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Opening Remarks (godotfest2025)
Welcome to GodotFest 2025 - the first entry of the GodotFest event series! Join us as we kick off two exciting days of talks, workshops, and community connections. We’ll introduce the event, thank our sponsors, and set the stage for an amazing conference celebrating the Godot Engine and its vibrant community. Get ready to dive into technical insights, creative presentations, hands-on workshops, and networking opportunities with fellow Godot enthusiasts from around the world. Whether you’re a seasoned developer or just starting your journey with Godot, this is your moment to be part of something special. Licensed...
An introduction to qGIS for current Google Earth Users (denog17)
The defacto standard in network planning is to use Google Earth for dealing with a large collection of kmz and kml files that are provided by partners. Sadly this can quickly introduce spontaneous combustion of your computer or at least of google earth, as the data collection can grow quite quickly and that software as probably never meant to deal with such an enourmous amount of geodata. Luckliy there is a widely adopted open source GIS software called qGIS that can help with exploring large amounts of data. I will give a quick intro what...
Day 1 Closing (denog17)
That's a wrap on Day1, time for the social!
Licensed to the public under http://creativecommons.org/licenses/by/4.0
about this event: https://pretalx.com/denog17/talk/MVDVUL/
Video:denog17-81768-eng-Day_1_Closing_hd.mp4
Entering the big Cloud Game: A journey of ups and downs towards sovereignity at scale (denog17)
This talk would be held by my two colleagues: Michael Bayr (artcodix) and Gerhard Bader (Yorizon Cloud) Yorizon Cloud is the joint venture of HOCHTIEF PPP Solutions and Thomas-Krenn.AG In these times of global political and technical threats and disruptions, we are driven by our spirit of digital sovereignty when we design a new European, de-centralized, sustainable and custom-made cloud infrastructure. In their talk, my two colleagues would give an insight into the technologies we apply, open source based and European to the core. One basic focus will be the network technology and the standardized stack that...
Forwarding packets at scale - Building a Cloud Data Plane using eBPF/XDP (denog17)
At Hetzner we’ve historically used an Open vSwitch based data plane for connecting hundred thousands of cloud servers to the network. This has served us well for many years and mostly still does. We have however reached some limitations and wanted to improve scalability, resiliency and flexibility with a more specialized data plane that's tailored to our needs while being easy to operate and building a strong foundation for new features. When checking our options back in 2022, the team reached the conclusion that the best path to achieve this goal is to build and...
200 GbE network processing with 100 W - or "can I *make* a chip for that?" (denog17)
This talk presents how to to offload networking tasks onto dedicated hardware/smartNICs/NPUs (network processing units) - chips, and why this is a great idea. First, we take a look at chips in general - how they are made, integrated into networks, and why time is playing to the advantage of dedicated chips vs. CPUs/software. Then, focus is on how offloading network tasks is a particularly beautiful example of the advantages of hardware-implementing logic, with examples like TCP offloading, cybersecurity applications, or traffic shaping. To be fair and balanced, there will also be a look at the downsides...
Channelmania! – future proof your DWDM network topology while keeping it flexible for 1.6T (denog17)
Past approaches for maximizing the data capacity per fiber pair went for running more and more DWDM channels with grid spacings as small as possible. This meant that grid spacings shrank from 200GHz to 100Ghz and then 50GHz with some applications even going for 25Ghz. In recent years the bandwidth per channel kept increasing, as complex modulation schemes came into favor over ON-OFF-Keying which has been a staple in fiber optic communication for decades. Those increased per channel bandwidths of 400Gbps, 800Gbps and now pushing into the 1.6Tbps realm demand for lager grids to...
Performance measurement goes Flow (denog17)
Do you have probes installed to monitor your network border? Ever struggled to estimate the fallout-perimeter of a probe alerting quality-deterioration? We show an example how to firmly map probes to interconnect points and secondly, how to identify which other traffic is likely affected by the same problem.
Licensed to the public under http://creativecommons.org/licenses/by/4.0
about this event: https://pretalx.com/denog17/talk/YGMU8X/
Video:denog17-75455-eng-Performance_measurement_goes_Flow_hd.mp4
Newcommer Session (denog17)
Welcome to your first DENOG conference. In this session, we will guide you through the community, the event and everything DENOG!
Licensed to the public under http://creativecommons.org/licenses/by/4.0
about this event: https://pretalx.com/denog17/talk/KFLJDB/
Video:denog17-81766-eng-Newcommer_Session_hd.mp4
Evolving Inter.link's Software Delivery: Lessons in Fast, Consistent, and Safe Deployments (denog17)
Automation is at the heart of Inter.link's operations. Our team manages complex software that automates the entire customer journey, from correctly accepting orders for services such as IP Transit or DDoS and translating them into precise network configurations, to setting up billing and robust monitoring. This automation is critical, allowing us to rapidly develop and deploy new features while maintaining operational excellence. Achieving this level of automation required investment in our software environment and tooling. Over time, we have significantly evolved our tooling, emphasizing easy and consistent environment setups, and we have implemented robust CI/CD...