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随着计算机通信及我国民航运输事业的发展,中国民航通信数据网不断更新换代。中国民航数据网作为全国民航机场良好的专线服务和数据传输的载体和保障,承担的诸如全国机场专线业务网络、语音拨号、程控电话交换机联网、不同规模和服务质量要求的虚拟专用网络等重要业务也逐渐增强[1]。民航不同部门需要采用多种不同的技术,从自身需求角度进行内部网络的组建的特点,对民航通信数据传输技术提出了更高的要求。一、ATM技术简介
With the development of computer communication and civil aviation transportation in China, China Civil Aviation Communication Data Network is constantly updated. China Civil Aviation Data Network, as the carrier and guarantee for good private line service and data transmission of Civil Aviation Airport of China, undertakes the important business such as the national airport green line business network, voice dialing, program-controlled telephone exchange network, virtual private network of different scale and service quality requirements Also gradually increased [1]. Different sectors of civil aviation need to adopt a variety of different technologies, from the perspective of their own needs for the formation of the internal network features, civil aviation communications data transmission technology put forward higher requirements. First, ATM technology introduction