this post was submitted on 18 Sep 2024
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[–] wesker@lemmy.sdf.org 63 points 1 month ago (2 children)

You have to first capture the internet in the loop, and then it just travels around in the router forever.

[–] rbn@sopuli.xyz 21 points 1 month ago (1 children)

Please leave some internet for the rest of us!

[–] WhyAUsername_1@lemmy.world 4 points 1 month ago

Squeezing the last bit of internet out of the cloud

[–] qprimed@lemmy.ml 33 points 1 month ago (1 children)

you (yes, you in particular) are the reason why STP was invented.

I would normally suggest that this is more "networking porn", but its just way too fetishistic for regular consumption. you animal!

[–] kubica@fedia.io 8 points 1 month ago
[–] Ilovethebomb@lemm.ee 24 points 1 month ago (2 children)

I love that you can plug a switch into itself that essentially causes a data short circuit of the switch talking to itself without realising it.

[–] friend_of_satan@lemmy.world 23 points 1 month ago* (last edited 1 month ago)

Unless the switch has STP enabled.

The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks.

[–] 0ops@lemm.ee 19 points 1 month ago (1 children)

Why is the switch talking to itself? Is it stupid??

[–] possiblylinux127@lemmy.zip 38 points 1 month ago (2 children)

Switches are kind of stupid from a hardware perspective. A basic switch just has a lookup table that has all the connected devices and if it can't find the destination address in the switch sends it out on all ports. There are protocols to handle this but they add overhead and are only available on higher end devices.

You can imagine what kind of chaos this could cause

[–] SpaceNoodle@lemmy.world 10 points 1 month ago

No need to imagine, I've done it myself!

[–] takeda@lemmy.world 6 points 1 month ago (1 children)

I'm still puzzled though. Is switch initiative the ARP request? I though that since nothing (that can communicate) is connected to it except itself, it would be just quiet.

[–] possiblylinux127@lemmy.zip 2 points 1 month ago (1 children)

You just connect your laptop and run a broadcast ping

Problem solved

[–] takeda@lemmy.world 1 points 1 month ago

I see, so that's how you bootstrapped it?

[–] HK65@sopuli.xyz 16 points 1 month ago (2 children)

Wouldn't something like spanning-tree just down all ports on this?

[–] Sailing7@lemmy.ml 8 points 1 month ago
[–] TechGuy@discuss.online 5 points 1 month ago

If it’s present, and loop guard is enabled, it would block the ports. This looks like an unmanaged switch so probably doesn’t have that feature.

Most of Netgear’s managed switch range have a loop guard function, even if they don’t do full STP.

[–] Sparky@lemmy.blahaj.zone 14 points 1 month ago (1 children)

Would be a shame if someone plugged this into a school network :)

[–] possiblylinux127@lemmy.zip 7 points 1 month ago

That would be a great way to piss off the school

[–] Gustephan@lemmy.world 13 points 1 month ago (1 children)

The packets: "I want to get off Mr Bones' wild ride"

[–] Mr_Dr_Oink@lemmy.world 3 points 1 month ago

omg! A rollercoaster tycoon reference in the wild!

[–] problembasedperson@lemmy.dbzer0.com 13 points 1 month ago (1 children)

Is this what they call the loopback interface?

[–] possiblylinux127@lemmy.zip 10 points 1 month ago

Yeah pretty much

127.0.0.1->127.0.0.2....... 127.0.0.254-> 127.0.0.1

[–] Mr_Dr_Oink@lemmy.world 8 points 1 month ago

Would the switch do anything here? Wouldn't there need to be something else plugged in? Like a laptop or pc?

[–] slazer2au@lemmy.world 5 points 1 month ago

Ah broadcast storms. The best kind of storms.

[–] mvirts@lemmy.world 5 points 1 month ago (1 children)
[–] WIPocket@lemmy.world 16 points 1 month ago (1 children)

It doesnt even matter, TTL is only decreased when routing. Ethernet frames have no such concept.

[–] mvirts@lemmy.world 4 points 1 month ago

Til. I thought switches would decrement ttl but that makes perfect sense.

[–] bearded_zero@lemmy.world 5 points 1 month ago* (last edited 1 month ago)

This is knot funny. Someone needs to ping the mods!

[–] Atherel@lemmy.dbzer0.com 4 points 1 month ago

The post title adds so much I laughed mostly because of it.

Yes I do have kids why do you ask?

[–] TotalFat@lemmy.world 3 points 1 month ago

This is how Scotty survived being trapped in that Dyson Sphere for all that time..

[–] nonentity@sh.itjust.works 3 points 1 month ago (1 children)

It’s a Euthanasia Coaster where the cars are 802.3 frames.

[–] possiblylinux127@lemmy.zip 3 points 1 month ago

John Allen, who served as president of the Philadelphia Toboggan Company, inspired Urbonas with his description of the "ultimate" roller coaster as one that "sends out 24 people and they all come back dead"