适用于卫星通信的以太网虚拟专线设计

Design of Ethernet Virtual Private Line for Satellite Communication

针对岸船间采用卫星信道隔离传输多个专网业务的应用需求,基于卫通Modem的接口特性,分析了以太网复分接设备在组网方案、互连接口、易用性和透明转发等方面的特点,提出了基于类VLAN标签的以太网虚拟专线解决方案,对隔离方案、复分接原理、转发流程、数据安全、自身安全和业务QoS保证等关键技术进行了设计,测试和实际应用表明方案具有可行性,经济效果显著,具有较好的推广价值。

According to the application requirement for isolated transmission of multiple private network services by satellite communication channel between shore and ship,and based on the interface characteristics of satellite communication Modem,the features of Ethernet multiplexing/demultiplexing devices in networking scheme,interconnection interface,ease of use and transparent forwarding are analyzed,and a VLAN-like virtual private line solution is proposed.The isolation scheme,multiplexing/demultiplexing principle,forwarding process,data security,self-security and QoS assurance are designed.The experiment results prove the feasibility and cost effectiveness of the scheme as well as its value for wider application.