基于TCP/IP网络环境下网卡冗余热备的实现  

Under the TCP/IP the Design of NIC Redundant and Hot-Standby

作　　者：张士民 

机构地区：[1]中移铁通有限公司枣庄分公司网络部,山东枣庄277000

出　　处：《信息技术与信息化》2016年第11期26-28,共3页Information Technology and Informatization

摘　　要：使用网络驱动程序接口规范(Network Driver Interface Specification,NDIS)编写了中间层驱动程序(Intermediate Driver,IMD),实现了容错双以太网环境下的与具体网卡硬件无关的双网卡冗余热备份。分析了双网卡冗余热备系统的基本功能需求,介绍了中间层驱动程序的层次结构、框架和数据包操作,绑定了两块物理网卡虚拟为一块虚拟网卡,通过截获并修改Windows数据包的方法实现了网卡切换前后共用一个IP地址,达到了网卡热备切换的目标。热备的实现与上层应用程序无关,达到了实时性要求。使用主流测试调试软件WinDbg、Sniffer pro和DriverStudio实现了系统的开发、调试、安装与测试。The paper using the Network Driver Interface Specification （Network Driver Interface Specification, NDIS） intermediate drivers prepared （Intermediate Driver, IMD）, to achieve the dual LAN redundancy hot backup and specific NIC hardware-independent fault-tolerant dual Ethernet environment. It analyzes the basic functional requirements of dual-NIC redundant hot standby system, and introduces the hierarchy of intermediate drivers, frameworks and packet operation, two physical NICs bound to a virtual network adapter virtual, by intercepting and modifying Windows packet the way to achieve the shared IP address before and after a switch card designed incremental improvement algorithm adjusts the IP datagram header checksum, reached the target NIC hot standby switchover. Hot Standby Implementation and the upper application-independent, to the real-time requirements. Mainstream testing using debugging software WinDbg,Sniffer pro and DriverStudio implement system development, testing, installation and testing.

关 键 词：网络驱动器接口标准NDIS 双网卡热备 驱动程序调试 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]