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为了支持我国航天测控通信网的IP(互联网协议)化以及未来发展,对欧空局的航天任务操作通信网OPSNET(操作支持通信网)的新进展进行了研究。首先回顾了OPSNET网络发展历程中的里程碑事件(完成网络IP化,调整网络拓扑结构,通过载荷分担模式超越网络链路的带宽极限),之后介绍了该网络面临的高数据速率挑战及多个备选解决方案,详细介绍了最终选用的基于MPLS(多协议标签交换)技术的网络设计。OPSNET网络向MPLS迁移的方案经实验室环境验证后分步实施,经多个层面的验证及实际运行证明,采用MPLS技术后,以较低的成本实现了很好的网络性能。未来OPSNET将以此为基础部署更多的MPLS链路,并可能增加加密业务。OPSNET通信网的新进展值得我们关注和借鉴。
In order to support the development of IP (Internet Protocol) and future development of China’s space network for communications and measurement control, a study was made on the new progress of the European Space Agency’s operational mission of OPSNET (Operational Support Communication Network). First of all, we review the milestones in the development of OPSNET network (completing network IP, adjusting the network topology and exceeding the bandwidth limit of the network link in the load sharing mode), and then introducing the high data rate challenge and multi-backup Select the solution, detailing the final choice of network design based on MPLS (Multiprotocol Label Switching) technology. OPSNET network to MPLS migration program verified by the laboratory environment step by step, verified by the multi-level verification and actual operation, the use of MPLS technology, with a lower cost to achieve good network performance. Based on this, OPSNET will deploy more MPLS links in the future and may increase encryption business. The new progress of OPSNET communication network deserves our attention and reference.