一种用于增强5G核心网络韧性的动态UPF故障恢复机制
A Dynamic UPF Fault Recovery Mechanism for Enhanced Resilience in 5G Core Networks
- Isfahan University of Technology（伊斯法罕理工大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文提出一种基于OpenAirInterface的5G核心网动态UPF故障检测与恢复机制，通过应用层会话恢复和故障感知选择，减少停机时间、低丢包并快速恢复服务，提升网络韧性。
AI中文摘要：
确保用户面功能（UPF）的容错性对于维持5G网络中的服务连续性至关重要，尤其是在延迟敏感型应用日益普及的背景下。本文提出了一种在基于OpenAirInterface的5G核心环境中实现动态UPF故障检测与恢复的新机制。该方法引入了一种应用层会话恢复机制，以确保服务连续性并在UPF故障期间最小化中断。实验结果表明，所提出的机制减少了UPF停机时间，同时保持了低丢包率并实现了快速服务恢复。在TCP和UDP流量测试中，连接在几秒内得以恢复，从而最小化了服务降级。此外，我们的故障感知型UPF选择机制通过考虑近期故障历史，提升了系统的长期韧性。结果凸显了我们的轻量级框架在提高5G网络整体可靠性方面的有效性，使其成为对网络稳健性的宝贵贡献。
英文摘要：
Ensuring fault tolerance in the User Plane Function is essential to maintain service continuity in 5G networks, particularly as latency-sensitive applications become more prevalent. This paper presents a novel mechanism for dynamic UPF failure detection and recovery within an OpenAirInterface-based 5G core environment. The approach introduces an application-layer session restoration mechanism to ensure service continuity and minimize disruptions during UPF failures. Experimental results demonstrate that the proposed mechanism reduces UPF downtime while maintaining low packet loss and enabling rapid service recovery. In tests with TCP and UDP traffic, connectivity was restored within a few seconds, minimizing service degradation. Furthermore, our failure-aware UPF selection mechanism improves long-term system resilience by considering recent failure history. The results highlight the effectiveness of our lightweight framework in improving the overall reliability of 5G networks, making it a valuable contribution to network robustness.
