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PODCAST

OVS Orbit

Interviews and topics of interest to Open vSwitch developers and users, published twice a month, hosted and produced by Ben Pfaff.

technology software how-to

All Episodes

00:53:43

Introduction to OVSDB

OVS Orbit ·

2018/04/07

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 in databases and in network configuration. Then it moves on to what OVSDB is and its basic features, including the features that its schemas support. It

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00:37:00

RCU in Open vSwitch Userspace

OVS Orbit ·

2018/04/07

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 memory cost. This talk covers reasons why RCU can be preferred over other techniques, such as readers-writer locks, and its relationship with lockless

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00:38:28

Ten Years of Open vSwitch Success and Failure

OVS Orbit ·

2018/04/07

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 that led to its success, and some of the project's failures and mixed results. The accompanying slides are available as PDF, although it

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00:48:10

Enterprise SDN, with Greg Ferro from Packet Pushers

OVS Orbit ·

2018/03/01

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 was a team member or leader that designed, built and deployed quite a few medium & large solutions for well known large companies. He was

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00:39:37

Network Stack as a Service, with Henry Xu from City...

OVS Orbit ·

2018/02/15

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 following abstract: The tenant network stack is implemented inside the virtual machines in today's public cloud. This legacy

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00:33:30

Hardware Acceleration on NICs, with Andy Gospodarek...

OVS Orbit ·

2018/01/31

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 of the Linux “TC” flow offload API or a Broadcom-specific API. Toward the end, he also talks about a different kind of hardware acceleration using a “Smart

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00:29:04

Open Compute Project Networking, with Andrew "Puck"...

OVS Orbit ·

2018/01/11

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 had the following abstract: This talk will review the Open Compute Project, where it came from, where things are now and where things

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00:39:17

What's New in OVN 2.8, with Ben Pfaff from VMware

OVS Orbit ·

2017/12/15

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 networking for OVS. This presentation will primarily focus on updates to OVN and how OpenStack can use it as a backend for OpenStack Neutron. OVN has

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00:41:03

Routing a Production Enterprise Network with Faucet,...

OVS Orbit ·

2017/11/30

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 episode is a recording of a talk that Brad gave at the OpenStack Summit in Sydney on Nov. 6, with the following abstract: Within the

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00:38:02

In-band Network Telemetry, with Chang Kim from...

OVS Orbit ·

2017/11/16

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 plane in a high-speed network is typically implemented in an ASIC dedicated to packet forwarding. State-of-the-art switching ASICs can handle multiple

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00:27:50

Faucet and OpenFlow at Allied Telesis, with Tony Van...

OVS Orbit ·

2017/10/31

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 develop the most generic OpenFlow switch that we can, and obviously Open vSwitch is a very fully featured version of OpenFlow. The

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00:29:09

Cocoon-2, with Leonid Ryzhyk from VMware Research

OVS Orbit ·

2017/10/24

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 aims to solve is incrementality, that is, the need to avoid recomputing all of the state in an SDN system given a small change to its

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00:35:17

Fuzzing Frameworks, with Bhargava Shastry from TU Berlin

OVS Orbit ·

2017/10/03

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 Taint-Style Vulnerabilities Found by Fuzzing,” which was presented at WOOT '17, the Workshop on Offensive Technologies. The paper's

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00:35:16

FlowFuzz, with Nicholas Gray and Thomas Zinner from...

OVS Orbit ·

2017/09/22

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 University of Wurzburg, Germany, in 2007 and 2012, respectively. Nicholas is a member of the research group headed by Thomas on “Next Generation Networks” at

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00:48:23

DPDK Introduction, with Harry van Haaren and Dave...

OVS Orbit ·

2017/09/01

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 included in Open vSwitch. OVS Orbit is produced by Ben Pfaff. The intro music in this episode is Drive, featuring cdk and DarrylJ, copyright

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00:28:51

OpenStack Cyborg, with Howard (Zhipeng) Huang from...

OVS Orbit ·

2017/08/20

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 was formerly called Nomad. Howard is the “caretaking” PTL for the project. The Cyborg project supports all kinds of hardware acceleration for

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00:32:35

BigBug: Practical Concurrency Analysis for SDN, with...

OVS Orbit ·

2017/08/01

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 for SDN, a paper that he authored along with Roman May, Laurent Vanbever, and Martin Vechev. The paper's abstract is: By operating in

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00:48:53

Control and Management Plane for IO Modules, with...

OVS Orbit ·

2017/07/09

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 the IO Visor Summit held on Feb. 27 in Mountain View (see Quentin Monnet's excellent summary of the summit for more information). The

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00:30:54

New Approach to OVN Datapath Performance, with Jun...

OVS Orbit ·

2017/06/12

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 drivers and network stacks to middleware and distributed systems. This episode is a talk that Jun gave at OpenStack Boston during the Open vSwitch

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00:22:39

Baker: Scaling OVN with Kubernetes API Server, with...

OVS Orbit ·

2017/06/11

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 at OpenStack Boston during the Open vSwitch Open Source Day on May 10, with the following abstract: Han presents “Baker,” a new

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75 results

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