关键词: 实践教学系统, 全光接入网, 虚实结合, 通信业务开通, 网络故障排除 

Abstract: Due to the lack of practical teaching resource of optical communication network, an all-optical access network practical teaching system based on virtual-real combination is designed. The communication service opening is regarded as main task, a real practical teaching system is built based on all-optical access network commercial equipment. The application layer server and communication user terminal are simulated by software and hardware combination. Configuration information from application layer server to communication user terminal through all-optical access network is planned and the success of various communication services opening is verified. The network troubleshooting is regarded as main task, a virtual simulation experiment teaching system of all-optical access network is developed by utilizing virtual reality technology. The virtual campus application scenarios including central office, fiber distribution terminal and university-enterprise joint laboratory are constructed. Concentrated presentation of optical distribution network, multi-service gateway, optical line terminal and application layer server related network troubles is realized. With the design and application of this practical teaching system, the teachers’ construction ability of optical network practical teaching resources is improved, and the students’ practice and innovation ability to solve complex problems in the application of optical network is cultivated. 

Key words: practical teaching system, all-optical access network, virtual-real combination, communication service opening, network troubleshooting