This talk dives into the cutting-edge developments shaping today's silicon landscape, showcasing the leap to 800Gbps Ethernet and setting the stage for the transition toward 1600Gbps. We’ll spotlight Linear Interface Optics technologies and show how those can reduce the power consumption. To wrap up, we’ll explore the evolution of ZR and ZR+ optics…

Everyone always mentions that people do not read documentation. This is also the case for us as game developers. So what can we do about that? First, it is important not to force everyone to read pages and pages of documentation. Usually, only programmers and other technical folks go through all the effort of reading up on functionality. So what ab…

The *Blender Studio* is presenting the creation process and asset pipeline behind *DOGWALK*, a short open source game, centered around incorporating Blender & Godot.Get insight into the planning & game design of our brief 4 month production period, the paper-craft art style that resulted in a distinct low-poly look and our glTF & Blender Asset orie…

Games can be more than finished products—they can be living classrooms.In this session, Sarah Spiers (Senior Producer of Threadbare, former Development Director at EA, Forbes 30 Under 30) and Will Thompson (open-source developer, Endless Access) will share how collaborative development with Godot can transform game-making into a pathway for new cre…

In Europe, net neutrality is a principle enshrined in EU law which states that all data on the internet should be treated equally - but what happens when large providers such as Deutsche Telekom systematically violate it with their interconnection practices? The Netzbremse project documents an alarming case: millions of Deutsche Telekom customers a…

With NIS2, ISO 27001 and requirements of BNetzA raising the bar for security and operational compliance, many internet providers are asking the same question: *How do we meet these requirements without drowning in bureaucracy?*This talk bridges the gap between regulation and real-world implementation. Instead of focusing on theory or checklists, we…

I would like to present my testing methodology and the results of using TRex to generate "stateful" traffic for the purpose of scale testing CGNAT solutions. The main focus of the test is to determine the actual scale around Juniper's SRX solution.Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: https://preta…

Managing bare metal servers has always been quite time-consuming and prone to errors. Manual steps are required to configure the BMC, adjust BIOS settings, and, if necessary, perform firmware updates. If you have many servers to manage, you have to repeat everything on each individual server which likely to cause errors and diverging configurations…

The BGP Origin attribute has been around for decades and did not attract much attention. It is simply there, shown either as "?" for "incomplete" or as "i" for IGP.During writing slides for my BGP training I found a large number (868) of prefixes in the global routing table tagged with "e" for EGP. The presentation does not give any answers but sim…

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 …

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 insight…

The Internet is not the same everywhere. And in Asia, the world’s most populous region with some of the fastest growing economies, it can be especially complex. Join Telstra to learn about how differently the Internet operates in Asia compared to Europe and North America, how those behaviour are likely to change as the impact of new AI workloads is…

**Is PPPoE really legacy? Is IPoE really better? And what actually happens when something breaks?**This talk takes a hands-on look at PPPoE and IPoE (DHCPv4/v6) in real ISP environments, based on actual deployments, not just specs. We’ll walk through the key operational differences that show up when things get serious: high availability, failover, …

Blackholing events often have prolonged impacts and typically require manual intervention for recovery. Even a single occurrence is highly disruptive, frequently triggering executive-level escalations. Resolving such incidents demands top-tier expertise and often involves engagement with the vendor’s advanced technical support.To accelerate root ca…

As a Junior Engineer, the consumability of a network automation tool can really make or break your experience. Some incredibly smart engineers and developers build amazing tools for specific use cases, but they can be tough to use unless you know all their quirks. This is especially frustrating when you're just starting out. That is why I want to s…

That's a wrap on Day1, time for the social!Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: https://pretalx.com/denog17/talk/MVDVUL/Von Tim Kleefass

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 …

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 …

For years, InfiniBand has dominated high-performance interconnects. Yet for strategic and technical reasons, there has been a huge industry ask to develop a new next-generation protocol for use in AI and HPC environments. This session introduces Ultra Ethernet, an innovative standard designed to tackle the limitations seen in RDMA around scalabilit…

At DE-CIX, we're redefining network orchestration from first principles. Confronted with the limitations of existing systems, we set out to design a modern orchestration stack—one capable of managing a truly global network, seamlessly interfacing with a variety of upstream and downstream systems, supporting fully managed network devices, and, above…

As it's common practice, each new hacker event needs something weird and funky. For this years summer camp in the Netherlands called WHY2025, we build a 400G link over a single fibre. Since 400G BiDi does not exist (yet), we had to get creative and built something, which might be considered out of spec.Licensed to the public under http://creativeco…

As Bird is evolving over the years and we now have Bird version 3 available at our fingertips, maybe we should know the capabilities of it and what performance we can expect from it.Get some numbers in comparison with other routing stacks.Let's take a quick look on the shiny new feathers Bird prepared for us.Licensed to the public under http://crea…

How we route-leaked everything to everyone due to a fun Arista bug.A post-mortem kind of story about us changing Arista RCF function names, resulting in a global route leak. The talk includes the history of why we intended to make a change, how we rollout configurations, why it resulted in an unexpected behavior and how it was fixed.Licensed to the…

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 off…

This talk explores the adoption of `security.txt`, as defined in [RFC 9116](https://www.rfc-editor.org/rfc/rfc9116), that enables websites to publish security contact information in a consistent and accessible way. We begin with a brief introduction to the RFC and the motivation behind standardized vulnerability disclosure.But is this even importan…

After discussing building a 1 Tbps/1 Gpps load generator on commodity x86-64 hardware, one of the most common follow-up topics was the reasoning behind some of the decisions. And here I've realised that it is not commonly understood that modern systems are more complex than classic multi-socket NUMA systems, and that if you don't consider some of t…

In high-performance optical communication systems transceiver health and efficiency are critical to network reliability and energy consumption. This presentation explores the powerful capabilities of Versatile Diagnostics Monitoring (VDM) features found in modern optical transceivers (beyond the speed of 100G) with a particular focus on the Thermoe…

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://creat…

Last year we migrated our datacentre networks from a flat layer 2-based architecture to EVPN-VXLAN. As an organisation whose primary technical background is in software, a network project of this complexity has been a journey into new and uncharted territory.Our previous network design had been showing signs of reaching its limits for several years…

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 t…

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.AGIn 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-centrali…

Network operations engineers maintain the backbone of our digital experiences, ensuring robust connectivity and managing complex routing. Yet, even with great network health, where are the current limits of today’s routing technology? What does it mean when your manager calls you and says “Our customers can’t watch Netflix!”? Can we measure how the…

Welcome to DENOG17!Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: https://pretalx.com/denog17/talk/YPAXF8/Von Patrick Bussmann, Moritz Frenzel, Franziska Lichtblau

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/4.0about this event: https://pretalx.com/denog17/talk/KFLJDB/Von Patrick Bussmann

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon melly, Lu

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Charlotte, Anna

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Pablo, Lennard, Simon, Mohammed, Jonathan

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Benia, Vincent, Oskar, 404, Arya

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Greta, Aemi, Lale, Morgan, Charlie

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Hanl, Theodora, Paulina, Lilly, Andrii, Leonid, Jona, Matilda

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Emil, Ferdinand, Ocey, Sarah, Alexander, Konsti, Arsenii, Gerald, Emil

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Arnel, Angela, Ida, Lotti, Levin, Milo

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Lennart, Maxi, Layla

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon Justus, Ilias, jim, Mikka, Helena, Maya

Licensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.deVon kilian, David, Bela

Projekte: FAIREDU, Bit-Flip, Simple Study, Flappy Rocket, News Map, Space Tree, Schüli Cloud, Lama Script, Daily Guide, Lautstärke messen (im Klassenzimmer), PartypakaLicensed to the public under https://creativecommons.org/licenses/by/4.0/about this event: https://c3voc.de

How does a (Go) linter work? We'll find out and write our own!A linter is an automated way of performing a code review. It automatically checks your code way faster than any human could do, and with way less environmental impact and more deterministically than an AI would use. Sure, it does not replace code review, but it allows the reviewer to foc…

At our Saarländisches Chaos-Event Mega-Knowledgecamp, we created an Innovative Digital Platform™ to have digital payments at the bar, without involving American payment acquirers and networks. This talk will present the many NFC crimes we committed to enable this.Let's admit it, dealing with cash at a bar, particularly notes with wet hands, is a bi…

Normal Advent calendars are boring: so let’s make our own! We’ll combine all our favorite technologies: Gridfinity (for the grid system), 3D printing (for the grid), vacuum molding (for the chocolate), laser cutting (for the frame), and automated paper cutting to create advent calendars that are both beautiful and functional.Along the way, we’ll co…

The many consequences of running your regional rail network like an S-BahnA transgender catgirl who knows too many things about the MDSB network infodumps to a (not) captive audience about the many issues said network has caused for the transit of the region around Leipzig and HalleLicensed to the public under https://creativecommons.org/licenses/b…