一种支持VC交叉的OTN板卡设计

An OTN Board Design Supporting VC Crossover

随着现代网络技术的不断演进、通信技术的迅速发展,传统的SDH设备因为容量小、集成度低等一系列问题从而面临着退网。但是对于高价值小颗粒的业务,SDH依然是必然之选。面对这种现状,本文从硬件设计和软件架构这两方面,介绍了一种相关的融合了VC交叉的支路盘设计方案,该方案能够利用现有OTN设备资源,无需更换线路盘,以做到对现有网络的最小修改。通过测试发现,该板卡在业务满配时能够正常工作,保护倒换时间可达到少于50ms的要求,满足现网业务需求。

With the continuous evolution of modern network technology and the rapid development of communication technology,traditional SDH equipment faces network retreat due to a series of problems such as small capacity and low integration,but for high-value small-granule business,SDH is still the inevitable choice.Faced with this situation,this paper introduces a related tributary disk design that combines VC crossover from the aspects of hardware design and software architecture.This solution can utilize existing OTN equipment resources without replacing the linecard.To achieve minimal modifications to existing networks.The test found that the board can work normally when the service is fully configured,and the protection switching time can reach 50 ms,accords with the needs of the existing network services.