设计并实现了基于QUIC协议的边缘服务网关。最后对边缘服务网关进行了功能测试和性能测试,测试结果表明边缘服务网关实现了边缘服务访问的能力,基于QUIC协议的实现方案在弱网环境下性能有明显优势,优于基于websocket的实现方案两倍以上。In the current open-source edge computing platform,the edge nodes in intranet environment have no public IP exposure for the consideration of cost and security,resulting in that's unable for cloud application or users to access service deployed at the edge nodes through the existing network solutions of kubernetes.The edge may be in an unstable network environment such as high packet loss rate and high latency.In a weak network environment,it is difficult to maintain stable access to edge services.In order to solve the problem about insufficient function of cloud access to edge service on edge computing platform and considering the complexity and instability of the edge network environment,an edge service gateway based on QUIC protocol was designed and implemented.At the end of the thesis,the edge service gateway was tested,and the test results show that the edge service gateway realizes the ability to access edge services,and the performance based on the QUIC protocol is more than twice as good as websocket in a weak network environment.

关 键 词：边缘计算 云计算 云边协同 KubeEdge QUIC 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]