Really worth the wait. Don't know why, jar jar binks just flashed in my mind.
@sheesshoaib38165 ай бұрын
Its like chandler bing's blah balh blahh
@fsnaps5 ай бұрын
Jim always smiling, makes the lessons so much more interesting
@asjadsalahuddin59184 жыл бұрын
Made it so easy to understand , great work.
@ahmedalhallag33382 жыл бұрын
I can't believe that the father of all computer networks papers and courses has only 1.1k subscribers :(
@vishweshgk6752 Жыл бұрын
Ong 😩
@daroboro513711 ай бұрын
10k after 1 year, so it's not so bad
@alkskillz73356 ай бұрын
Your generation were just lacking. Dw GenZs here to fix yall 😂
@Felipe-53 Жыл бұрын
Thank you for blessing us with such well crafted lessons!
@MayCodeGuide Жыл бұрын
if anyone like me looking for a summery: The video discusses the challenges of reliable communication over an unreliable channel, exploring simple and increasingly realistic channel models. It goes on to explain the development of a reliable data transfer protocol, including the use of checksums and sequence numbers, and differentiates between unidirectional and bidirectional communication. The protocol's finite state machines and operations are also illustrated.
@hitarthmukundraykanakia31373 жыл бұрын
This is pure gold!! Thank you so much Professor Ross :)
@advaitamallik77032 жыл бұрын
*Kurose. Ross is a different dude.
@suyashmisra740611 ай бұрын
He's a little confused but he's got the spirit
@starless9 Жыл бұрын
21:48 when receiver is in "wait for 1 from below" state and receives a packet from sender with sequence 0 it means... that the sender was looking for the ACK sequence 0 packet from receiver but it was corrupted in transmission. So the sender resends the sequence 0 packet and on receiving it uncorrupted receiver will resend the ACK sequence 0 packet so sender can move on to "wait for 0 from below"
@erayatsz380110 ай бұрын
Thanks bro that was very helpful
@LK-xq2jy5 ай бұрын
you are smart
@t.sathwik5708 Жыл бұрын
explained the concepts of the text book in a fun and easy manner
@ricp Жыл бұрын
Excellent lesson, thanks a lot, Professor!
@PenguinMaths3 жыл бұрын
Great series!
@compscienthusiast Жыл бұрын
I really appreciate breaking this down into FSMs and getting a better understanding of this process. However, I'm wondering how the receiver would know that the checksum is valid, and what would determine a non-corrupt checksum. I've used a checksum comparison in python before in the past but that relied on the sender receiving a packet back and then comparing that the sent and received packets have the same checksum. Using that logic, I'm wondering how we can determine that a packet is valid with a checksum if we don't know what to compare the checksum against. What would I be missing?
@starless9 Жыл бұрын
Granted I'm new to this topic but I'd think the checksum would be generated independently on the receiver side to compare against the checksum in the packet from sender. This could be done using a hash function similar to what is used with hash tables, applied on the data in the entire packet. With large enough prime numbers used in the hash function so the probability that an uncorrupted packet and corrupted packet will generate the same hash value/checksum will be very low. There is the possibility that the checksum in the packet from sender will be corrupted but that just causes a retransmit...
@janetan96202 жыл бұрын
3.4-2: kzbin.info/www/bejne/rKnKeWmoYq58aLM
@abdulrahman200419 күн бұрын
i love you man
@SahilKumar-tj5lk Жыл бұрын
awesome !! Thanks a lot Professor
@hayotkamchiev9 ай бұрын
He has great taste in movies :)
@SantoshKumar-lz2ti Жыл бұрын
Question: at 13:40, for the sender fsm when the sender goes from 'wait for nak or ack' to 'wait for call from above' there is a event rat_rcv(rcvpkt),, does this mean the receiver sends a ACK/NAk messgae in the form of pkt ??
@christio02 Жыл бұрын
Yes, from the state "sender is waiting for ACK/NAK" from receiver, it only goes to "wait for call from above" when it receives an ACK from the receiver. If it receives a NAK, it will send a packet to the receiver and still be in in the "waiting for ACK/NAK" until it gets an ACK
@zakariaabdi18182 жыл бұрын
How can bits be flipped ; Error with the hardware link layer(fibre optic for example)?
@abcde94212 жыл бұрын
During link transmission , and during storage in router memory
@ashishroy43268 ай бұрын
Hi GIT students, one night before exam
@SantoshKumar-lz2ti Жыл бұрын
ar 22:03 if it sends ACK , then the receiver will be like, now i should send next pkt so 1 is lost....is the sequnece 01010101?
@nadiahalmutairy53502 жыл бұрын
UDP is reliable protocol or not?
@DigaDupSuck2 жыл бұрын
unreliable
@thinkos67302 жыл бұрын
The Protocol itself is unreliable. But you can make adjustments just as in the video on the application Layer Level to implement a reliable Service
@nitheshravikumar946211 ай бұрын
why do we send the packet through the unreliable channel ?
@bryan0x0510 ай бұрын
We can't just hope the channel is reliable every time, we need to be prepared to deal with an unreliable channel. This is how you compensate for that.
@vishweshgk6752 Жыл бұрын
Sir I am big fan 🥰
@sandeepnbhandarkar4164 Жыл бұрын
Bigger fan sir
@mario999kart2 жыл бұрын
In refer to important digital reliable data transfer, like digital money, value and important information (documents, ownership rights) exchange in the same setting, doesn't blockchain and PoW fit in here perfectly?
@LeeLee-vk2dz Жыл бұрын
Save my life
@cby1189 Жыл бұрын
goat
@delee84505 ай бұрын
i hope i find it earlier
@LouettaMcinturf6 күн бұрын
5141 Satterfield Mission
@dev_jun Жыл бұрын
🥰
@devmahad10 ай бұрын
rdt 1 - 2
@coolalgorithms7 ай бұрын
NAK or NACK? I thought it was NACK
@karanpreetsingh59662 жыл бұрын
Chemistry is you touching my arm and setting fire to my mind.
@Shashank9706 Жыл бұрын
:)
@AkashdeepDixit-x2h8 ай бұрын
kzbin.info/www/bejne/pKq4eYiqot2KnZI
@wubbalubbadubdub5883 ай бұрын
Wubba Dubba
@SantoshKumar-lz2ti Жыл бұрын
ar 22:03 if it sends ACK , then the receiver will be like, now i should send next pkt so 1 is lost....is the sequnece 01010101?
@SantoshKumar-lz2ti Жыл бұрын
ar 22:03 if it sends ACK , then the receiver will be like, now i should send next pkt so 1 is lost....is the sequnece 01010101?