DevConf.cz 2018 has ended

DevConf.cz 2018 is the 10th annual, free, Red Hat sponsored community conference for developers, admins, DevOps engineers, testers, documentation writers and other contributors to open source technologies such as Linux, Middleware, Virtualization, Storage, Cloud and mobile where FLOSS communities sync, share, and hack on upstream projects together in the beautiful city of Brno, Czech Republic.

When: Friday, January 26 to Sunday, January 28, 2018

Venue: Faculty of Information Technology (VUT FIT - Božetěchova 2, Brno)


  • Friday 17:15: at the venue there will be a surprise show, stick around!
  • Saturday 19:00: the social event starts at Fleda Club. TICKET IS REQUIRED. Tickets will be distributed each day at check-in. First come, first serve.
  • Sunday 17:00: there will be many prizes given away at the closing session.
Back To Schedule
Friday, January 26 • 1:00pm - 1:53pm
The Network Packet's Diary: A Kernel Journey

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Limited Capacity seats available

"Ever wondered what's happening with network packets in the kernel? What all those weird abbreviations such as “skb”, “GSO” and “NAPI” mean? Why sometimes your firewall rules are ignored?
This presentation will be your illustrated introduction guide to the kernel networking. Join a network packet on its tour through the kernel. From its arrival at the network card, through all the different layers up to the final destination: your application. And then back. And forth and back again, this time with some tricks to speed things up.
We won't look into any C code. Instead, we'll focus at how and why things work and what are the ideas behind. No previous experience with kernel coding required. It's enough to have a vague idea that network packets begin with stacked protocol headers."

avatar for Jiri Benc

Jiri Benc

Principal Kernel Engineer, Red Hat
Jiri is a Linux kernel developer with networking background. His main focus nowadays is on network virtualization and networking solutions for cloud computing.

Friday January 26, 2018 1:00pm - 1:53pm CET
B-D0206 Faculty of Information Technology (VUT FIT)
  Networking, Presentation