Sunday, October 17, 2021

Worth Reading: The Software Industry IS STILL the Problem

Every other blue moon someone writes (yet another) article along the lines of professional liability would solve so many broken things in the IT industry. This time it’s Poul-Henning Kamp of the FreeBSD and Varnish fame with The Software Industry IS STILL the Problem. Unfortunately it’s just another stab at the windmills considering how much money that industry pours into lobbying.



source https://blog.ipspace.net/2021/10/worth-reading-professional-liability.html?utm_source=atom_feed

Saturday, October 16, 2021

MUST READ: ARP Problems in EVPN

Decades ago there was a trick question on the CCIE exam exploring the intricate relationships between MAC and ARP table. I always understood the explanation for about 10 minutes and then I was back to I knew why that’s true, but now I lost it.

Fast forward 20 years, and we’re still seeing the same challenges, this time in EVPN networks using in-subnet proxy ARP. For more details, read the excellent ARP problems in EVPN article by Dmytro Shypovalov (I understood the problem after reading the article, and now it’s all a blur 🤷‍♂️).



source https://blog.ipspace.net/2021/10/worth-reading-arp-problems-evpn.html?utm_source=atom_feed

Friday, October 15, 2021

Windows Subsystem for Linux is ready for Windows 11

Microsoft has just made the Windows Subsystem for Linux (WSL) available in the Microsoft Store for Windows 11 systems. WSL is the application that allows Windows users to run a GNU/Linux environment directly on Windows without the overhead of a virtual machine or dual-boot setup.

One good aspect is that it installs as a separate app, decoupled from the OS. This means that users can update the app without having to wait for Windows OS updates to become available.

The app in the Microsoft Store is not a new version of WSL. It’s still WSL 2, but is a preview version that was added as an option for end users to get the latest features faster and more conveniently. The binaries will no longer be part of the Windows image.

To read this article in full, please click here


Thanks to Sandra Henry-Stocker (see source)

A dive into Kyndryl, IBM’s managed-services spin-off

Thanks to  a US Securities and Exchange Commission filing new details have emerged about Kyndryl, the IBM spin-off of its managed-infrastructure services unit into a separately traded public company.

Kyndryl does exactly what the managed-infrastructure services unit of IBM’s Global Technology Services segment does: manage enterprises IT infrastructure, whether it comes from IBM or another vendor. That’s a challenge for Kyndryl because it has to deal with the trend toward cloud services and against on-premises infrastructure.

The split is expected to be complete by the end of 2021, and when it was announced last year, IBM CEO Arvind Krishna said IBM will focus on open hybrid-cloud and AI capabilities while Kyndryl would focus on modernizing customer infrastructure.

To read this article in full, please click here


Thanks to Andy Patrizio (see source)

Lessons Learned: Complexity Will Kill Your System

You wouldn’t believe the intricate network designs I created decades ago until I learned that having an uninterrupted sleep is worth more than proving I can get the impossible to work (see also: using EBGP instead of IGP in a 4-node data center fabric).

Once I started valuing my free time, I tried to design things to be as simple as possible. However, as my friend Nicola Modena once said, “Consultants must propose new technologies because they must be seen as bringing innovation,” and we all know complexity sells. Go figure.

You’ll need a Free ipSpace.net Subscription to watch the video.


source https://blog.ipspace.net/2021/10/lessons-learned-complexity-kills.html?utm_source=atom_feed