Andree Toonk

Network nerd, technologist, and entrepreneur. Founder of Border0 and BGPMon, now at Tailscale. Usually tinkering with BGP, Anycast, Linux, Go, and ways to make packets go fast.
Vancouver http://toonk.io/about/ 28 posts
Twitter
        
            aws
        
    How fast can you actually go on AWS? Pushing packets on the biggest network optimized EC2 instances
            If you've been following along, you know I've spent the last few months making packets go fast in Go. We looked at AF_XDP, DPDK, and most recently Mellanox Direct
        
Andree Toonk

    13 Sep 2026
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    9 min read
    
            Go
        
    Four ways to do super fast packet processing in Go
            Meet packetio, the Go packet I/O library I wish I'd had a years ago. AFXDP, DPDK, mlx5 Direct Verbs, and AFPACKET behind one API.  The last few months I've
        
Andree Toonk

    8 Sep 2026
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    10 min read
    
            Go
        
    Wireblast: a 100Gbs packet generator in Go with AF_XDP
            If you’ve followed my blog for a while, you know I love tinkering with packets and making them go fast in software. Today I'm releasing a new tool called
        
Andree Toonk

    5 Aug 2026
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    6 min read
    
            Go
        
    Line-rate packet processing in Go with AF_XDP
            If you've been following my blog for a while, you know I have a soft spot for making packets go fast in software. I'm a network guy at heart, raised
        
Andree Toonk

    7 Jul 2026
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    7 min read
    
            networking
        
    Navigating Infrastructure Outages: Battle Scars and Lessons Learned
            I've worked on numerous outages, each teaching me invaluable lessons. Inspired by Rogers' recent outage report, I wrote down some of my lessons learned.
        
Andree Toonk

    8 Jul 2024
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    8 min read
    
            Go
        
    High-Speed Packet Transmission in Go: From net.Dial to AF_XDP
            Pushing limits in Go: from net.Dial to syscalls, AF_PACKET, and lightning-fast AF_XDP. Benchmarking packet sending performance..
        
Andree Toonk

    11 Mar 2024
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    10 min read
    
            ipv4
        
    AWS IPv4 Estate Now Worth $4.5 Billion
            AWS grew its IPv4 estate with an additional 27 million IP addresses to now owning 128 Million IPv4 addresses. At a value of $35 per IPv4 address, the total value of AWS’ IPv4 estate is ~4.5 Billion dollars. An increase of $2 billion
        
Andree Toonk

    17 Sep 2023
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    5 min read
    
            ai
        
    Diving into AI: An Exploration of Embeddings and Vector Databases
            Join me on my journey into AI and learning about embeddings, vectors and vector databases
        
Andree Toonk

    1 May 2023
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    6 min read
    
            ipv4
        
    IPv4 for sale - WIDE and APNIC selling 43.0.0.0/8
            In this article, we'll look at the recent sale of the IPv4 range 43.0.0.0/8 by The Asia Pacific Internet Development Trust (APIDT). We'll look at who bought what and for how much?
        
Andree Toonk

    13 Oct 2021
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    5 min read
    
            ddos
        
    The Risks and Dangers of Amplified Routing Loops.
            In this article will take a closer look at network loops and how they can be abused as part of DDoS attacks.
        
Andree Toonk

    13 Apr 2021
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    7 min read
    
            mysocket
        
    Introducing SSH zero trust, Identity aware TCP sockets
            In this article, we’ll look at Mysocket’s zero-trust cloud-delivered, authenticating firewall. Allowing you to replace your trusted IP ranges with trusted identities.Last month we introduced our first
        
Andree Toonk

    16 Feb 2021
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    9 min read
    
            mysocket
        
    Introducing Identity Aware Sockets: Enabling Zero Trust access for your Private services
            In this blog post, we’ll introduce an exciting new feature that, with the help of Mysocket, allows you to deploy your own Beyond Corp setup. What is Zero TrustThe
        
Andree Toonk

    14 Jan 2021
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    5 min read
    
            mysocket
        
    Global load balancing with Kubernetes and Mysocket.io
            If you’re in the world of cloud infrastructure, then you’ve heard of Kubernetes. Some of you are experts already, while some of us are just learning or getting
        
Andree Toonk

    22 Dec 2020
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    5 min read
    
            mysocket
        
    Easy Multi-region load balancing with Mysocket.io
            Last week AWS had a major outage in its US-EAST1 region, lasting for most of the day, just before the big black Friday sales! Incidents like this are a great
        
Andree Toonk

    7 Dec 2020
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    5 min read
    
            mysocket
        
    Static DNS names for your mysocket.io services (and a new gif service)
            In my last blog post, I announced the mysocket.io service and demonstrated how to get started quickly. It’s been great to see people signing up and giving it
        
Andree Toonk

    1 Dec 2020
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    5 min read
    
            mysocket
        
    Introducing Mysocket.io
            Mysocket is a service that provides users with fast and secure TCP sockets for services that aren’t normally directly reachable from the Internet. Using a simple client, we connect your local services to the Internet.
        
Andree Toonk

    23 Nov 2020
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    4 min read
    
            ipv4
        
    AWS and their Billions in IPv4 addresses
            Earlier this week, I was doing some work on AWS and wanted to know what IP addresses were being used. Luckily for me, AWS publishes this all here https://ip-ranges.
        
Andree Toonk

    20 Oct 2020
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    4 min read
    
            aws
        
    100G networking in AWS, a network performance deep dive
            Loyal readers of my blog will have noticed a theme, I’m interested in the continued move to virtualized network functions, and the need for faster networking options on cloud
        
Andree Toonk

    15 Oct 2020
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    9 min read
    
            terraform
        
    Building a global anycast service in under a minute
            This weekend I decided to take another look at Stackpath and their workload edge compute features. This is a relatively new feature, in fact, I wrote about it in Feb
        
Andree Toonk

    21 Jun 2020
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    4 min read
    
            networking
        
    Building an XDP (eXpress Data Path) based BGP peering router
            Over the last few years, we’ve seen an increase in projects and initiatives to speed up networking in Linux. Because the Linux kernel is slow when it comes to
        
Andree Toonk

    19 Apr 2020
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    9 min read
    
            networking
        
    Kernel bypass networking with FD.io and VPP.
            In this blog, we’ll look at VPP, a fast, flexible, and open-source network forwarding plane. I think you will be blown away by the performance numbers.
        
Andree Toonk

    5 Apr 2020
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    6 min read
    
            networking
        
    Linux Kernel and Measuring network throughput.
            can Linux route at line-rate between two network interfaces? That’s the question we will try to answer in the next few minutes.
        
Andree Toonk

    29 Mar 2020
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    6 min read
    
            networking
        
    Building a high performance - Linux Based Traffic generator with DPDK
            Often in my, now 20 years, networking career, I had to do some form of network performance testing. Use-cases varied, from troubleshooting a customer problem to testing new network hardware,
        
Andree Toonk

    18 Mar 2020
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    10 min read
    
            networking
        
    TCP BBR - Exploring TCP congestion control
            One of the oldest protocols and possibly the most used protocol on the Internet today is TCP. You likely send and receive hundreds of thousands or even over a million
        
Andree Toonk

    15 Feb 2020
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    7 min read
    
            aws
        
    Building A Smarter AWS Global Accelerator
            In this blog post, we’ll take a look at how we could build our own global accelerator.  I’ve been thinking a lot about Global Accelerator and while it provides a powerful data plane, I think it would benefit from a smarter control plane.
        
Andree Toonk

    1 Dec 2019
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    7 min read
    
            terraform
        
    Building a high available Anycast service using AWS Global Accelerator
            In my last two blogs, I wrote about building highly available applications using anycast on Packet and Stackpath. Today we’ll look at how to do this on AWS using its recently released service: Global Accelerator.
        
Andree Toonk

    2 Sep 2019
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    7 min read
    
            anycast
        
    Building a high available Anycast application in 5 minutes on Packet
            As the demand on our applications and infrastructure grow, it becomes more important to be able to quickly deploy your applications and supporting infrastructure in a safe, fast and scalable way. Luckily the tooling and various cloud providers are catching up and making this a lot easier for us.
        
Andree Toonk

    24 Feb 2019
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    7 min read
    
            terraform
        
    Experimenting with StackPath Edge Computing and Anycast
            I love tinkering with new tech, and since it was a cold and snowy weekend here in Vancouver, I figured I’d explore Edge Containers from Stackpath. Earlier this week
        
Andree Toonk

    11 Feb 2019
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    6 min read