List of user-day presentations

This event is a Meetup (not a traditional conference): informal, community event, short presentations (about 15 minutes long), Q&A sessions and good networking possibilities with community members and IT professionals.

The organizers calculate with 250-300 participants. The program will begin at 5:30 PM and ends at around 9:30 PM. (early evening more people can attend).

• Ankert Pub: http://welovebudapest.com/clubs.and.nightlife.1/bars.1/anker.t
• Map: https://goo.gl/maps/SV7Q4
• Address: 33. Paulay Ede str., Budapest

Venue: Anker Pub.

State of the Linux Networking 2015

• Presenter: David S. Miller (Linux networking maintainer).
• Description: Updates on recent Linux networking development.

Network virtualization

• Presenter: Alexei Stavoroitov (Plumgrid)
• Description: Network virtualization in general. L2 vs L3, distributed virtual switches vs distributed virtual routers, vertically integrated network stack vs data plane/control plane model. How people use them, pros and cons.

Netfilter updates in 2015

• Presenter: Pablo Neira (Netfilter maintainer).
• Description: Updates on recent Netfilter development.

Using IPVS at Facebook

• Presenter: Alex Gartrell (Facebook).
• Description: IPVS is a corner stone of Facebook's load balancing strategy. This talk outlines our load balancing infrastructure and discusses some of the tools, systems, and custom patches we use to support hundreds of instances of IPVS routing hundreds of Gbps of ingress packets.

Logging with Netfilter and Ulogd

• Presenter: Eric Leblond (Stamus Networks, Netfilter Coreteam member)
• Description: How Netfilter logging can be used to get a better understanding of your network and detect possible issues. This talk will cover console logging as well as custom dashboards obtained via Kibana.

Netfilter debugging

• Presenter: Florian Westphal (Red Hat, Netfilter coreteam member).
• Description: high-level netfilter overview. Debug packet traversal in iptables or nft (TRACE/nftrace). conntrack tool, conntrack events, things that can be read. conntrack sysctls (mostly invalid logging).
• Timing: 20 minutes.

Performance improvements in the Linux kernel

• Hannes Frederic Sowa (Red Hat)
• Description: Overview of the recent enhancements in performance improvements in the Linux networking stack.
• File:Hsowa-performance-netstack.pdf

Open vSwitch

• Presenter: Justin Pettit (VMware).
• Description: Brief overview of OVS and future plans.
• File:OVS NFWS.pdf

firewalld, netfilter and nftables

• Presenter: Thomas Woerner (Red Hat)
• Description: What is firewalld and why does it exist. The way it is using netfilter - the good, bad and ugly things. Also the expectations from nftables and the issues I discovered so far with tests for nftables support in

firewalld. Additionally about the wish list to have a better integration with netfilter and also nftables.

ipset applications

• Presenter: Jozsef Kadlecsik (HAS Wigner Research Centre for Physics)
• Description: Applications around or on top of ipset are summarized and discussed.