Chaos Computer Club - archive feed

Vor Kurzem hat die Pro Senectute beider Basel ihren «Swiss Crypto Marvels»-NFT gestartet und kurz davor auch ihr Metaverse-Engagement bekanntgegeben. Die Reaktionen darauf reichen von «mutiger Schritt» bis zu «so ein Käse». Motiviert von diesem Interesse gehen wir der Frage nach, was das Metaverse ist, wieso es davon so viele gibt, was NFTs und Kryptowährungen damit zu tun haben und was nun von all dem zu halten ist. Marcel Waldvogel ist Doktor der Informatik und beschäftigt sich mit den Auswirkungen von Technik auf die Gesellschaft. Gemeinsam diskutieren wir mit ihm und dem Publikum die Hintergründe. about this event: https://www.digitale-gesellschaft.ch/event/netzpolitischer-abend-zum-thema-metaverse-und-nft/

Thank you for joining us at DENOG14! None about this event: https://pretalx.com/denog14/talk/7SLPZB/

News from IXPs in Germany None about this event: https://pretalx.com/denog14/talk/CCXQHF/

A lot of things have been added and improved since the last talk at DENOG10. We want to take this opportunity to provide an update on what we have done on and what our agenda looks like. None about this event: https://pretalx.com/denog14/talk/US3RZ7/

This talk will present a scalable, redundant and vendor-neutral approach to provide firewalled network segments within an EVPN fabric. Instead of stretching layer-2 segments, VRF route leaking is used to route traffic from network segments to the firewalls in a generic way. Using anycast gateways within the EVPN fabric, a consistent gateway behavior across firewalled and non-firewalled network segments is achieved. None about this event: https://pretalx.com/denog14/talk/GEJCHN/

In this talk, Pim will demonstrate high performance routing using open-source VPP and its underlying Data Plane Development Kit. This talk highlights the authors work on integrating the Linux Control Plane which makes BGP, OSPF, etc available with VPP, including smart ways to automate configuration of the router's data- and controlplane layers. We’ll then turn to a popular DPDK based network load testing tool TRex, and discuss performance benchmarking results from the field using the author’s AS8298 as a practical example. This will demonstrate that a fully open source router can seriously compete with silicon based router vendors. None about this event: https://pretalx.com/denog14/talk/X9GJHM/

Route leaks containing more specific announcements of Internet Exchange Peering-LANs pose a risk to the reliability of Internet infrastructure. RPKI validation and filtering can mitigate some of the dangers - if the IXP operator created proper ROAs. In this lightning talk we will take a look at what can go wrong, how RPKI ROAs can save us and what the current state of the rollout is. None about this event: https://pretalx.com/denog14/talk/YMZT7G/

PeeringDB has been around for almost 20 years and is the go-to place for interconnection data. Whether to find new peers around you, looking for facilities when expanding your networks or retrieving configuration data for BGP sessions. PeeringDB has all of these data. The database is a non-profit, community-driven initiative run and promoted by volunteers. It is a public tool for the growth and good of the Internet. Due to the pandemic situation, we haven't updated the German community for a while. This presentation briefly introduces PeeringDB to bring newcomers up to speed and then roughly goes through the new features and developments None about this event: https://pretalx.com/denog14/talk/9RLPFA/

Pastel de Natas are delicious and while sharing some in Belgrade, the topic of "all traffic goes via Frankfurt" came up. So what does the traffic numbers actually say. And is the result something we should discuss? None about this event: https://pretalx.com/denog14/talk/PLCJKJ/

There are very few troubleshooting tools that work across the public internet reasonably reliably. Well, it really boils down to Ping and Traceroute. Of those two, the latter is sometimes referred to as the "the number one go-to tool" for troubleshooting problems on the internet [1]. That is not, because it provides all the information we need or would like to have but at least, for the most part, it is universally supported. Traceroute is however missing one important piece of information, and that is information about the return path, i.e. the path from the target towards the host that initiated the traceroute. In this talk, we look at why this would be useful, what people have worked on in the past to implement a reverse traceroute tool and recent work in the IETF that aims at defining a standard protocol for reverse traceroute [2]. [1] https://nanog.org/news-stories/nanog-tv/nanog-80-webcast/troubleshooting-with-traceroute/ [2] https://datatracker.ietf.org/doc/html/draft-heiwin-intarea-reverse-traceroute None about this event: https://pretalx.com/denog14/talk/CWAKX8/

Are you hearing the word sustainability more and more often but you are not sure what exactly that means for you, your company, or the industry? In this talk you will learn about the new upcoming regulations, tracking options, network vendor sustainability data, reporting types and forms, organizational integration of sustainability data, as well as some certificates you can apply for. You'll also get insights into our lessons learned at Inter.link and our best practices to assist you on your sustainability journey. None about this event: https://pretalx.com/denog14/talk/EFBRUV/

DE-CIX has been working on the introduction of EVPN on its peering platform since the beginning of the year. Considering the increasing number of participants, especially in Frankfurt, the introduction of EVPN including ProxyARP/ND is already overdue in order to get the exponentially growing broadcast/multicast traffic in our peering LANs under control and to reduce the load on customer routers. Additionally further security features based on a ProxyARP/ND agent according to RFC 9161 will be activated and the protocol stack of our global network will be expanded to include RSVP-TE and sBFD. In this presentation we would like to present the course of the project, benefits and side effects for DE-CIX customers, explained in technical detail. At the time of the potential presentation, we will already have migrated the first peering LANs and will be a few weeks in front of the DE-CIX Frankfurt migration. None about this event: https://pretalx.com/denog14/talk/JU3UJ3/

Monitoring of traffic flows is a central aspect of modern network engineering from planning peering connectivity to anomaly detection. This talk discusses how we handle flows from different sources, enrich them with additional contextual data such as customer names or geo locations, and use that information in different contexts using our own Open Source [flowpipeline](https://github.com/bwNetFlow/flowpipeline) tool. [BelWü (AS553)](https://www.belwue.de/) is the research and education network of the German federal state of Baden-Württemberg. None about this event: https://pretalx.com/denog14/talk/EAXQQ3/

In a heterogeneous environment the devices need to cooperate. This talk aims to define the common ground for planning and implementing QoS. Different designs are compared and - if possible - matched. None about this event: https://pretalx.com/denog14/talk/Q3SNBK/

Day1 is coming to an end, let's see where we're headed... None about this event: https://pretalx.com/denog14/talk/XRL39P/

In this presentation Pavel will share practical real field aspects of using BGP Flow Spec for DDoS mitigation. I will talk about level of vendor support level and known implementation issues. None about this event: https://pretalx.com/denog14/talk/8F8A9H/

Most companies are already aware that diverse teams can help with innovation, performance and prevent "group think". But aside from the usual "we're open to applications from all backgrounds"-sidenote, many companies and hiring managers aren't sure how to best go about diverse hiring. If you keep getting applications from the same crowd and want to do something about it, come along and reflect on changes you can make to your hiring policies, interview processes and company culture! None about this event: https://pretalx.com/denog14/talk/BTQLG7/

With vPC Fabric Peering, direct links between vPC peers can be eliminated in most situations as vPC traffic goes through the fabric. It even simplifies the VXLAN-EVPN configuration in some cases. This lightning talk gives a short overview of how to configure vPC Fabric Peering and sheds light on a few pitfalls. None about this event: https://pretalx.com/denog14/talk/RMDY8Q/

Over the years many talks and workshops have been held to improve and spread the overall knowledge of BGP and it's knobs, configs and features. These days there are only a few up-to-date and vendor-agnostic references when it comes to design, control plane and forwarding filtering in modern carrier and/or ISP like networks. We think that DENOG is the perfect organisation to form a group of people willing to contribute their knowledge to create documents containing best practice tips and configurations for the community. We call the community to participate in the "DENOG Working Group Routing" (wg-routing). None about this event: https://pretalx.com/denog14/talk/Z8AEDS/

RFC9234 allows to assign a role to each BGP neighbors. Roles can be matched when setting up sessions and a transitive attribute is added to prefixes which should be announced to customers only. None about this event: https://pretalx.com/denog14/talk/ZYUS8K/

The presenter has been active in different data centers over many years. Many times has he helped out other parties with various tools or materials. Even looking for help from time to time, the fixe idea formed to have a data center machine to be able to buy nuts and screws, tools or cables. But this was nowhere to be found. This seemed like something to start an interesting project... The journey started with an idea how to get some kind of data center vending machine project going. What would be needed? How could it be provided given the different machine types? How about support? All types of questions and a long journey with many people involved started. After many setbacks, many ideas thrown out, many people saying "No this will not work!" the device actually got shipped. But this was only the start of an even longer journey to the point, the first patch cable changed hands and the first optic got programmed and used inside the data center. None about this event: https://pretalx.com/denog14/talk/M8NQHB/

Following some discussion at RIPE84Fredy Kuenzler and I put forward an Internet Draft to define a well-known advisory BGP community to denote prefixes are used for Anycast. To quote from the abstract of the ID: > In theory routing decisions on the Internet and by extension within ISP networks should always use hot-potato routing to reach any given destination. In reality operators sometimes choose to not use the hot-potato paths to forward traffic due to a variety of reasons, mostly motivated by traffic engineering considerations. For prefixes carrying anycast traffic in virtually all situations it is advisable to stick to the hot-potato principle. As operators mostly don't know which prefixes are carrying unicast or anycast traffic, they can't differentiate between them in their routing policies. > > To allow operators to take well informed decisions on which prefixes are carrying anycast traffic this document proposes a well-known BGP community to denote this property. You can find the lastest version of the draft at: https://datatracker.ietf.org/doc/draft-wilhelm-grow-anycast-community/ None about this event: https://pretalx.com/denog14/talk/MEM7YD/

The wave of 400GE IP routing satisfied the increased bandwidth demand observed during the global pandemic with many optical module variants emerging depending on use case, cost and technology. Technology has evolved since, and routers with 800GE interfaces are now available giving early adopters many benefits from power and density perspective. This presentation provides a unique insight in what technology advancements were required to realize such capacity increase. It touches on considerations such as optical interface technologies (and interworking), power, cooling and system design necessary to interconnect your systems at 800GE interface capacity. None about this event: https://pretalx.com/denog14/talk/H983WD/

This talk gives an insight of 400G-ZR and 400G-ZR+ for wide-area links. Whilst most presentations are theoretical, this one is based on real-world deployments and the side effects you can observe. None about this event: https://pretalx.com/denog14/talk/3NZMVW/

This talk will talk about the Euro-IX activities. 1. The IXP{DB} project - I'll provide a brief history on when and why the project started, the progress through the years and where we are now and a road map to show the future plans. 2. The Peering Toolbox - a tool for learning about peering for new entrants in the industry. 3. The IXP Report - I'll show some statistics from the report to give some insight into IXP operations. None about this event: https://pretalx.com/denog14/talk/9VB8LH/