3.2 Transport layer multiplexing and demultiplexing

Video presentation: "Transport layer: Multiplexing and demultiplexing." What are multiplexing and demultiplexing? How is it done? How does it work in TCP and UDP?

Computer networks class.
Jim Kurose
Textbook reading: Section 3.2, Computer Networking: a Top-Down Approach (8th edition), J.F. Kurose, K.W. Ross, Pearson, 2020.

[stan]

Excellent explanation! You should totally write a book about networking.

[ricp]

man... these explanations are awesome!! so much detail, context, and well organized. Thanks so much for uploading this, sir.

[bi_tuxvin]

it's 6am, I've got a networking test at 8am, you saved me man

[csinformationsecurity]

Lovely. The best possible explaination of Ports and Sockets. Thanks.

[anastasiaoikonomou]

You explained this so good!! Thank you, loved the analogy with the car highway made it so much more clearer

[lukasdalhaug]

Very useful video! Thank you for helping me not fail

[userjk]

What a nice explanation on this compare to other videos. Thank you!

[MOSHIURRAHMANVLOG]

Excellent sir, it would be helpful for student if you explain exercise question sir.

[kralalem]

Hello sir, at the end of the video you said for the UDP demultiplexing, only destination port number is required but I think destination ip address is also required for connectionless demultiplexing

[jiteshmeghwal]

Sir does this mean that multiple processes can share the same tcp port ?

[krishnaas]

In the case when UDP is used, If many clients have the same dest port no. say 80 then they would goto the same socket in the destination server right? if so how would the server distinguish between the different packets received as obviously they are from different sources however in UDP only dest port and IP is mentioned, unlike TCP where src port and ip is also included.

[Mike-ukoq]

What happens when 2 distinct processes on a machine accidentally use the same UDP port?

[beepbeeblebrox]

what does the P stand for? program? port?

[turkersubasi]

can anyone help me?
On UDP protocol how does sender knows the destination port number?

[priyeshtandel]

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

[basharjirjees]

At the end if the port number is 80 for all sockets within the server how can the server distinguish which socket can receive the data?

[GorgeousRandyFlamethrower]

I am so drunk rn but this is so informative

[sahilmishra]

12:43 the source port for ip address C must be same in both process p2 and p3 which is 5775 but in p3 source port is written of port A 9157

[karanpreetsingh]

I may search for another thousand years but still may not find someone as sweet and loving as you are.