基于VC-4的SDH信道加密技术研究与实现

Research and Implementation of SDH Channel Encryption Technology Based on VC-4

同步数字体系网络作为一种成熟的传送技术,虽然受到光传送网、分组传送网和增强型以太网等新兴网络技术的威胁,但由于该技术持续多年资金的累计投入,同步数字体系技术仍然在电力、金融、交通、政府和军事等领域广泛应用。基于同步数字体系网络的加密技术值得探讨与研究,从同步数字体系网络现状、同步数字体系信道加密技术原理、同步数字体系加密设备部署方式及同步数字体系加密优势和局限性等方面进行了全面分析,有助于对同步数字体系网络加密防护的实现和应用提供参考和借鉴。

As a mature transmission technology,SDH networks are challenged by emerging network technologies such as OTN,packet transmission networks,and enhanced Ethernet,but the technology is still widely used in the power,finance,transportation,government,and military fields due to sustained funding for many years.The encryption technologies based on SDH networks are worth exploring and researching.This paper comprehensively analyzes the status quo of SDH network,the principle of SDH channel encryption technology,the deployment method of SDH encryption device,and the advantages and limitations of SDH encryption,which provides a good reference for the implementation and application of encryption protection in SDH networks.