62 points

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

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21 points

Please leave some internet for the rest of us!

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4 points

Squeezing the last bit of internet out of the cloud

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1 point
Deleted by creator
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32 points

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!

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7 points

ST(O)P(!!)

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24 points

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.

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19 points

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

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36 points

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

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10 points

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

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6 points

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.

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18 points
*

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.

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15 points

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

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7 points

Yes.

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4 points

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.

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13 points

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

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7 points

That would be a great way to piss off the school

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