#18   P4 meets 5G

In this demo, we show the new capabilities of the open source P4 compiler called T4P4S-16 (pronounced as “tapas”) developed by our research group at ELTE. Its new features (including the support of P4-16) will be demonstrated through a complex telecom use case, namely a 5G UPF (user plane function). The user plane function handles the critical data plane processing of packets between radio access network consisting of user equipments (UEs) and eNodeBs (eNBs), and the data network (e.g. Internet). The 3GPP specification defines a wide set of functionalities associated with the UPF, including access control, GTP-U tunnel encapsulation/decapsulation, bearer lookup, service data flow (SDF) mapping, per-flow QoS, guaranteed bit rate, maximum bit rate, forwarding of packets to/from packet data network, etc.