SD-Core × eUPF: XDP Datapath with In-Kernel Usage Metering
This release details the integration of SD-Core with eUPF, transitioning from a userspace packet processing path to a high-performance kernel datapath utilizing eBPF/XDP. End-to-end usage reporting, quota enforcement, and PFCP Session and Association management are now implemented at kernel speed for accurate per-subscriber accounting and policy control. The standard SD-Core control plane remains unchanged while the user plane is extended with in-kernel processing and configurable subscriber limits. This implementation showcases improvements to 5G core component efficiency and scalability without sacrificing standards compliance, leveraging open-source projects OMEC SD-Core and eUPF.