一种以太网重复报文网络风暴处理方法  

A design of manchester codec based on clock extraction

作　　者：宋一丁[1] 王振华[1] 田巧红 宋彦锋[1] 朱付强 SONG Yi-ding;WANG Zhen-hua;TIAN Qiao-hong;SONG Yan-feng;ZHU Fu-qiang(Research and Development Department of Installation Platform of Xuji Group Co.,Ltd.,Xuchang 461000,China;Henan Mobile Xuchang Branch,Xuchang 461000,China)

机构地区：[1]许继集团有限公司装置平台研发部,河南许昌461000 [2]河南移动许昌分公司,河南许昌461000

出　　处：《电子设计工程》2020年第12期140-143,共4页Electronic Design Engineering

基　　金：国家电网公司总部科技项目资助(5222LK17000Z)。

摘　　要：在以太网通讯领域,重复的报文被大量转发这种网络风暴是最常见的一种网络风暴,网络设备功能异常、或者交换机、路由器的错误连接,都可能会导致这种网络风暴。本文利用重复的以太网报文CRC校验码是相同的这种网络风暴特征,以及广泛应用于计算机的组相联Cache理论,提出了一种部署在以太网网络设备的报文接收端,用来识别这种网络风暴的方法。网络风暴识别相关数据结构以及判断逻辑简单高效,易于通过FPGA、C语言等各种编程方法实现。In the field of Ethernet communication,duplicate messages are forwarded in large quantities.This kind of network storm is the most common one.The malfunction of network equipment,or the wrong connection of switches and routers may lead to this kind of network storm.In this paper,we propose a method for identifying the network storm by using the same CRC check ncode of repeated Ethernet messages and the group⁃connected Cache theory,which is widely used in computers.The data structure and judgment logic of network storm identification are simple and efficient,which can be easily realized by various programming methods such as FPGA,C language and so on.

关 键 词：网络风暴 CRC校验码 CACHE HASH算法 

分 类 号：TN919[电子电信—通信与信息系统]