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ATM接口技术、IPOA技术是 ATM IP路由器完成信息包转发的关键技术。在 ATM IP路由器中 ,ATM网卡驱动软件一方面要初始化和控制多块 ATM网卡 ,以组织数据的发送和接收 ;另一方面要完成 IPOA的功能 ,向上层协议提供服务。本文根据开发路由器中 ATM网卡驱动软件的实践 ,详细介绍了一种 ATM网卡的工作原理和软件模块。
ATM interface technology, IPOA technology is the key technology that ATM IP router finishes the packet forwarding. In the ATM IP router, ATM network card driver software on the one hand to initialize and control multiple ATM network card to organize the sending and receiving data; the other hand, to complete the function of the IPOA to provide services to the upper protocol. According to the practice of developing ATM network card driver software in the router, this paper introduces in detail the working principle and software module of an ATM network card.