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Friday, February 7
 

09:50 CET

Linux Kernel Network Stack Walkthrough
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This presentation features a walk through the Linux kernel networking stack covering the essentials and recent developments a developer needs to know. Our starting point is the network card driver as it feeds a packet into the stack. We will follow the packet as it traverses through various subsystems such as packet filtering, routing, protocol stacks, and the socket layer. We will pause here and there to look into concepts such as segmentation offloading, TCP small queues, and low latency polling. We will cover APIs exposed by the kernel that go beyond use of write()/read() on sockets and will look into how they are implemented on the kernel side.
Speakers
avatar for Thomas Graf

Thomas Graf

Principal Software Engineer, Red Hat
Thomas Graf has been a Linux kernel developer for the last 10 years working on a variety of networking subsystems. His current focus is on network virtualization. He contributes to various open source projects including the Linux kernel and Open vSwitch.

Friday February 7, 2014 09:50 - 10:30 CET
Lecture room D1
  Networking

10:40 CET

NetworkManager for the Enterprise
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Why not run NetworkManager on all your systems? We've made huge leaps in complex networking configuration and functionalty over the last years, and best of all, NetworkManager will surprise you less! With new support for bridging, bonding, VLANs, Infiniband, Team, tun/tap, macvlan, gre, and more and a powerful new command-line interface, NetworkManager provides a consistent platform for network configuration and monitoring from laptops to the enterprise. Want it to be more static? It can be! Want it to respect changes you make with command-line tools? It will! Come learn where NetworkManager is heading, and how it can work for you today.
Speakers
avatar for Dan Williams

Dan Williams

Manager, RHEL Networking, Red Hat
Dan is leading the OVN team. He is one of the architects of the OCP networking. Previously he has worked on Network Manager and made it ubiquitous for all linux distros like RHEL, Fedora, Ubuntu, Suse, Centos. Dan also lead the development of Multus, the plugin layer for Kubes, and... Read More →

Friday February 7, 2014 10:40 - 11:20 CET
Lecture room D1
  Networking

11:30 CET

The consequences of finger swiping (openvswitch)
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The buzzword of the moment is cloud. However, there is a whole open source infrastructure supporting it. The presentation will highlight some of the new developments in the networking stack and briefly explain some networking solutions used in production environments like NIC bonding, SR-IOV, openvswitch, vlan, IPVS, NIC offloading features and others.
Speakers
avatar for Flavio Leitner

Flavio Leitner

Principal Software Engineer, Red Hat, Inc.
Flavio Leitner brings almost 15 years of experience with software development, support and distribution maintenance. He is a software engineer at Red Hat, tech leader, focusing on Open vSwitch, DPDK and the kernel networking stack.

Friday February 7, 2014 11:30 - 12:10 CET
Lecture room D1
  Networking

12:30 CET

tc and cls_bpf: lightweight packet classifying with BPF
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This talk will give a walk-through of the traffic control layer and in particular packet classification with cls_bpf, a BPF engine based filter for classful qdiscs. It will walk through starting from iproute2 layer down to the kernel's BPF JIT compiler. Talk is in English.
Speakers
DB

Daniel Borkmann

Linux Kernel Engineer, Red Hat
Linux C plumbing in different areas, e.g. Linux kernel, netsniff-ng, lksctp-tools, uemacs, tlsdate, and others.

Friday February 7, 2014 12:30 - 13:10 CET
Lecture room D1
  Networking

13:20 CET

VDSM pluggable networking
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oVirt's hypervisor component, VDSM (Virtual Desktop and Server Manager) is in charge of leveraging the power of the FOSS OS and virtualization stacks and expose it in an easily consumable API for the Manager component. Up until now, the networking part of it only worked in EL6/Fedora distributions. In this talk, we'll go through the changes that have happened in networking so that now we are compatible with any GNU/Linux distribution, and how you can make your own vdsm networking plugin in a few steps.
Speakers
avatar for Antoni Segura Puimedon

Antoni Segura Puimedon

Principal Software Engineer, Red Hat
Working on network virtualization since 2012. I have contributed to oVirt, MidoNet and OpenStack Kuryr. I'm the current PTL of Kuryr and I am aiming to make OpenStack the best platform to run OpenShift on.

Friday February 7, 2014 13:20 - 14:00 CET
Workshop room L1 - B410
  Networking   Virtualization

14:10 CET

Firewalld - Extension And Integration
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Build work groups for firewalld extensions and integration into other projects.
Speakers
avatar for Thomas Woerner

Thomas Woerner

Principal Software Engineer, Red Hat
Principal Software Engineer

Friday February 7, 2014 14:10 - 15:40 CET
Workshop room L2 - C525
  Networking   Security
 
Saturday, February 8
 

15:00 CET

oVirt - Neutron integration
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As the prominent open-source data center virtualization solution, oVirtrelies on a powerful and easy approach to configuring a data center'snetwork. By leveraging the advanced network capabilities offered byNeutron, the OpenStack Networking project, oVirt's maintainers aim tobring this field even further, allowing data center administrators touse advanced capabilities while maintaining the simplicity of oVirt'snetwork management approach. Join us in this session, and discoverhow oVirt currently leverages Neutron and the road-map to future networkvirtualization in the Data Center.
Speakers
avatar for Antoni Segura Puimedon

Antoni Segura Puimedon

Principal Software Engineer, Red Hat
Working on network virtualization since 2012. I have contributed to oVirt, MidoNet and OpenStack Kuryr. I'm the current PTL of Kuryr and I am aiming to make OpenStack the best platform to run OpenShift on.

Saturday February 8, 2014 15:00 - 15:40 CET
Lecture room D1
  Networking   Virtualization

16:40 CET

DDoS protection using Netfilter/iptables
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Can Netfilter/iptables really be used for DDoS attack protection? I though it was too slow for that.

In this talk I will present the recent developement, for mitigating DDoS attacks using Netfilter/iptables, the Linux kernels firewall facility. The talk will cover the recent SYNPROXY modul and other less know techniques, and the needed kernel parameter tuning.
Speakers
avatar for Jesper Dangaard Brouer

Jesper Dangaard Brouer

Linux Kernel Developer, Red Hat
Jesper Dangaard Brouer is Principal Kernel Engineer at Red Hat, and is part of the team that maintains the Linux Kernel Network Stack. He is working from the comfort of this home in Denmark, outside Copenhagen. He has participated in several invitation only developer conferences... Read More →

Saturday February 8, 2014 16:40 - 17:20 CET
Lecture room D1
  Networking
 
Sunday, February 9
 

09:00 CET

glibc network name resolution issues, solutions and alternatives
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I've been researching various issues in name resolution an the getaddrinfo() function for quite some time. Now we're coming up with an alternative implementation and API. With this new project, we target multiple goals. While the original motivation was to provide a framework to test and eventually resolve glibc getaddrinfo() issues, we're now coming up with a bunch of new use cases including standalone use for asynchronous address resolution and replacing any application's getaddrinfo() call for testing purposes using a wrapper program.
Speakers
avatar for Pavel Šimerda

Pavel Šimerda

Software Engineer, Red Hat
After learning a bit of programming, I was attracted by the networking world. I got from petty Pascal/C++ projects through web development using ugly PHP and later Python, to a freelancing work with most of the projects in server administration, network equipment configuration and... Read More →

Sunday February 9, 2014 09:00 - 09:40 CET
Lecture room D2
  Networking

09:50 CET

DNSSEC (not only) on workstations
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The support of DNSSEC in server software it pretty good, but there are still missing parts of DNSSEC support in client side software. Client side support is important, since some applications can benefit from DNSSEC validated DNS responses (such as SSH fingerprint validation or TLS/SSL certificates validation). The talk will be about the current situation in Fedora, used projects (unbound dnssec-trigger combination) and how it is all integrated with NetworkManager. We will reveal also future plans for better integration with NetworkManager and even better user experience.
Speakers
avatar for Tomas Hozza

Tomas Hozza

Principal Software Engineer, Red Hat
Tomas is a Principal Software Engineer at Red Hat's Image Builder team, where he explores the mysteries of building OS images for various footprints. In his free time, Tomas likes to code in Python 3 and play with various IoT devices and sensors. When he's not sitting behind the computer... Read More →

Sunday February 9, 2014 09:50 - 10:30 CET
Lecture room D2
  Networking
 
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