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Software Gone Wild by ipSpace.net — Podcasting
Software Gone Wild by ipSpace.net

A podcast focusing on real-life SDN, NFV and SDDC architectures and solutions that work outside of the cozy environment of vendor-branded PowerPoint.

Latest Episodes:

Bringing New Engineers into Networking on Software Gone Wild Apr 09, 2021

As I started Software Gone Wild podcast in June 2014, I wanted to help networking engineers grow beyond the traditional networking technologies. It’s only fitting to conclude this project almost seven years and 116 episodes later with a similar theme Avi Freedman proposed when we started discussing podcast topics in late 2020: how do we make networking attractive to young engineers.

Elisa Jasinska and Roopa Prabhu joined Avi and me, and we had a lively discussion that I hope you’ll find interesting.

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FreeRTR Deep Dive on Software Gone Wild Jan 29, 2021

This podcast introduction was written by Nick Buraglio, the host of today’s podcast.

In today’s evolving landscape of whitebox, brightbox, and software routing, a small but incredibly comprehensive routing platform called FreeRTR has quietly been evolving out of a research and education service provider network in Hungary.

Kevin Myers of IPArchitechs brought this to my attention around March of 2019, at which point I went straight to work with it to see how far it could be pushed.

Streaming Telemetry with Avi Freedman on Software Gone Wild Dec 18, 2020

Remember my rant how “fail fast, fail often sounds great in a VC pitch deck, and sucks when you have to deal with its results”? Streaming telemetry is no exception to this rule, and Avi Freedman (CEO of Kentik) has been on the receiving end of this gizmo long enough to have to deal with several generations of experiments… and formed a few strong opinions.

Unfortunately Avi is still a bit more diplomatic than Artur Bergman – another CEO I love for his blunt statements – but based on his NFD16 presentation I expected a lively debate, and I was definitely not disappointed.

Enjoy the podcast

Faucet Deep Dive on Software Gone Wild Oct 09, 2020

This podcast introduction was written by Nick Buraglio, the host of today’s podcast.

In the original days of this podcast, there were heavy, deep discussions about this new protocol called “OpenFlow”. Like many of our most creative innovations in the IT field, OpenFlow came from an academic research project that aimed to change the way that we as operators managed, configured, and even thought about networking fundamentals.

For the most part, this project did what it intended, but once the marketing machine realized the flexibility of the technology and its potential to completely change the way we think about vendors, networks, provisioning, and management of networking, they were off to the races.

We all know what happened next.

BGP Navel Gazing on Software Gone Wild Jun 25, 2020

This podcast introduction was written by Nick Buraglio, the host of today’s podcast.

As we all know, BGP runs the networked world. It is a protocol that has existed and operated in the vast expanse of the internet in one form or another since early 1990s, and despite the fact that it has been extended, enhanced, twisted, and warped into performing a myriad of tasks that one would never have imagined in the silver era of internetworking, it has remained largely unchanged in its operational core.

The world as we know it would never exist without BGP, and because of the fact that it is such a widely deployed protocol with such a solid track record of “just working”, the transition to a better security model surrounding it has been extraordinarily slow to modernize.

SuzieQ with Dinesh Dutt and Justin Pietsch on Software Gone Wild Jun 12, 2020

In early May 2020 I wrote a blog post introducing SuzieQ, a network observability platform Dinesh Dutt worked on for the last few years. If that blog post made you look for more details, you might like the Episode 111 of Software Gone Wild in which we went deeper and covered these topics:

How does SuzieQ collect data
What data is it collecting from network devices
What can you do with that data
How can you customize and extend SuzieQ

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Smart NICs with Silvano Gai on Software Gone Wild May 15, 2020

A while ago we discussed a software-focused view of Network Interface Cards (NICs) with Luke Gorrie, and a hardware-focused view of them with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox).

Why would anyone want to implement features in hardware and not in software, and what would be the best hardware implementation? We discussed these dilemmas with Silvano Gai in Episode 110 of Software Gone Wild podcast.

Overlay Networking with Ouroboros on Software Gone Wild Apr 24, 2020

This podcast introduction was written by Nick Buraglio, the host of today’s podcast.

As private overlays are becoming more and more prevalent and as SD-WAN systems and technologies advance, it remains critical that we continue to investigate how we think about internetworking. Even with platforms such as Slack Nebula, Zerotier, or the wireguard based TailScale becoming a mainstream staple of many businesses, the question of “what is next” is being asked by an ambitious group of researchers.

NetDev 0x13 on Software Gone Wild Jan 10, 2020

The last Software Gone Wild podcast recorded in 2019 focused on advances in Linux networking - in particular on interesting stuff presented at NetDev 0x13 conference in Prague. The guests (in alphabetical first name order) Jamal Hadi Salim, Shrijeet Mukherjee, Sowmini Varadhan, and Tom Herbert shared their favorite topics, and commented on the future of Linux networking.

IP Fabric with Gian-Paolo Boarina on Software Gone Wild Nov 29, 2019

No, we were not talking about IP fabrics in general - IP Fabric is a network management software (oops, network assurance platform) Gian Paolo discovered a while ago and thoroughly tested in the meantime.

He was kind enough to share what he found in Episode 107 of Software Gone Wild, and as Chris Young succinctly summarized: “it’s really sad what we still get excited about something 30 years after it was first promised”… but maybe this time it really works ;)

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OpenBGPD with Claudio Jeker on Software Gone Wild Oct 25, 2019

Everyone is talking about FRRouting suite these days, while hidden somewhere in the background OpenBGPD has been making continuous progress for years. Interestingly, OpenBGPD project was started for the same reason FRR was forked - developers were unhappy with Zebra or Quagga routing suite and decided to fix it.

We discussed the history of OpenBGPD, its current deployments and future plans with Claudio Jeker, one of the main OpenBGPD developers, in Episode 106 of Software Gone Wild.

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Net2Text: Natural-Language Interface to Network Operations Sep 27, 2019

Sick-and-tired of intent-based GUIs that are barely better than CiscoWorks on steroids? How about asking Siri-like assistant queries about network state in somewhat-limited English and getting replies back in full-blown sentences?

Warning: you might be reentering the land of unicorns driving flying DeLoreans... but then keep in mind what Arthur Clarke had to say on this topic ;).

Welcome to Net2Text, another proof-of-concept tool created by the group led by Laurent Vanbever… who joined us for a short chat to discuss it, resulting in Episode 105 of Software Gone Wild.

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Intent-Based Networking with Batfish on Software Gone Wild Sep 06, 2019

Imagine you would have a system that would read network device configurations, figure out how those devices might be connected, reverse-engineer the network topology, and be able to answer questions like “what would happen if this link fails” or “do I have fully-redundant network” or even “how will this configuration change impact my network”. Welcome to Batfish.

Interested? You’ll find more in Episode 104 of Software Gone Wild.

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Device Configuration Synthesis with NetComplete on Software Gone Wild Jun 21, 2019

When I was still at university the fourth-generation programming languages were all the hype, prompting us to make jokes along the lines “fifth generation will implement do what I don’t know how”

The research team working in Networked Systems Group at ETH Zurich headed by prof. Laurent Vanbever got pretty close. The description of their tool says:

Programmable Packet Forwarding Pipelines Using P4 on Software Gone Wild May 17, 2019

Every time a new simple programming language is invented, we go through the same predictable cycle:

Tons of hype;
Unbounded enthusiasm when people who never worked in target environment realize they could get something simple done in a short time;
Ever-worsening headaches as the enthusiasts try to get a real job done with the shiny new tool;
Disappointment;
A more powerful language is invented to replace the old one.

A few years ago we experienced the same cycle when OpenFlow was the-one-tool-to-bind-them all.

Using Faucet to Build SC18 Network with OpenFlow Apr 19, 2019

Remember how Nick Buraglio tried to use OpenDaylight to build a small part of SuperComputing conference network… and ended up with a programmable patch panel?

This time he repeated the experiment using Faucet SDN Controller – an OpenFlow controller focused on getting the job done – and described his experience in Episode 101 of Software Gone Wild.

We started with the usual “what problem were you trying to solve” and quickly started teasing apart the architecture and got geekily focused on interesting things like:

Multipath TCP on Software Gone Wild Mar 22, 2019

I mentioned Multipath TCP (MP-TCP) numerous times in the past but I never managed to get beyond “this is the thing that might solve some TCP multihoming challenges” We fixed this omission in Episode 100 of Software Gone Wild with Christoph Paasch (software engineer @ Apple) and Mat Martineau from Open Source Technology Center @ Intel.

Smart NICs and Related Linux Kernel Infrastructure Mar 01, 2019

A while ago we did a podcast with Luke Gorrie in which he explained why he’d love to have simple, dumb, and easy-to-work-with Ethernet NICs. What about the other side of the coin – smart NICs with their own CPU, RAM and operating system? Do they make sense, when and why would you use them, and how would you integrate them with Linux kernel?

We discussed these challenges with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox) in Episode 99 of Software Gone Wild.

High-Speed IPsec on Snabb Switch on Software Gone Wild Feb 22, 2019

In previous Software Gone Wild episodes we covered Snabb Switch and numerous applications running on it, from L2VPN to 4over6 gateway and integration with Juniper vMX code.

In Episode 98 we focused on another interesting application developed by Max Rottenkolber: high-speed VPN gateway using IPsec on top of Snabb Switch (details). Enjoy!

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Network Reliability Engineering on Software Gone Wild Jan 22, 2019

In summer 2018 Juniper started talking about another forward-looking concept: Network Reliability Engineering. We wanted to find out whether that’s another unicorn driving DeLorean with flux capacitors or something more tangible, so we invited Matt Oswalt, the author of Network Reliability Engineer’s Manifesto to talk about it in Episode 97 of Software Gone Wild.

Using Math in Networking on Software Gone Wild Dec 13, 2018

We love to claim that we’re engineers and yet sometimes we have no clue how technology we use really works and what its limitations are… quite often because understanding those limitations would involve diving pretty deep into math (graphs, queuing and system reliability quickly come to mind).

From Excel to Network Infrastructure as Code with Carl Buchmann Nov 23, 2018

After a series of forward-looking podcast episodes we returned to real life and talked with Carl Buchmann about his network automation journey, from managing upgrades with Excel and using Excel as the configuration consistency tool to network-infrastructure-as-code concepts he described in a guest blog post in February 2018

netdev 0x12 Update on Software Gone Wild Oct 26, 2018

In recent years Linux networking started evolving at an amazing pace. You can hear about all the cool new stuff at netdev conference… or listen to Episode 94 of Software Gone Wild to get a CliffsNotes version.

Roopa Prabhu, Jamal Hadi Salim, and Tom Herbert joined Nick Buraglio and myself and we couldn’t help diverging into the beauties of tc, and the intricacies of low-latency forwarding before coming back on track and started discussing cool stuff like:

Smart or Dumb NICs on Software Gone Wild Sep 21, 2018

Hardware vendors are always making their silicon more complex and feature-rich. Is that a great idea or a disaster waiting to happen? We asked Luke Gorrie, the lead developer of Snabb Switch (an open-source user-land virtual switch written in Lua) about his opinions on the topic.

TL&DL version: Give me a dumb NIC, software can do everything else.

If you want to know more, listen to Episode 93 of Software Gone Wild.

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Is BGP Good Enough with Dinesh Dutt on Software Gone Wild Aug 31, 2018

In recent Software Gone Wild episodes we explored emerging routing protocols trying to address the specific needs of highly-meshed data center fabrics – RIFT and OpenFabric. In Episode 92 with Dinesh Dutt we decided to revisit the basics trying to answer a seemingly simple question: do we really need new routing protocols?

Snabb Switch Update on Software Gone Wild Jun 08, 2018

In 2014, we did a series of podcasts on Snabb Switch (Snabb Switch and OpenStack, Deep Dive), a software-only switch delivering 10-20 Gbps of forwarded bandwidth per x86 core. In the meantime, Snabb community slowly expanded, optimized the switching code, built a number of solutions on top of the packet forwarding core, and even forked a just-in-time Lua compiler to get better performance.

To find out the details, listen to Episode 91 of Software Gone Wild in which Luke Gorrie explained how far the Snabb project has progressed in the last four years.

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Network Automation with Nornir (formerly Brigade) on Software Gone Wild May 04, 2018

David Barroso was sick-and-tired of using ZX Spectrum of Network Automation and decided to create an alternative with similar functionality but a proper programming language instead of YAML dictionaries masquerading as one. The result: Nornir, an interesting network automation tool formerly known as Brigade we discussed in Episode 90 of Software Gone Wild.

OpenFabric with Russ White on Software Gone Wild Apr 20, 2018

Continuing the series of data center routing protocol podcasts, we sat down with Russ White (of the CCDE fame), author of another proposal: OpenFabric.

As always, we started with the “what’s wrong with what we have right now, like using BGP as a better IGP” question, resulting in “BGP is becoming the trash can of the Internet”.

Data Center Routing with RIFT on Software Gone Wild Mar 30, 2018

Years ago Petr Lapukhov decided that it’s a waste of time to try to make OSPF or IS-IS work in large-scale data center leaf-and-spine fabrics and figured out how to use BGP as a better IGP.

In the meantime, old-time routing gurus started designing routing protocols targeting a specific environment: highly meshed leaf-and-spine fabrics. First in the list: Routing in Fat Trees (RIFT).

Linux Interfaces on Software Gone Wild Mar 09, 2018

Continuing the Linux networking discussion we had in Episode 86, we focused on Linux interfaces in Episode 87 of Software Gone Wild with Roopa Prabhu and David Ahern.

We started with simple questions like “what is an interface” and “how do they get such weird names in some Linux distributions” which quickly turned into a complex discussion about kernel objects and udev, and details of implementing logical interfaces that are associated with ASIC front-panel physical ports.

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