生成树协议的工作原理及改进  

Working Principle and Improvement of Spanning Tree Protocol

作　　者：杨学[1] Yang Xue(College for the Deaf,Tianjin University of Technology Technical,Tianjin 300384,China)

机构地区：[1]天津理工大学聋人工学院,天津300384

出　　处：《信息与电脑》2020年第11期180-181,共2页Information & Computer

摘　　要：为了保证网络连接的可靠性、稳定性或是其他一些原因,网络中经常存在冗余链路,同时为了解决冗余链路形成环路导致网络瘫痪引入了生成树协议。基于此,笔者主要介绍了生成树协议在交换网络中的作用及其工作原理,包括根桥的选举、端口角色的确定和端口状态的迁移,同时分析了生成树协议的不足并介绍了相应的改进方法快速生成树协议和多生成树协议。In order to ensure the reliability,stability or other reasons of network connection,redundant links often exist in the network.Meanwhile,the spanning tree protocol is introduced to solve the problem that redundant links form loops,which leads to network paralysis.This paper mainly introduced the function and working principle of Spanning Tree Protocol in switching network,including the election of the root bridge,the determination of the port role and the migration of the port state.At the same time,the paper has analysed the shortcomings of Spanning Tree Protocol,and introduced the corresponding improved methods,Rapid Spanning Tree Protocol and Multiple Spanning Tree Protocol.

关 键 词：生成树协议 STP RSTP MSTP 

分 类 号：TP317.1[自动化与计算机技术—计算机软件与理论] F272[自动化与计算机技术—计算机科学与技术]