Wow, this is part 10 in my series on how to get started with Kubernetes! I am obviously having a lot of fun with the topic, and it’s really nice to be able to experiment with the technology, as it is not only the basis for 5G core networks, but massively transforms all parts of … Continue reading Kubernetes Intro – Part 10 – Persistent Storage in a Managed Cluster
It’s amazing how in the past year or so, efforts in the telecom industry to move next generation systems into containers and manage them with Kubernetes have moved from theory to practice. The 5G core, for example, was specified by 3GPP in a cloud native way from the start, and even things like Open Radio … Continue reading Kubernetes Intro – Part 5 – A Cluster on Amazon and Linode
And again there was a choice to make for another Linux notebook. This time, the main requirement was to get the latest CPU architecture at the risk of some rough edges that might be fixed later-on. As Lenovo usually has good Linux support, my choice fell on a Lenovo L14 Gen2 with an 11th generation … Continue reading Running Ubuntu Linux on Bleeding Edge Hardware – Lenovo L14 Gen 2 – Part 1
This post is a follow up to a recent post in which I compared the ffmpeg video transcoding performance of a number of notebook-, workstation- and cloud server CPUs. Having done that, I’ve wondered a few days later what effect hyper-threading and dual channel RAM have on such a workload. The results are pretty interesting.
After my very good experience with running Ubuntu 20.04 on almost the latest hardware, I decided to be even more adventurous, and go for a mid-range notebook with pretty much the latest hardware, i.e. with an 11th generation Intel i5 CPU. So here’s how that went.
Last year I post-processed videos from the Vintage Computing Festival 2020 on my rather old notebook and was quite underwhelmed by the time it took. Even VMs in the cloud did not significantly speed up the process. This year I’ve had a workstation with an Nvidia graphics card and hardware H264 encoding for the purpose … Continue reading Ffmpeg Comparison – From Nvidia to Raspberry Pi 4
When traveling, I use Wi-Fi tethering with a smartphone a lot to keep my notebook and other devices connected. When staying at a place for more than just a day or two, however, I prefer a somewhat more sophisticated setup with a Linksys router running OpenWRT. No, this is not just a fancy but often … Continue reading OpenWRT and Android USB Tethering For Backhaul
Now that the non-Standalone (NSA) flavor of 5G has been pretty much established around the globe, it is likely that more focus is put on the 5G standalone (SA) flavor of the technology. In effect that means two things: Instead of using LTE as an anchor for a 5G air interface connection, 5G can stand … Continue reading Voice over NR Whitepapers
Since 2018, I’ve been working in the area of putting 5G into practice. Back then, early versions of the 3GPP Release 15 specification had become available and equipment vendors started shipping first hardware and software. The standards were not developed overnight, however, but were preceded by visions, ideas, studies, and trials by at least half … Continue reading My 6G-Kickoff
As you might have noticed on the blog, I’ve been doing a lot of hands-on exploration these days of bare metal hardware, virtual machines, containers and orchestration (e.g. Kubernetes). My motivation behind this is twofold. For one thing, I like to evolve my private cloud. Current status: 25 containers are now running in my private … Continue reading The Three Eras Of Telecom Infrastructure Hardware