Interesting links, week 47, 2023
Interesting telco/tech news for this week:
- AMS-IX outage : severe issue with LACP flapping in AMS-IX.
- Optus CEO quitting: followup on the Optus big BGP meltdown, the CEO has quit. Official communication about the incident is here.
- Tales from the Trenches – Emergency Calling when Roaming: a nice post of Nick on how emergency calls are processed - i.e. TL;DR the MME would ship a NAS message with a list of emergency numbers. However, in my experience, the iPhone ignored it in the lab, probably because I was on a specific PLMN (perhaps because of carrier profiles overrides). To be re-tested.
Found a couple of nice links this week on the Internet:
- It’s not always DNS — unless it is: ndots in Kubernetes cluster strikes again.
- How to identify ugly mass tourism places before you visit them?: Twitter thread about using a certain network of ATMs to track tourism in Spain.
- Battery usage on multiple scenarios: an interesting feedback on testing wearable with various settings. I wished the OS would have a way to tell the user the impact of each feature on battery life.
- Maia chip and numerica data: the new Microsoft chip for hardware acceleration uses a new set of numeric data called internally msfloat, and is now part of the OCP. The link is about the microscaling formats (MX).
- How DaemonSet’s Status field work: how status of Daemonset differs from other k8s resources.
- Bluefin distro: “An interpretation of the Ubuntu spirit built on Fedora technology”. Like the idea of a lean linux distribution build around zero maintenance.
Listened a couple of nice podcasts this week:
- Werner Hertzog in Conan o’Brian needs a friend: I discovered that Conan O’Brian was having a podcast with great guests a bit late, I have to say. Nevertheless Werner Hertzog was invited and it was a great interview in the context of his biography. Patrick Steward was also interviewed recently, as well as Dave Grohl.