this post was submitted on 02 Oct 2024
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Packet Loss (lemmy.world)
submitted 2 weeks ago* (last edited 2 weeks ago) by [email protected] to c/programmer_humor
22 comments fedilink hide all child comments
 

Found this in the depths of my storage. Not sure where its from but might improve the day of some people ^^

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[–] [email protected] 54 points 2 weeks ago* (last edited 2 weeks ago) (4 children)

Hello, would you like to hear a TCP joke?

Edit: since no one is biting here’s the full joke

"Hi, I'd like to hear a TCP joke."
"Hello, would you like to hear a TCP joke?"
"Yes, I'd like to hear a TCP joke."
"Ok, I'll tell you a TCP joke."
"Ok, I will hear a TCP joke."
"Are you ready to hear a TCP joke?"
"Yes, I am ready to hear a TCP joke."
"Ok, I am about to send the TCP joke. It will last 10 seconds, it has two characters, it does not have a setting, it ends with a punchline."
"Ok, I am ready to get your TCP joke that will last 10 seconds, has two characters, does not have an explicit setting, and ends with a punchline."
"I'm sorry, your connection has timed out. Hello, would you like to hear a TCP joke?"

[–] [email protected] 41 points 2 weeks ago (1 children)

would you like to hear the udp joke? you might not get it, but I don't really care that much

[–] [email protected] 2 points 2 weeks ago

This was better than mine

[–] derpgon 23 points 2 weeks ago (1 children)

Sure, but we need to shake hands first.

[–] [email protected] 19 points 2 weeks ago (1 children)

I will now start transmitting the TCP joke.

[–] [email protected] 5 points 2 weeks ago

sonic inflation erotica

[–] [email protected] 13 points 2 weeks ago

H ll wou d l k o h ar a UDP j ke?

[–] [email protected] 3 points 2 weeks ago

Sorry I only do udp, but I won’t tell you that

[–] [email protected] 32 points 2 weeks ago (2 children)

To be fair, because of window size management it only takes 1% packet loss to cause a catastrophic drop in speed.

Packet loss in TCP is only ever handled as a signal of extreme network congestion. It was never intended to go over a lossy link like wifi.

[–] [email protected] 15 points 2 weeks ago (2 children)

Doesn't wifi have its own retrial protocol? It's been a long time since I've read the standard, but I think it's almost lossless from the POV of TCP.

[–] [email protected] 18 points 2 weeks ago

I believe so, yes. Every 802.11 frame is effectively ACK'd. Makes a mockery of OSI layering, but so does everything else.

[–] [email protected] 6 points 2 weeks ago

None built in from what I recall. That was from back in 2011, so it's possible things changed since.

Reading through, it looks like retries do exist, but remember that duplicate packets are treated as a window reset, so it's possible that transmission succeeded but the ack was lost.

I remember the project demos from the course though - one team implemented some form of fast retry on two laptops and had one guy walk out and away. With regular wifi he didn't even make it to the end of the hall before the video dropped out. With their custom stack he made it out of the building before it went.

I'll need to dig through to find the name of what they did.

[–] [email protected] 3 points 2 weeks ago

On the other side of the spectrum packet loss is a key feature of some of the layers below tcp, like path-mtu discovery.

[–] [email protected] 26 points 2 weeks ago* (last edited 2 weeks ago) (2 children)

Found this in the depths of my storage. Not sure where its from but might improve the day of some people ^^

I also remember someone posting that article

[–] [email protected] 11 points 2 weeks ago

This is wild. Didn't knew gangs do shit like this.

[–] [email protected] 3 points 2 weeks ago

Not a bad price if the service is any good

[–] [email protected] 16 points 2 weeks ago (1 children)

Network monitoring engineers: explains for the umpteenth time that a node reporting down isn't just a single dropped packet

[–] [email protected] 4 points 2 weeks ago

Geez...we all have learning experiences but I feel node down and packet dropped should be a clear distinction in the mind of anyone in IT...but people will surprise you

[–] [email protected] 6 points 2 weeks ago (2 children)

It's actually panic in both

[–] [email protected] 4 points 2 weeks ago

Packets are lost all the time. Especially when uploading or downloading.

[–] [email protected] 3 points 2 weeks ago

May I interest you in using unwrap_or instead of unwrap

[–] [email protected] 3 points 2 weeks ago

Mr Krab there surely doesn't have the same customers I have, if he's so relaxed