IP卫星网络专用测试网桥设计与实现  

Design and Implementation of Special Test Bridge for IP Satellite Network

作　　者：赵伦 乔庐峰 陈庆华 王雷淘 ZHAO Lun;QIAO Lufeng;CHEN Qinghua;WANG Leitao(Army Engineering of PLA,Nanjing Jiangsu 210001,China)

机构地区：[1]陆军工程大学,江苏南京210001

出　　处：《通信技术》2021年第8期1910-1916,共7页Communications Technology

摘　　要：为了解决卫星网络测试中无法采用通用的标准测试设备直接测试的问题,设计并实现了一种网络互联协议(Internet Protocol,IP)卫星网络专用测试网桥。该测试网桥采用全硬件方案实现,端口速率峰值能够达到千兆比特量级,单端口能够支持1 000个以上业务流的模拟,且延时和抖动较小,能够满足当前卫星网络测试需求。测试网桥通过现场可编程门阵列(Field-Programmable Gate Array,FPGA)实现以太网帧与卫星链路帧的相互转换,可以直接与运行了专用测试软件的计算机、路由器及宽带网络测试仪相连,完成被测设备的协议、性能和业务交换能力等测试。整个设计在Xilinx Virtex-6 xc6vlx240t上实现,并采用Modelsim SE-64 10.6d进行行为级仿真分析。In order to solve the problem that general standard test equipment cannot be used for direct testing in satellite network testing, a special test bridge for IP(Internet Protocol) satellite network is designed and implemented. The test bridge is implemented with a full hardware scheme. The bit rate for each port can reach 1 Gbps, and each port can support more than 1000 test flows with small delay and jitter, which can meet the test requirements of current satellite networks. The test bridge can realize the conversion between Ethernet frames and satellite link layer frames through FPGA(Field-Programmable Gate Array), and can directly connected with computer running special test software to realize the test of special protocols, routers, and broadband network testers to test the performance and throughput of the satellite on board switches. The whole design is implemented on a Xilinx xc6 vlx240 t FPGA, and behavioral-level simulation analysis is carried out by Modelsim SE-64 10.6 D.

关 键 词：专用测试网桥 地址学习 协议转换 现场可编程门阵列(FPGA) 

分 类 号：TN927[电子电信—通信与信息系统]