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   Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:19 JST Stéphane Bortzmeyer

   OK, what is the hashtag for the #Netnod meeting?
   https://www.netnod.se/event/netnod-meeting2025

   PS: the password of the Wifi is great.

   • Haelwenn /элвэн/ :triskell: likes this.
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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:13 JST Stéphane Bortzmeyer

     in reply to

     Now, #football "Evaluation of the impact of #UEFA Champions League Wednesday matches on Internet traffic at MINAP and NAMEX" by Gianluca Sironi. "Football is a religion"

     https://www.minap.it/ https://www.namex.it/

     #Netnod

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:17 JST Stéphane Bortzmeyer

     in reply to

     Designing a data center for AI, by Nokia. Connecting GPUs: the pattern of traffic is different than ordinary traffic (more bursty, with long perios of network rest, when the GPU "think").

     Despite "common knowledge", Ethernet works as well as InfiniBand here.

     #Netnod

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:19 JST Stéphane Bortzmeyer

     in reply to

     What about #SMR (Small Nuclear Reactors)? Have your own nuclear reactor in your backyard!

     You can already buy one from russian or chinese companies. Or Nuscale in the USA. Others are in the pipeline.

     #Netnod

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:20 JST Stéphane Bortzmeyer

     in reply to

     "When I was a child [the speaker has a grey beard], nuclear fusion was 40 years in the future. It still is."

     #Netnod

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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:24 JST Stéphane Bortzmeyer

     in reply to

     "Nuclear seems the perfect solution to power AI data centers"

     But delays and costs have a bad habit of slipping out of control.

     Subcontract to Rosatom?

     #Netnod

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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:29 JST Stéphane Bortzmeyer

     in reply to

     An example of an AI data center: xAI in Memphis. 100,000 H100 GPUs (150 MW).
     Some power provided by "Solar turbines" (which are not solar at all, it is the name of the company)
     The local electricity company agreed to provide more, if they receive public money for that.

     Basically, it is not clear they'll manage to get as much electricity.

     #Netnod

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:34 JST Stéphane Bortzmeyer

     in reply to

     We often talk about electricty production but, in many countries, distribution is the bottleneck. many grids are overloaded.

     #Netnod

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:38 JST Stéphane Bortzmeyer

     in reply to

     Now, the first talk" Artificial Intelligence is really good for the environment?" (Bill Gates said yes.)

     #Netnod

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:40 JST Stéphane Bortzmeyer

     in reply to

     80 PoP for the #Netnod #DNS anycast network.

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:43 JST Stéphane Bortzmeyer

     in reply to

     For those who don't know, #Netnod manages a #DNS root server, a big IXP (Internet exckange point), secure time distribuition (an important thing for Netnod)... It's one of the organizations that make the Internet run.

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:50 JST Stéphane Bortzmeyer

     in reply to

     "Who scanned the QR code at the entrance of the building?" [Nobody raises a hand.] "You are liars."

     #Netnod

     Haelwenn /элвэн/ :triskell: likes this.
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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:51 JST Stéphane Bortzmeyer

     in reply to

     Interesting weakness: nobody ever upgrades the firmware of the power supplies and, these days, they even have a HTTP server.

     #Netnod

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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:52 JST Stéphane Bortzmeyer

     in reply to

     OK, back with cybersecurity. Networks and penetration testing.

     (I'm surprised to be the only one raising my hand when the speaker asked "who redid his/her threat model since 21 Jan.?")

     #Netnod

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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 21:13:53 JST Stéphane Bortzmeyer

     in reply to

     So, the networks we build and manage are really useful: there is a marked increase of traffic when there is a #football match (people follow them in streaming, not on traditional TV or physically).

     #Netnod

     Haelwenn /элвэн/ :triskell: repeated this.
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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 22:04:53 JST Stéphane Bortzmeyer

     in reply to

     "We wrote this software, which means we have bipedal documentation inside the company."

     #Netnod

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     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Tuesday, 18-Mar-2025 22:04:55 JST Stéphane Bortzmeyer

     in reply to

     "Blessed are the paranoids, for they test their backups."

     #Netnod