一种星地协同的路由协议处理架构方案

A satellite-ground cooperative routing protocol processing architecture scheme

在基于IP路由交换的卫星网络中,由于受宇航级器件能力限制,大规模路由协议的处理往往成为制约网络规模的瓶颈。针对这一问题,在分析IP网络中协议数据包特点的基础上,设计了一种星地协同的路由协议处理架构方案。方案设计了新的IP路由处理架构和业务流程,增加了IP数据包的星地协同处理机制,在少量改动现有载荷设计的前提下实现对IP包的识别与分类,通过专用星地链路实现将路由协议数据包发送到地面处理。测试结果表明,相比传统处理方案,星地协同的路由协议处理架构方案当路由条目数相同时,在路由收敛时间上可体现出巨大优势;当收敛时间相同时,收敛的路由条目数极大提高。该方案突破了目前卫星IP网络的规模瓶颈,极大提升了网络规模的上限,在大规模星地协同组网、一体化网络架构中具有较高应用价值。

In satellite networks based on IP routing and switching,the processing of large-scale routing protocols often becomes a bottleneck restricting the scale of the network due to the limitations of aerospace level components.Aiming at this problem,based on the analysis of the characteristics of protocol packets in IP network,this paper designs a Satellite-Ground cooperative routing protocol processing scheme.The scheme designs a new IP routing architecture and operation flow,adds a Satellite-Ground cooperative processing mechanism of IP packets,realizes the identification and classification of IP packets on the premise of a small amount of changes to the existing design,and transmits the routing protocol packets to the ground for processing through a dedicated Satellite-Ground link.The test results show that,compared with the traditional processing scheme,the Satellite-Ground cooperative routing protocol processing scheme can show that when the number of route entries is the same,it has a great advantage in the routing convergence time.And when the convergence time is the same,the number of convergent routing entries is greatly increased.The scheme breaks through the bottleneck of the current satellite IP network scale,greatly improves the upper limit of the network scale.It has high application value in large-scale Satellite-Ground cooperative networking and Satellite-Ground integrated network architecture.