Information technology--Telecommunication and information exchange between systems--Protocol combinations to provides and support the OSI network service--Part 3: Provision and support of the connectionless--Mode network service

• GB/T16506.；3-1996信息技术系统间的远程通信和信息交换提供和支持osi网络服务的协议组合第三部分：提供和支持无连接方式的网络服务