摘要
路由环路不仅会影响业务的正常使用,而且会极大地浪费网络资源,降低数据转发性能。简述二层/三层网络设备的数据处理原理,对网络设备的防环机制、处理机制进行研究;对IP地址规划、NAT映射、默认路由、双点双向重分发、网络规划等原因造成的路由环路进行剖析;提出如何规避可能产生路由环路的场景,以期帮助设计人员、网管人员、运维人员识别、查找和解决现网环境中的路由环路问题,以提升现网数据转发性能及规避网络攻击。
Routing loops can not only affect the services but also waste network resources and reduce the performance of data forwarding.The data processing principles of the two-tier/three-tier network equipment are briefly described and the anti-ring mechanism and processing mechanism of the network equipment are studied.Meanwhile,the causes of routing loop such as IP address planning,NAT mapping,default routing,two-point two-way redistribution,network planning,etc.are analyzed.Furthermore,it is proposed how to avoid such scenarios that may cause routing loops in hope of helping the designers,network administrators,operation and maintenance personnel in identifying,finding and solving routing loop in existing networks in order to improve the performance of data forwarding and avoid network attacks.
作者
周学兵
费振豪
韩熠
刘螺辉
Zhou Xuebing;Fei Zhenhao;Han Yi;Liu Luohui
出处
《铁道通信信号》
2022年第3期49-55,共7页
Railway Signalling & Communication
基金
中国国家铁路集团有限公司科技研究开发计划重大课题(K2019G050)。
关键词
网络设备
路由环路
场景分析
防环机制
路由规划
Network equipment
Routing loops
Scene analysis
Ring protection mechanism
Route planning
