ipSpace.net videos and podcasts
Select the channel or view the videos and podcasts from all ipSpace.net channels:
Ivan Pepelnjak is a frequent guest on Packet Pushers Podcast and other podcasts including:
- How Networking Is Changing, theCube interview @ EMC World 2013
- Brandon Carroll interviewed Ivan for the podcast series published on globalconfig.net
- New networks for the cloud on The Cloudcast
- MPLS explained with Matthew Stone and CJ Infantino.
Latest videos and podcasts
Video: SPB Deep Dive
24 March 2017
TCP in the Data Center and Beyond on Software Gone Wild
17 March 2017
In autumn 2016 I embarked on a quest to figure out how TCP really works and whether big buffers in data center switches make sense. One of the obvious stops on this journey was a chat with Thomas Graf, Linux Core Team member and a founding member of the Cilium project.Read more ...
Video: Out-of-Band SDN Management Network
10 March 2017
One of the challenges of designing a controller-based solution is the transport network used to exchange information between controller and controlled devices. Can you do that in-band or is it better to have an out-of-band network (built with traditional components)? Terry Slattery explained some of the pros and cons in the Monitoring SDN Networks webinar.
CloudScale ASICs on Software Gone Wild
3 March 2017
Last year Cisco launched a new series of Nexus 9000 switches with table sizes that didn’t match any of the known merchant silicon ASICs. It was obvious they had to be using their own silicon – the CloudScale ASIC. Lukas Krattiger was kind enough to describe some of the details last November, resulting in Episode 73 of Software Gone Wild.
For even more details, watch the Cisco Nexus 9000 Architecture Cisco Live presentation.
Newer Docker Networking Options
23 February 2017
OpenConfig: From Basics to Implementations
17 February 2017
In 2013, large-scale cloud providers and ISPs decided they had enough of the glacial IETF process of generating YANG models used to describe device configuration and started OpenConfig – a customer-only initiative that quickly created data models covering typical use cases of the founding members (aka “What Does Google Need”).Read more ...
Video: Simplify BGP Configurations
10 February 2017
Running BGP instead of an IGP in your leaf-and-spine fabric sounds like an interesting idea (particularly if your fabric is large). Configuring a zillion BGP knobs on every box doesn’t.
However, BGP doesn’t have to be complex. In the Simplify BGP Configurations video (part of leaf-and-spine fabric designs webinar) Dinesh Dutt explains how you can make BGP configurations simple and easy-to-understand.
Linux Networking Update from NetDev Conference on Software Gone Wild
3 February 2017
When I recorded the first podcast with Thomas Graf we both found it so much fun that we decided to do it again. Thomas had attended the NetDev 1.2 conference so when we met in November 2016 we warmed up with What’s NetDev and then started discussing the hot new networking stuff being added to Linux kernel:Read more ...
To Drop or To Delay, That’s the Question on Software Gone Wild
27 January 2017
A while ago I decided it's time to figure out whether it's better to drop or to delay TCP packets, and quickly figured out you get 12 opinions (usually with no real arguments supporting them) if you ask 10 people. Fortunately, I know someone who deals with TCP performance for living, and Juho Snellman was kind enough to agree to record another podcast.Read more ...
Multi-Host Container Networking
20 January 2017
Running Linux containers on a single host is relatively easy. Building private multi-tenant networks across multiple hosts immediately creates the usual networking mess.
VXLAN Ping and Traceroute
13 January 2017
From the moment Cisco and VMware announced VXLAN some networking engineers complained that they'd lose visibility into the end-to-end path. It took a long while, but finally the troubleshooting tools started appearing in VXLAN environment: NVO3 working group defined Fault Managemnet framework for overlay networks and Cisco implemented at least parts of it in recent Nexus OS releases.
Video: SDN Controller Running in a Virtual Machine
15 December 2016
During the Monitoring Software-Defined Networks webinar Terry Slattery addressed an interesting question: what happens if you run an SDN controller in a virtual machine and the virtual network crashes?
Snabb Switch with vMX Control Plane on Software Gone Wild
9 December 2016
In Software Gone Wild Episode 52 Katerina Barone-Adesi explained how Igalia implemented 4-over-6 tunnel termination (lwAFTR) with Snabb Switch. Their solution focused on very fast data plane and had no real control plane.
No problem – there are plenty of stable control planes on the market, all we need is some glue.Read more ...
Building a L3-Only Data Center with Cumulus Linux
2 December 2016
Dinesh Dutt was the guest speaker in the second Leaf-and-Spine Fabric Design session. After I explained how you can use ARP/ND information to build a layer-3-only data center fabric that still support IP address mobility Dinesh described the details of Cumulus Linux redistribute ARP functionality and demoed how it works in a live data center.
StackStorm 101 on Software Gone Wild
25 November 2016
A few weeks ago Matt Oswalt wrote an interesting blog post on principles of automation, and we quickly agreed it’s a nice starting point for a podcast episode.Read more ...
Video: Docker Networking Options
18 November 2016
Becoming a Programmer on Software Gone Wild
11 November 2016
During our summer team-building podcast we agreed it would be fun to record a few episodes along the “how do I become a programmer” theme and figured out that Elisa Jasinska would be a perfect first candidate.
A few weeks ago we finally got together and started our chat with campfire stories remembering how we got started with networking and programming.Read more ...
Optimize Your Data Center: How Far Did We Get?
4 November 2016
Our Data Center optimization journey has finished. We virtualized the workload, got rid of legacy technologies, reduced the number of server uplinks, replaced storage arrays with distributed file system and replaced physical firewalls and load balancers with virtual appliances.
Let’s see what’s left: it turns out you really don’t need more than two switches in most data centers.
NAPALM Update on Software Gone Wild
28 October 2016
We did a podcast describing NAPALM, an open-source multi-vendor abstraction library, a while ago, and as the project made significant progress in the meantime, it was time for a short update.
NAPALM started as a library that abstracted the intricacies of network device configuration management. Initially it supported configuration replace and merge; in the meantime, they added support for diffs and rollbacksRead more ...
Basic Docker Networking
21 October 2016
After explaining the basics of Linux containers, Dinesh Dutt moved on to the basics of Docker networking, starting with an in-depth explanation of how a container communicates with other containers on the same host, with containers residing on other hosts, and the outside world.
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About Ivan Pepelnjak
- Sizing the Network
3 May 2017
- Open Networking for Large-Scale Networks
9 May 2017
- Ansible Updates
23 May 2017
- Network Visibility with Flow Data
7 June 2017
- Building Network Automation Solutions (Online course)
15 September 2017