75 episodes

Interviews and topics of interest to Open vSwitch developers and users.

OVS Orbit Ben Pfaff

    • Technology
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Interviews and topics of interest to Open vSwitch developers and users.

    Sneak Preview: VMware Research High Bits, with Lalith Suresh from VMware Research

    Sneak Preview: VMware Research High Bits, with Lalith Suresh from VMware Research

    VMware Research High Bits is a podcast coming soon from VMware's research
    group. This episode is a sneak preview of episode 1, with Lalith Suresh.
    Lalith is a researcher in the VMware Research Group who specializes in
    measurement, design, and implementation of large-scale networked and
    distributed systems. Last year, Lalith published a blog
    entry with advice on how to build software systems for research, and
    then he followed up with a video with more
    details. This episode interviews Lalith to learn more about his approach
    to building research systems.




    To learn more about Lalith's work, visit his VMware
    Research webpage or his personal blog Comfortably Geek, where you can also find
    his contact information.




    VMware Research High Bits is produced by Ben Pfaff. The bumper sound in this
    episode is Ben biting into an apple.

    • 34 min
    The Systems Approach, with Bruce Davie, Larry Peterson, and Mark Twain

    The Systems Approach, with Bruce Davie, Larry Peterson, and Mark Twain

    Bruce Davie and Larry Peterson are the authors of the Systems Approach series of
    computer networking textbooks. Mark Twain has been called the greatest
    humorist the United States has produced and the father of American
    literature. This episode, the first collaboration among these celebrated
    authors, incorporates elements of the works of both [1, 2].




    For more information on the Systems Approach series, visit systemsapproach.org or follow
    the series on substack as systemsapproach or
    Twitter as and @SystemsAppr. On Twitter, you
    can find Bruce as @_drbruced,
    Larry as @_llpete, and Mark as
    @MarkTwain.




    Bruce and Larry were previously featured in Episode
    73: Computer Networks: A Systems Approach.




    OVS Orbit is produced by Ben Pfaff. The
    intro music in this episode is Drive,
    featuring cdk and DarrylJ, copyright 2013, 2016 by Alex. The outro music
    is Space
    Bazooka featuring Doxen Zsigmond, copyright 2013 by Kirkoid.
    Fanfares et Simphonies by Jean-Joseph Mouret, performed by Jean-Marie
    Leclair, dir. Jean-François Paillard, downloaded via imslp.org,
    is licensed under Creative
    Commons Zero 1.0 - Non-PD US. The scratch sound effect by Stumber
    was downloaded via freesound.org
    and licensed under Creative Common
    Attribution 3.0 Unported (CC BY 3.0). The episode as a whole is
    licensed as Creative Commons Attribution 3.0
    Unported (CC BY 3.0).

    • 14 min
    Computer Networks: A Systems Approach, with Bruce Davie and Larry Peterson

    Computer Networks: A Systems Approach, with Bruce Davie and Larry Peterson

    Bruce Davie and Larry Peterson talk about their Systems Approach series of
    books on computer networking. These books began with the textbook Computer Networks: A
    Systems Approach, published in 1996. After publishing the fifth
    edition in 2011, they took their book "open source" by making the text
    freely available on
    Github under a Creative Common license. Now the original book is
    part of a series that also includes "micro-books" on SDN and 5G, with
    more books in preparation. In this episode, Bruce and Larry talk about
    their motivations and future plans, including trying to rope your host
    into writing a book on Open vSwitch.




    For more information on the series, visit systemsapproach.org or follow
    the series on substack as systemsapproach or
    Twitter as and @SystemsAppr. You can find
    Bruce on Twitter as @_drbruced and Larry as @_llpete.




    OVS Orbit is produced by Ben Pfaff. The
    intro music in this episode is Drive,
    featuring cdk and DarrylJ, copyright 2013, 2016 by Alex. The bumper
    music is Yeah Ant
    featuring Wired Ant and Javolenus, copyright 2013 by Speck. The outro
    music is Space
    Bazooka featuring Doxen Zsigmond, copyright 2013 by Kirkoid. All
    content is licensed under a Creative Commons Attribution 3.0
    Unported (CC BY 3.0) license.

    • 38 min
    The OVSDB Query Optimizer and Key-Value Interface, with Dmitry Yusupov from NVIDIA

    The OVSDB Query Optimizer and Key-Value Interface, with Dmitry Yusupov from NVIDIA

    Dmitry Yusupov submitted a talk to the Open vSwitch 2020 Fall Conference
    that we weren't able to fit into the schedule. This podcast, recorded in
    December 2020, is based on the material that Dmitry presented in a video available on YouTube.
    The slides for Dmitry's talk are also
    available.




    The abstract for this talk is:





    OVSDB (management protocol RFC 7047) is a fundamental building block of
    modern SDN architecture based on OVN/OVS. OVSDB is the key component
    that is responsible for efficient scalability of large deployments,
    such as 1000+ node Kubernetes clusters when CNI function is OVN based.




    OVSDB was originally designed to store configuration for Open vSwitch
    daemon, however, it was later extended to be part of OVN architecture,
    with added RAFT clustering support and improved scale-out capabilities,
    such as efficient scale-out caches.




    This talk brings a question of scaling up OVSDB with introduction of
    OVSDB Query Optimizer using primary and alternate key indexing. We
    will be also looking at OVSDB with Query Optimizer as high-performance
    Key-Value API interface and compare it to ETCD.





    You can contact Dmitry as @dmitryy on Twitter, or via email
    at dyusupov@nvidia.com.




    OVS Orbit is produced by Ben Pfaff. The
    intro music in this episode is Drive,
    featuring cdk and DarrylJ, copyright 2013, 2016 by Alex. The bumper
    music is Yeah Ant
    featuring Wired Ant and Javolenus, copyright 2013 by Speck. The outro
    music is Space
    Bazooka featuring Doxen Zsigmond, copyright 2013 by Kirkoid. All
    content is licensed under a Creative Commons Attribution 3.0
    Unported (CC BY 3.0) license.

    • 39 min
    Network Service Mesh, with Frederick Kautz and Nikolay Nikolaev

    Network Service Mesh, with Frederick Kautz and Nikolay Nikolaev

    Frederick Kautz and Nikolay Nikolaev are developers on the Network Service Mesh project,
    which provides additional networking features for Kubernetes above what
    is available from Kubernetes CNI networking implementations.




    OVS Orbit is produced by Ben Pfaff. The
    intro music in this episode is Drive,
    featuring cdk and DarrylJ, copyright 2013, 2016 by Alex. The bumper
    music is Yeah Ant
    featuring Wired Ant and Javolenus, copyright 2013 by Speck. The outro
    music is Space
    Bazooka featuring Doxen Zsigmond, copyright 2013 by Kirkoid. All
    content is licensed under a Creative Commons Attribution 3.0
    Unported (CC BY 3.0) license.

    • 43 min
    Long-Term Network Latency, with Nick Buraglio from ESnet

    Long-Term Network Latency, with Nick Buraglio from ESnet

    Nick Buraglio works in research and education and service provider
    networking, currently at ESnet, the US
    Department of Energy's science network, which links sites in the United States and western
    Europe. In this podcast, he talks about the role of latency
    monitoring in managing a network.




    Nick defines the latency that he's talking about:




    "When most people think of latency, they think of a ping round-trip time.
    That's one useful data point, but we're talking about very low tolerance
    and high accuracy latency. You have to have a cellular or GPS clock and
    a very strong clock source in the system to be able to track it at this
    level. We use that as a very important part of how we manage our
    network. That's really what I'm talking about when I talk about
    latency."



    Nick discusses the perfSONAR
    software for monitoring latency over time and for investigating problems
    as they occur.




    Some basic live monitoring charts and graphs for ESnet are online at MyESnet.




    You can contact Nick on Twitter as @forwardingplane or visit
    his blog at forwardingplane.net.




    Other episodes of OVS Orbit related to monitoring include Episode 46: In-band Network Telemetry and Episode 6: sFlow.




    OVS Orbit is produced by Ben Pfaff. The
    intro music in this episode is Drive,
    featuring cdk and DarrylJ, copyright 2013, 2016 by Alex. The bumper
    music is Yeah Ant
    featuring Wired Ant and Javolenus, copyright 2013 by Speck. The outro
    music is Space
    Bazooka featuring Doxen Zsigmond, copyright 2013 by Kirkoid. All
    content is licensed under a Creative Commons Attribution 3.0
    Unported (CC BY 3.0) license.

    • 39 min

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