基于ICMP扩展的链路状态检测方法  

Link State Detection Protocol Based on ICMP Extension

作　　者：周明[1] 郦苏丹[1] 王宏[1] 

机构地区：[1]国防科技大学计算机学院学院,长沙410073

出　　处：《计算机系统应用》2017年第11期266-270,共5页Computer Systems & Applications

摘　　要：传统的ICMP在主机存活检测、端口扫描及网络拓扑发现等网络信息获取方面已经有了广泛应用.但检测信息单一,方法不灵活,网络局限性大等问题依然突出.本文就基于ICMP协议提出了一种携带链路接口信息的连通性检测方法.主要是在原始ICMP协议的基础上,增加一个可变长度的链路状态字段,用于存储接口设备标识和带宽负载.论文重点解决如何利用ICMP回显应答报文携带传输这些接口信息给源端以及中间节点的接收处理.通过此方法能有效的帮助我们了解整个网络拓扑和带宽延迟,填补了传统的连通性检测方法缺少网络链路状态信息这一空白.The conventional ICMP has been widely used in network information acquisition such as host survivability detection, port scanning and network topology discovery. But the problems like less detection information, the inflexible method, and limitations in network, and other issues are still prominent. In this paper, we propose a connectivity detection method based on ICMP protocol to carry link information. Mainly based on the original ICMP protocol, we add a variable-length link-state field for storage of interface device identification and bandwidth load. This paper focuses on how to use the ICMP Echo Reply to carry these interface information to the source and intermediate nodes of the receiving process. This method can effectively help us understand the entire network topology and bandwidth delay,filling the gap that the traditional connectivity detection method lacks network link state information.

关 键 词：ICMP 链路状态 接口信息 网络拓扑 连通性检测 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]