美国政府专用网络现代化测试策略

Recommendations for Success Testing Strategies for U.S. GovernmentPrivate Network Modernization Introduction Successful planning, launch and operation of networks under a broad range of U.S.Government (USG) enterprise network modernization programs require a partnerwith a proven track record, cutting-edge technology and expertise in all phases ofwireless network launch. In this white paper, we make key recommendations to fostercomprehensive achievement of U.S. Government performance and coverage goals in areliable and secure network, drawn from extensive background in the delivery of criticaltest and validation solutions. The topics of this white paper include: •Overview and Summary of Recommendations•Network Acceptance: Validating Network and Device Performance for Key Services•Infrastructure Validation: Ensuring the Infrastructure Performs and Scales•Security: Managing the Complex Threat Surfaces of U.S. Government Networks•Assurance: Actively Managing Performance During Network Operations•Spirent Technology and Platforms Supporting U.S. Government Networks Validationand Assurance•Conclusions and Takeaways•How Spirent Managed Solutions Can Help Overview and Summary of Recommendations A comprehensive testing and assurance strategy is vital to the successful launch andoperation of any mission-critical private network. That strategy should be incorporatedinto project planning ahead of network technology selection. A full lifecycle mindsetleads to achievement of performance, reliability and security goals, and effectivemanagement of project timelines. Spirent’s testing approach is informed by decades of assuring wireless networks,from 2G thru 5G. Our latest 5G-driven innovations in tools and methodologies applyfor any RAN technology direction chosen by the USG for the test enterprise networkmodernization. To ensure quality of service (QoS) in individual private networks, theGovernment must incorporate comprehensive validation solutions that enable effectivelaunch and operation of the network, devices and services. To achieve this, Spirentrecommends adopting launch and testing strategy factors in the following criticalcomponents: •Network Acceptance Testing– Ensure the network delivers on the requirements.Assess service quality and end user experience for video, voice, data, and otherprojected use cases. Identify performance issues and optimization opportunities.•Infrastructure Validation Testing– Assess infrastructure performance in the labahead of vendor selection, design, and implementation.•Security Testing– Assess network and device security before launch and as part ofa continuous security framework to identify and mitigate vulnerabilities.•Lifecycle Management and Assurance– Proactively assure service performanceand ongoing change management and fault isolation through automated activeassurance solutions. SPIRENT WHITE PAPER Network Acceptance – Validating Network and Device Performance for Key Services To ensure success in individual network initiatives, the Government needs to answercritical questions: Does the network have the capacity for the performance and QoSthat you require? Is coverage of the private network sites comprehensive, both outdoorsand indoors? Where must optimization take place to meet your requirements? For videouse cases, does the network enable delivery of reliable video feeds without freezing,buffering, or poor-quality frames? For voice use cases, can you reliably place and holdcalls and hear both parties clearly? A focus on performance will ensure that traffic flowsreliably and that the network can support target services, regardless of RAN technology. Assessment Areas.A comprehensive approach to testing the private network shouldinclude the following: •Coverage and Spectrum–Outdoor/indoor heatmaps and band utilization:Ensurecoverage and signal-to-noise performance across the entire private network site andwithin surrounding buildings. Pre-launch analysis of actual band usage and receivedsignal confirms design goals are met, identify areas that need improvement, and offeroptimization opportunities. State-of-the art tools are required to collect, analyze, andproduce heatmap views of the sites and environs. •Capacity–Loading limits and impact on performance:Assess both the radio andbackhaul capacity supported by the network with next-gen traffic generation solutions.Test with both multi-user point and spread single-user solutions. Multi-user testswill exercise the network’s ability to carry end-to-end volume. Construct the teststo mimic expected video traffic as well as future voice and data services. Capacitytesting will characterize how performance degrades with volume and pinpoint whereoptimization or investment is required. •Devices–Assess with relevant devices, phones, tablets, and IoT:Test with the devicesexpected to be on the network. If that is not possible, use solutions that allow you toemulate the traffic footprint of the required device set. •Performanc