how to build a loopback device
Submitted 2 weeks ago by gandalf_der_13te@feddit.org to [deleted]
Comments
M137@lemmy.today 2 weeks ago
kryptonianCodeMonkey@lemmy.world 2 weeks ago
IT: “Did you verify that your data cable is connected to the outlet in the wall?”
Client: “Of course I did. I’m not an idiot!”
Brkdncr@lemmy.world 2 weeks ago
My eye is twitching.
Lost_My_Mind@lemmy.world 2 weeks ago
Careful. Amazon could sue you!
Treczoks@lemmy.world 2 weeks ago
We had such a case in the company, way back before switches got smart enought to deal with this.
Our IT department was not exactly happy…
Kn1ghtDigital@lemmy.zip 2 weeks ago
… What does this do to a network anyway? Nothing, right?
marcos@lemmy.world 2 weeks ago
If you remember to use a cross-over cable, it ruins the address resolution protocol and stops everything from working.
Modern routers have code exclusively to detect it and disable the ports.
Thunderwolf@lemmy.world 2 weeks ago
And if you don’t have spanning tree enabled, this could be a big problem
haywire7@lemmy.world 2 weeks ago
Network loops are real. Network loops are common. Network loops are the leading cause of people screaming “for fucks sake!” After spending far too long looking for other solutions to why the network goes down intermittently.
hperrin@lemmy.ca 2 weeks ago
If you have a good switch or router, correct. If you have cheap consumer level crap, it could potentially cause a lot of issues until you unplug it. It wholly depends what’s on the other end of those jacks.
TipRing@lemmy.world 2 weeks ago
If you did it at my office, nothing because typically only one of those jacks is cross connected (the other is a spare wire) also our switches use spanning tree. Most network loops I’ve seen have been caused by logical configuration errors.
frank@sopuli.xyz 2 weeks ago
Yeah, gotta keep those plugged. It’s just a service for fully draining/refilling the network for maintenance
flop_leash_973@lemmy.world 2 weeks ago
flango@lemmy.eco.br 2 weeks ago
Powaaahhh
LillyPip@lemmy.ca 2 weeks ago
Is this a call for help?
starchylemming@lemmy.world 2 weeks ago
Do this at work to increase productivity!
skankhunt42@lemmy.ca 2 weeks ago
I did this in college (2011) once… Friday class was going over stuff I already understood and got bored, found a cable and played with it for a few min before plugging in both ends to the wall. Monday morning get to class and it’s cancelled because the network is down. I then understood what I did and unplugged the cable.
Haven’t told anyone until today.
starchylemming@lemmy.world 2 weeks ago
Your poor school it guy went through something
rounding_error@lemmy.today 2 weeks ago
We do a little trolling
neidu4@piefed.social 2 weeks ago
When the guy in the server room ran out of patch cables
oyzmo@lemmy.world 2 weeks ago
hehe, that gives IT the painfull task of manual searching 😂
RememberTheApollo_@lemmy.world 2 weeks ago
127.0.0.1
Bakkoda@lemmy.world 2 weeks ago
Internets require a zero static loop. Gotta keep the bits flowing out they degrade.
MehBlah@lemmy.world 2 weeks ago
Test your spanning tree.
Sir_Premiumhengst@lemmy.world 2 weeks ago
Token circle
bhamlin@lemmy.world 2 weeks ago
And with enough experience can evolve into token sphere.
TootSweet@lemmy.world 2 weeks ago
You plugged those into the wrong ports. You’re supposed to plug both ends into here:
220v power outlet
Don’t worry if you have to use a lot of force to get it in there. That’s just to make sure it doesn’t come out if you trip over it.
teslekova@lemmy.ml 2 weeks ago
What the fuck country uses that socket?
Junkers_Klunker@feddit.dk 2 weeks ago
NEMA is an American standard used in North America and parts of Asia. NEMA 10-30 specifically is a dual voltage socket that delivers 120V or 240V depending on whether you use L1/Neutral or L1/L2. It isn’t used anymore though as it isn’t grounded.