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当前IP网络和非IP网络长期共存,协议体系和通信体制互不相同,异构网络的互联互通困难.针对这个问题,首先从异构网络间连接的关键节点——网关出发,通过将网关底层的数据转发和控制功能分离,并将网关上层的管控功能和应用服务功能抽取出来,提出了一种基于可编程控制网关的一体化网络体系结构.该系统结构将网络分为一体化网络协同管控单元、子网间可编程控制网关节点和异构子网3层,设计了基于典型异构网络的互联协议栈,以集成不同的网络协议.进一步在一体化网络构架的基础上,给出并分析了异构网络的抽象与描述、基于可编程网关的异构子网智能适配技术、一体化网络的资源管理与协同优化理论等关键技术.最后基于民用航空通信给出了一个异构互联示例,表明一体化网络体系结构的可行性.
IP network and non-IP network coexist for a long time, the protocol system and communication system are different from each other, heterogeneous network interworking is difficult.To solve this problem, The data forwarding and control functions are separated, and the upper management functions and application service functions of the gateway are extracted, and an integrated network architecture based on the programmable control gateway is proposed. The system structure divides the network into an integrated network coordinated management and control Unit, subnet and gateway and heterogeneous subnet 3 layers, designed based on the typical heterogeneous network interconnect protocol stack to integrate different network protocols.Furthermore on the basis of the integrated network architecture, given and This paper analyzes the abstract and description of heterogeneous network, the intelligent adaptation technology of heterogeneous subnet based on programmable gateway, the key technology of resource management and collaborative optimization of integrated network.Finally, based on civil aviation communication, a heterogeneous interconnection Examples show the feasibility of an integrated network architecture.