PODCAST · technology
OVS Orbit
by Ben Pfaff
Interviews and topics of interest to Open vSwitch developers and users.
Episodes
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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…
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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...
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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...
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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...
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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…
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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...
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User-Configurable Protocol Support for OVS, or Why Doesn't OVS Support P4?
There are several challenges toward making it easy for users to add support for new protocols in OVS or, equivalently, adding P4 support to OVS. This talk, given at the Dagstuhl seminar on programmable data planes in April 2019, explains the reasons that OVS doesn't already have these features,...
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The Faucet Controller at SC18, with Brad Cowie and Richard Sanger from University of Waikato
Brad Cowie and Richard Sanger are members of the WAND Network Research Group at the University of Waikato, in Hamilton, New Zealand. They are both associated with the Faucet project, which develops an open source OpenFlow controller for enterprise networks. The first part of this talk is an...
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The Discrepancy of the Megaflow Cache in OVS, with Levente Csikor and Gabor Retvari from Budapest University of Technology and Economics
Levente Csikor and Gabor Retvari from the Budapest University of Technology and Economics present their talk “The Discrepancy of the Megaflow Cache in OVS” at the Open vSwitch Fall Conference in San Jose in December 2018. A few days later, they visited me to have this discussion for the podcast...
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OVS Hardware Offload, with Simon Horman from Netronome
Simon Horman has been an Open vSwitch contributor and committer since 2010. He currently works for Netronome, where his Open vSwitch work centers around hardware offload using the "tc" API integrated into the Linux kernel. This API allows users of Open vSwitch to transparently obtain better...
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Encrypting OVN Tunnels with IPsec, with Qiuyu Xiao from UNC-Chapel Hill
Qiuyu Xiao is a Ph.D. student in the department of computer science at the University of North Carolina at Chapel Hill. During the summer of 2018, he was an intern in the Open vSwitch team at VMware. This episode is a talk that Qiuyu gave at the end of his internship, describing his work on...
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Introduction to OVSDB, Part 2
This episode, recorded in April 2018, was the third in a series of internal VMware tech talks about Open vSwitch. This episode is particularly about OVSDB, the Open vSwitch Database, and particularly about OVSDB from the viewpoint of the client. It talks about the C client library, including how…
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Personalized Pseudonyms for Servers in the Cloud, with Qiuyu Xiao from UNC-Chapel Hill
Qiuyu Xiao is a PhD student studying computer science at the University of North Carolina at Chapel Hill. This episode is a talk that Qiuyu gave at VMware in May. It is based on the paper “Personalized Pseudonyms for Servers in the Cloud,” by Qiuyu Xiao, Michael K. Reiter, and Yinqian…
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Generic Linux Debugging, with Ansis Atteka from VMware
Ansis Atteka is a developer on the Open vSwitch team at VMware. This episode is a recording of a talk that Ansis gave at VMware in May. He covers techniques for debugging on Linux, in particular how to trace through processes using strace, trace-cmd, and other tools. You may want to follow along...
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Networking with OVS at DigitalOcean, with Matt Layher and Armando Migliaccio from DigitalOcean
Matt Layher and Armando Migliaccio are engineers focusing on networking at DigitalOcean, a cloud service provider. In April, Justin Pettit and I sat down with them at DigitalOcean HQ in New York City. This episode is our discussion, which ranges from how DO first began using Open vSwitch, the DO...
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Oko: Extending Open vSwitch with Stateful Filters, with Paul Chaignon from Orange Labs and Inria Nancy
Paul Chaignon is a grad student at Orange and Inria. In this episode, Paul talks about Oko: Extending Open vSwitch with Stateful Filters, a paper written with co-authors Kahina Lazri, Jérôme François, Thibault Delmas, and Olivier Festor. Paul presented this research at SOSR '18 in March 2018. The...
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Incremental Processing with ovn-controller, with Han Zhou from eBay
Han Zhou is an architect working on highly scalable and reliable SDN solutions for eBay's cloud infrastructure. He is an active contributor in OpenStack and OVS/OVN. Before eBay, he has been working in networking area for more than 10 years in Cisco and Nokia. In OVN, the ovn-controller daemon…
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Toward Leaner, Faster ovn-northd, with Leonid Ryzhyk from VMware Research Group
Leonid Ryzhyk is a senior researcher in the VMware Research Group. The main theme of his work is applying formal methods to build better operating systems and networks. Before joining VMware, Leonid received his PhD from University of New South Wales and NICTA. Leonid has also worked as a...
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OpenFaaS, with Alex Ellis from VMware
Alex Ellis founded and leads the OpenFaaS project, which is an open source implementation of a serverless framework. This episode is an interview with Alex. We talk about serverless functions and OpenFaaS, how OpenFaaS compares to other serverless frameworks, how networking works in OpenFaaS…
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Flow Translation
This is the third in a series of Open vSwitch tech talks that we are starting to run internally at VMware every week or two. This episode is about flow translation, the process that OVS follows when a packet arrives in the software switch that does not match any already established entry in the…
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Introduction to OVSDB
This is the second in a series of Open vSwitch tech talks that we are starting to run internally at VMware every week or two. This episode is particularly about OVSDB, the Open vSwitch Database. It starts out with material explaining why OVSDB exists at all, given that there is so much other work...
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RCU in Open vSwitch Userspace
This is the first in a series of Open vSwitch tech talks that we are starting to run internally at VMware every week or two. This episode is particularly about read-copy-update, or RCU for short, which is a synchronization technique that allows reads to be very cheap (almost free), with some…
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Ten Years of Open vSwitch Success and Failure
This is a talk that I gave at an internal VMware event called "Open Source Day" in February. I prepared it as a kind of internal recognition of the ACM SOSR conference awarding Open vSwitch its Software Systems Award. It goes over a history of Open vSwitch and the motivation behind it, factors…
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Enterprise SDN, with Greg Ferro from Packet Pushers
Greg Ferro is one of the Packet Pushers, a host of much more popular podcasts than this one. Greg's bio says: Greg survived 25+ years of Enterprise IT as a network engineer, architect and designer. Involved with a wide range of companies in gaming, online, finance, carriers, energy and other, he...
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Network Stack as a Service, with Henry Xu from City University of Hong Kong
Henry Xu is an assistant professor in the computer science department at the City University of Hong Kong, where he leads the NetX Lab. In this episode, we discuss the research behind his group's recent paper Network Stack as a Service in the Cloud, presented at HotNets 2017. The paper has the...
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Hardware Acceleration on NICs, with Andy Gospodarek from Broadcom
This episode features Andy Gospodarek, a Principal Engineer at Broadcom, where he works as a software architect on the NICs team. This interview, recorded at the DPDK summit in San Jose on November 15, 2017, focuses on his team's work on offloading flows to Broadcom NICs, using the user's choice…
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Open Compute Project Networking, with Andrew "Puck" Ruthven from Catalyst IT
Andrew Ruthven, aka “Puck”, is a Data Centre Manager at Catalyst IT, a New Zealand open source specialist IT company whose services include operating an OpenStack based public cloud. This episode is based on “Open Compute Project, down under”, a talk that Andrew gave at OpenStack Sydney, which…
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What's New in OVN 2.8, with Ben Pfaff from VMware
This is a recording of a talk given by Ben Pfaff at the OpenStack Summit in Sydney on Monday, Nov. 6, with the follow abstract: The Open vSwitch (OVS) community recently released version 2.8. The release includes updates to both OVS and OVN (Open Virtual Network), which provides virtual…
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Routing a Production Enterprise Network with Faucet, with Brad Cowie from WAND
Brad Cowie is a member of the WAND Network Research Group at the University of Waikato, in Hamilton, New Zealand. He is also a core member of the Faucet project which develops an open source OpenFlow controller for enterprise networks, which he uses to build production OpenFlow networks. This...
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In-band Network Telemetry, with Chang Kim from Barefoot Networks
Chang Kim is an engineer at Barefoot Networks, where he has been intimately involved in the design of the P4 domain-specific language for controlling a network data plane. Whereas the control and management planes in a network system are general-purpose software implemented on CPUs, the data…
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Faucet and OpenFlow at Allied Telesis, with Tony Van der Peet
Tony van der Peet is Chief Architect at Allied Telesis. In this episode, he speaks about using OpenFlow on Allied Telesis networking hardware for enterprise SDN. The Allied Telesis implementation of OpenFlow is based on Open vSwitch. According to Tony: “We've tried really from the word `go' to...
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Cocoon-2, with Leonid Ryzhyk from VMware Research
Leonid Ryzhyk is a senior researcher at VMware Research in Palo Alto. He focuses on applying formal methods to improve operating systems and networks. This episodes discusses Cocoon-2, a system that Leonid is building to automate the tedious tasks involved in SDN programming. One problem that it...
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Fuzzing Frameworks, with Bhargava Shastry from TU Berlin
Bhargava Shastry is a Ph.D. student in the Chair for Security in Telecommunications at Technical University Berlin. Bhargava develops tools that enable early detection and fixing of security vulnerabilities. Among other topics, this episode discusses Bhargava's paper “Static Exploration of...
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FlowFuzz, with Nicholas Gray and Thomas Zinner from University of Würzburg
Nicholas Gray is a PhD student at the University of Würzburg, Germany, where he also completed his Master's thesis in 2015. His research interests include SDN/NFV architectures and their impact on network security. Thomas Zinner received his Diploma and Ph.D degrees in computer science from the...
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DPDK Introduction, with Harry van Haaren and Dave Hunt from Intel
Dave and Harry are developers who work at Intel on DPDK, the Data Plane Development Kit, which is a library for high-performance packet processing in userspace. This episode is an introduction to DPDK, its history, status, and its future, and how it relates to Open vSwitch and the DPDK datapath...
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OpenStack Cyborg, with Howard (Zhipeng) Huang from Huawei
Howard is an IT standards engineer at Huawei. He has been working on open source for about 6 years and attended the early Open vSwitch conferences, including the earliest one held at Cisco in 2014. In this episode of OVS Orbit, Howard talks about the OpenStack Cyborg project in OpenStack, which…
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BigBug: Practical Concurrency Analysis for SDN, with Ahmed El-Hassany from ETH Zürich
Ahmed El-Hassany is a second-year Ph.D. student at ETH Zürich, who researches ways to make networks more programmable and to verify the correctness of programmable networks. I caught up with Ahmed at SOSR, the Symposium on SDN Research, where he presented BigBug: Practical Concurrency Analysis…
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Control and Management Plane for IO Modules, with Fulvio Risso from Politecnico di Torino
Fulvio Risso is an associate professor at Politecnico di Torino in Turin, Italy. His research is in the area of high-speed (10+ Gbps) packet processing and especially in programmable networks. This interview was prompted by Fulvio's presentation “A Control and Management Plane for IO Modules” at...
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New Approach to OVN Datapath Performance, with Jun Xiao from CloudNetEngine
Jun Xiao is the founder and CTO of CloudNetEngine, which is focused on innovating a next generation “engine” for cloud virtual networking. He has over 15 years experience in VMware, Huawei, Lucent, Sun Microsystem, and other companies. His system design experience ranges from low-level device...
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Baker: Scaling OVN with Kubernetes API Server, with Han Zhou from eBay
Han Zhou is an architect working on highly scalable and reliable SDN solutions for eBay's cloud infrastructure. He is an active contributor in OpenStack and OVS/OVN. Before eBay, he has been working in networking area for more than 10 years in Cisco and Nokia. This episode is a talk that Han gave...
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OVN Support for Multiple Gateways and IPv6, with Russell Bryant and Numan Siddique from Red Hat
Russell Bryant is a Senior Principal Software Engineer at Red Hat, Inc. He was on the OpenStack Technical Committee from Fall 2012 until Fall 2016 and was elected to serve on the OpenStack Foundation Board of Directors in 2015, 2016, and 2017. Russell has been contributing to the development of...
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OpenStack Performance with OVS-DPDK for NFV and Connection Tracking, with Sugesh Chandran and Bhanuprakash Bodireddy from Intel
Sugesh Chandran is a network software engineer with Intel. His work is primarily focused on accelerated software switching solutions in user space running on Intel architecture. His contributions to Open vSwitch with DPDK include tunneling acceleration and enabling hardware acceleration. Before...
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Lightning Talks, with Joe Stringer from VMware and Yusuke Tatsumi from Yahoo! JAPAN
This episode is a series of 3 lightning talks given at OpenStack Boston during the Open vSwitch Open Source Day on May 10. The first speaker is Joe Stringer, a developer at VMware who works on Open vSwitch. The title of his talk, which starts at 1:03, is “Deploying an OVS-based feature switch in…
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Deploying OVN on Windows with OpenStack and Kubernetes, with Alessandro Pilotti and Alin Balutoiu from Cloudbase Solutions
Alessandro is CTO of Cloudbase Solutions, a company focused on cloud computing interoperability and the main contributor of all the OpenStack Windows and Hyper-V components in Nova, Neutron, Cinder, Ceilometer and Heat since the Folsom release. Alin is a developer at Cloudbase who describes…
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NetBricks: Taking the V out of NFV, with A. Panda from Berkeley
Panda is a PhD candidate in the computer science department at the University of California, Berkeley. In this episode, we discuss the paper “NetBricks: Taking the V out of NFV,” by Panda, Sangjin Han, Keon Jang, Melvin Walls, Sylvia Ratnasamy, and Scott Shenker, which was published in OSDI 2016....
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NEAt: Network Error Auto-Correct, with Bingzhe Liu
Bingzhe Liu is a first-year PhD student at University of Illinois at Urbana-Champaign. In this episode, we discuss the paper “NEAt: Network Error Auto-Correct,” by Wenxuan Zhou, Jason Croft, Bingzhe Liu, and Matthew Caesar, which Bingzhe presented on April 4 at SOSR, the Symposium on SDN…
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DevPulseCon, with Rupa Dachere from VMware
This episode's guest is Rupa Dachere, an engineer at VMware and the executive director and founder of CodeChix, a 501(c)3 charity dedicated to education, advocacy and mentoring of women engineers in industry and academia. Rupa founded CodeChix because she found that, regardless of where she…
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OVSDB Configuration for Hardware VTEPs, with Chandra Appanna from Arista and Bruce Davie from VMware
This episode's guests are Bruce Davie, a vice president CTO for APJ at VMware, and Chandra Appanna, an engineer and manager at Arista, who are two of the designers of the Open vSwitch database schema that can be used to control VXLAN forwarding in top-of-rack switches, often called the OVSDB VTEP...
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DragonFlow, with Omer Anson from Huawei
Omer Anson is a software developer at Huawei. I caught up with him at OpenStack Barcelona back in October to talk about the Dragonflow project, which is a distributed SDN controller for OpenStack Neutron that supports logical switching and routing and more advanced features. According to Omer,...
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The Evolution of OpenFlow, with Jean Tourrilhes from HPE Labs and Justin Pettit from VMware
Jean Tourrilhes is a networking researcher at HPE Labs who served as the chair of the Open Networking Foundation's OpenFlow standardization working group (the “extensibility” working group) from its inception until 2015. Justin Pettit, who was a founding employee at Nicira and who has continued…
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ABOUT THIS SHOW
Interviews and topics of interest to Open vSwitch developers and users.
HOSTED BY
Ben Pfaff
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Frequently Asked Questions
How many episodes does OVS Orbit have?
OVS Orbit currently has 75 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is OVS Orbit about?
Interviews and topics of interest to Open vSwitch developers and users.
How often does OVS Orbit release new episodes?
OVS Orbit has 75 episodes. Check the episode list to see recent publication dates and frequency.
Where can I listen to OVS Orbit?
You can listen to OVS Orbit on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts OVS Orbit?
OVS Orbit is created and hosted by Ben Pfaff.
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