3.3 Connectionless Transport: UDP

[@ayeyo4081]

Note to add: Why does UDP even have checksum for "error detection" if it doesn't do any "error recovery"? - Error recovery is when we retransmit because we have detected error - Error detection is when we simply check for an error Textbook states: "Although UDP provides error checking, it does not do anything to recover from an error. Some implementations of UDP simply discard the damaged segment; others pass the damaged segment to the application with a warning" - Computer Networking: A top-down approach Kurose, Ross Note #2: So why should we ever use UDP? - When timing is more important and little loss of data does not matter too much - For example, Online Live Meetings (e.g. like zoom or skype). Timing is more important than a few frames of the video not showing properly or a few words not heard by the listener (speaker can just repeat the word simply). At these points we actually don't even want to retransmit to recover the error (lost/glitched frames of video or miliseconds of glitched/lost sound). Because the moment these data mattered has already passed. However we want our online meeting to be as much as like a real meeting minimising delays, so timing is important. Hence we should use UDP.

[@karanpreetsingh5966]

Do I love you? My god, if your love were a grain of sand, mine would be a universe of beaches.

[@Saad-pj7ip]

Based

[@advaitamallik7703]

Still quantifiable and less than infinity. So, I don't love you, you don't love me.

[@aayushsenapati5002]

keep it in your pants🍆🤣

[@garvitjain1623]

Do I love karanpreetsingh? My god, if karanpreetsingh's love were a grain of sand, mine would be a universe of beaches.

[@severjanlici]

You said "Its pretty boring but like eating vegetables , like eating brocoli its actually good for you" WELL HAH. I LOVE BROCOLI!

[@ricp]

Excellent lecture, thank you professor!

[@plainfilth1126]

Thank you!

[@gabrieldylan9789]

I think everyone should give RFC 768 a read. It adds perfectly to this crucial lecture.

[@elhamfarahani8582]

Thankssssss a million 😍 ur videos are really great.

[@dukara702]

Excellent video

[@priyeshtandel2101]

Thank you Sir , It is very useful for me.😇

[@lucastorales7904]

how the fuck are you that good, sir! thank you so much

[@vilasdm8544]

Thanks. Sir

[@StevenEckert-l3c]

Jonathon Dale

[@klevisimeri607]

🧠

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