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
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.
That's why UDP is connectionless as it only have the destination port to the destination server. It doesn't have other tuples destination ips and port as in TCP to identify it correctly and built a authentic connection.
Excellent explanation! You should totally write a book about networking.
He did write a network textbook. You can find the info at the first slide.
@@arthurli8587 Dude I think it was kind of a joke :D
lmao
@@arthurli8587 joke went over your head
haha nice one
man... these explanations are awesome!! so much detail, context, and well organized. Thanks so much for uploading this, sir.
ikr!
it's 6am, I've got a networking test at 8am, you saved me man
LIAR ahahah
Lovely. The best possible explaination of Ports and Sockets. Thanks.
How an someone look so friendly?
A lot of professors and people in academia tend to give off that vibe.
Think its common among teachers that like their job teaching the right course to the right audience.
he is like khargosh!
You explained this so good!! Thank you, loved the analogy with the car highway made it so much more clearer
Very useful video! Thank you for helping me not fail
What a nice explanation on this compare to other videos. Thank you!
He is one of the book authors
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
yeah you are absolutely right. In his textbook + slides, it is written correctly. reference slide: chapter - Transport layer, Page 17
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.
That's why UDP is connectionless as it only have the destination port to the destination server. It doesn't have other tuples destination ips and port as in TCP to identify it correctly and built a authentic connection.
does sender choose dest port no arbitrarily?
@@turkersubasi yes
Sir does this mean that multiple processes can share the same tcp port ?
Yes, as the arriving datagrams can be demultiplexed based on the senders ip and port number as well.
Abdullah is exactly right. On a web server, multiple processes proving web service will share the same TCP port number (80). Jim
@@JimKurose I think you should talk about welcoming sockets and the limits on how many such client sockets can be opened on a given machine.
What happens when 2 distinct processes on a machine accidentally use the same UDP port?
Pipelining
Pipelining
Thank you Sir , It is very useful for me.😇
I love this man
can anyone help me?
On UDP protocol how does sender knows the destination port number?
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
so is it wrong on the slide? it confused me
Thank YOU!
what does the P stand for? program? port?
I am so drunk rn but this is so informative
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?
By source IP and port
What's the ending music name
Excellent sir, it would be helpful for student if you explain exercise question sir.
BITS ke bache yaha bhi aagaye
I may search for another thousand years but still may not find someone as sweet and loving as you are.
creep
@@Mike-uk2oq It's kinda sweet
I may search for another thousand years but still may not find someone as sweet and loving as karanpreet is.
sir SIP lagado
🧠