With the advent of Cloud Computing, general-purpose workloads have been transformed into a set of cooperating micro-services, meeting the rapid, frequent and reliable delivery of very large and complex applications. Telcos have been trying to apply the same approach for network-oriented workloads, keeping into account the complexity and the high requirements needed. Among the leading technologies in this direction, eBPF represents an interesting option. eBPF is an in-kernel framework that also allows to implement data-plane services but it poses some limitations that prevents its applicability in some cases, which can be found for example in the Rate Limiter network function, which should be always present if policies are to be applied on the traffic.