摘要： 卫星接入Internet最好的解决方案就是在卫星通信中使用IP技术。该文结合某型号星载计算机的研制工作，探索IP及其路由技术在卫星通信中的应用；在实时操作系统RTEMS下开发了ATM网络设备驱动，实现了IP over ATM技术以支持IP协议，实现了动态路由协议RIP。针对星载应用的特点，在设计和实现中就协议栈简化、安全性等方面进行了适当的优化，成功地在星载计算机中实现了路由器功能。

关键词: IP, ATM网络, RTEMS, 星载计算机, 路由

Abstract: The best way to bring satellite into Internet is using IP technology in the satellite communication. During the design and research of some onboard computer, this paper explores the use of IP protocol and its routing technology in satellite communication. It develops ATM driver for the RTOS RTEMS, implements IPOA to support IP protocol, and implemented RIP. It tries to simplify the protocol stack and improves its security for onboard usage. It successfully makes onboard computer work as a router in space.

Key words: IP, ATM network, RTEMS, onboard computer, routing

中图分类号: 

• TP393