Information technology - telecommunications and information exchange between systems - intermediate system to intermediate system intra - domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless - mode network service iso 8473 信息技术.电信和系统间信息交换.与提供非连接模式网络业务协议一起使用的中间系统对中间系统域内路由信息交换协议