UDP and TCP

[JustTheTip]

Hi guys,

 

I have been getting into networking a little more  recently and i wanted to get to know some of the terminology

What does UDP and TCP mean

 

Any other terminology would be most appreciated, as much as i know.

 

Thanks guys

[Levent]

http://en.wikipedia.org/wiki/Transport_layer

[Archangel1994]

UDP and TCP are internet protocols, ways of sending data.

 

In a very short summary:

 

UDP = Throw it into the connection and hope it arrives. If packet loss occurs there is no specific mechanism to remedy this (It will just send it all again or not at all). It's basically throw it on the connection and fuck it, I'm out

TCP = Error correction and making sure it arrives. Has mechanics in place to resend specific lost packets

[Sushicat89]

TCP: Transmission Control Protocol

UDP: User Datagram Protocol

 

Generally speaking...

 

TCP: We use it to transmit words, texts, letters, webpages, etc (http, https, ftp)

TCP is more reliable and the data is guaranteed to reach its destination

 

UDP: used for games, audio/calls, etc (VOIP, DNS)

UDP is a bit less reliable

[EmoPolarbear]

The quick answer is that they are the two basic methods of sending data over the internet.

 

TCP is "guaranteed" to reach it's location if it is possible, but to do this has overhead which makes it slower.

 

UDP is faster as it lacks the overhead needed to ensure it's delivery making it more reliable.

 

Video streaming and Gaming generally use UDP as if data doesn't arrive on time, arriving late can often be worse than not arriving at all.

[LucaZ]

TCP. Transmission Control Protocol

UDP User Datagram protocol.

 

UDP is an unreliable way of packets transmitting through a large network and is used for services like video streaming so that it can determine the quality of the video and a it's a way of playing multiplayer. A dropped packet is also why people tend to lag in multiplayer.

 

TCP is best to be used for websites, file transferring, mail services, and torrenting.

 

Netflix uses TCP to transmit http onto your browser. UDP is used when you're watching netflix. 

[Samfisher]

Basically TCP, there is a handshake on both ends.  When data is sent, it waits for confirmation of receipt.

 

UDP just sends out regardless of any feedback.  You can see what kinds of services can use each protocol