安全能力再升级，山东联通智慧光网筑牢政企业务“生命线”

Core Viewpoint - In the digital economy era, network security is essential for government and enterprise operations, with reliability serving as a cornerstone for service assurance. Shandong Unicom focuses on technological innovation to create a comprehensive OTN network, the Smart Optical Network SD-FAST, which enhances security and reliability across various sectors such as finance, government, and education [1]. Group 1: Three-Dimensional Security Upgrade - The network level employs a security architecture based on physical isolation and partitioned protection to sever risk transmission chains. The Smart Optical Network establishes a dedicated security framework independent of the public network, utilizing specialized optical cable links across all administrative levels and implementing triple security management in core facilities [2]. - The pipeline level relies on OTN technology to create dedicated transmission channels that ensure data transmission security. These channels are completely isolated and do not share any resources, effectively preventing cross-network penetration of public viruses and malicious attacks [3]. - The algorithm level focuses on the final line of defense for data transmission, utilizing international standards and dynamic key management to fortify data security. The Smart Optical Network employs the G.709 encryption algorithm for end-to-end data encryption, with automatic key updates every hour to minimize data leakage risks [4]. Group 2: Full-Link Reliability Upgrade - To provide a stable foundation for the three-dimensional security architecture, the Smart Optical Network optimizes reliability across routing, equipment, and operations, achieving a network availability rate of over 99.99% [5]. - The routing design incorporates a redundancy scheme with dual routing as the primary method and multiple detours as a supplement, ensuring no single point of failure in core cities [5]. - The operations system has been upgraded to an "intelligent early warning + rapid response" model, with a self-developed maintenance platform that monitors over 20 key indicators in real-time, achieving an alarm accuracy rate exceeding 98% [5]. Group 3: Practical Validation of Strength - The three-dimensional security advantages of the Smart Optical Network SD-FAST have been validated in a project involving a university's education and research network, where it provided a dedicated solution that ensured data security and transmission stability [6]. - The network has supported high-demand applications such as remote academic conferences and cross-school research collaborations without any incidents of data leakage or transmission interruptions, earning high praise from faculty and students [6]. Group 4: Future Applications and Innovations - The Smart Optical Network is widely applied in various sectors, including government, finance, and manufacturing, ensuring secure data transmission for social security and healthcare systems, protecting core transaction information for financial institutions, and supporting data collection for industrial internet applications [7]. - Looking ahead, Shandong Unicom plans to deepen innovations in security and reliability technologies, exploring the integration of quantum encryption with OTN networks to provide superior network services for the digital transformation of enterprises in Shandong [7].