Introduction to XDP, eBPF and AF_XDP
05-05, 11:00–11:45 (Europe/Berlin), Meeting Room

This talk provides a generic introduction to a set of modern Linux kernel technologies:

  • eBPF (extended Berkeley Packet Filter) is a kind of virtual machine that runs sandboxed programs inside the Linux kernel.
  • XDP (eXpress Data Path) is a framework for eBPF that enables high-performance programmable packet processing in the Linux kernel
  • AF_XDP is an address family that is optimized for high-performance packet processing. It allows in-kernel XDP eBPF programs to efficiently pass packets to userspace via memory-mapped ring buffers.

The talk will provide a high-level overview. It should provide some basics before the other/later talks on bpftrace and eUPF.

One of the original authors of OpenBSC and OsmocomBB, both of which turned into Osmocom later on. Also co-founder of sysmocom, the leading company for professional R&D around many osmocom projects and largest contributor to Osmocom.

In previous lives, I hacked [among other things] on netfilter/iptables, OpenMoko and did a lot of work in terms of legal compliance to Open Source licenses at

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