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针对延迟容忍的空间信息网络与其他异构网络的互联,目前还没有有效的对策.设计基于DTN的互联方法,在具有异构协议代理功能的DTN转发节点实现中,扩展Bundle层功能和运作规范,在空间通信链路环境中实现了CCSDS协议体系、TCP/IP协议体系、DTN协议体系的功能一体化.设计半物理仿真环境模拟空间通信场景,在其中对比了采用传统IP互联方法和该DTN互联方法进行不同业务传输的性能,并体现了DTN互联方法在数据保管能力上的优越性.
There is no effective countermeasure for the interconnection between delay tolerant spatial information network and other heterogeneous networks.An interconnection method based on DTN is designed to extend the function and operation of Bundle layer in the implementation of DTN forwarding nodes with heterogeneous protocol proxying , The function integration of CCSDS protocol system, TCP / IP protocol system and DTN protocol system is realized in the environment of space communication link.A semi-physical simulation environment is designed to simulate the space communication scenario, in which the traditional IP interconnection method and the DTN Interconnection method for different business performance of the transmission, and reflects the DTN interconnect method superiority in data storage capabilities.