We can simply do a btech degree just with your videos...and its unnecessary to attend college... totally loved your videos ... watching it from operating system...thx a ton...💓
00:01 UDP is a connectionless protocol that works like a postal service. 01:27 UDP is a protocol that allows data to be sent without establishing a connection. 02:57 UDP header has only 4 options, one of which is the Source Port. 04:25 UDP header in Computer Networks 05:52 The UDP header in Computer Networks has a fixed size of 8 bytes. 07:22 UDP header with 8 bytes is compulsory for sending data 08:46 UDP header in Computer Networks 10:23 UDP is unreliable and packets may get lost or reach through different paths
In this lecture sir told that In TCP Connection all packets follow the same path but it's not correct. What if that path is damaged or down for while in between the transmission. That's why packets can be follow multiple paths but it is guaranteed that all packets reach to destination. I read that on an article. But overall lecture is awesome!! . I put this comment here so that those who have same doubt like me can resolve it.
00:01 UDP is a connectionless protocol that works like a postal service. 01:27 UDP is a protocol that allows data to be sent without establishing a connection. 02:57 UDP header has only 4 options, one of which is the Source Port. 04:25 UDP header in Computer Networks 05:52 The UDP header in Computer Networks has a fixed size of 8 bytes. 07:22 UDP header with 8 bytes is compulsory for sending data 08:46 UDP header in Computer Networks 10:23 UDP is unreliable and packets may get lost or reach through different paths Crafted by Merlin AI.
Tomorrow is our final exam.... Until now we had no idea what we have studied in this smester, Zero per concept about CCn, after listening to you, literally you made it so easy for us, thanks a bunch, now this subject seems quite interesting. ❤️
Sir bahhtttt achaa padate hai aaap bilkul esa lgta hai jaise kisi class m bethe ho thankuu sir..... Sir aap plz DAA sub k topics pr bhi bnye vedio..... I think aapke lecture se vo subject bilkul easy ho jayega.... Plz rply.... M waiting
sir at 7:03 in this video we are subtracting 8 byte which is header size of UDP protocol directly from the number 65535 so that we can get the size of payload/data but sir how can we directly subtract the bytes from bit number??
it was nice explanation. Thanks for the video. but i have one doubt is that if congestion detection happen after threshold value or in congestion avoidance phase so what will be the threshold value?
Well done, well explained, I listened TCP and UDP header lecture, everything explained well, one thing I noticed that you are using "packet" while explaining the flow, I think packet word does not fit correct at layer 4, it comes in layer 3. btw you did great job much keep it up.
While calculating Checksum, why do we include Pseudo IP Header given that UDP is Transport Layer protocol and IP header will actually be appended when the packet reached the network layer. If this is supposed to be a part of the network layer, then why don't we add source and destination IP addresses?
Checksums are used in networking to detect errors in data transmission. In the case of UDP (User Datagram Protocol), a checksum is calculated over the UDP header, the data payload, and what's known as a pseudo IP header. The inclusion of the pseudo IP header serves a specific purpose in ensuring data integrity and is a part of the design of UDP. The pseudo IP header is not part of the actual IP header that gets added when the packet is transmitted over the network; it is used during the calculation of the UDP checksum at the transport layer before the packet is sent. The purpose of the pseudo IP header is to provide additional information that helps in verifying that the UDP packet was received correctly by the intended recipient, without relying on the actual IP header, which may not yet be available at the transport layer when the checksum is calculated. The pseudo IP header typically includes the following fields: 1. Source IP Address: The source IP address of the sender. 2. Destination IP Address: The destination IP address of the receiver. 3. Reserved (Set to 0): A reserved field set to zero. 4. Protocol (UDP): The protocol number for UDP (17). 5. UDP Length: The length of the UDP packet, including the UDP header and data payload. Including the source and destination IP addresses in the pseudo header helps in distinguishing packets intended for different destinations and detecting errors in the UDP packet's transmission. It also provides a layer of consistency in the checksum calculation, allowing the recipient to verify the integrity of the packet and discard it if errors are detected. In summary, the pseudo IP header is a part of the UDP checksum calculation process at the transport layer, and it includes source and destination IP addresses to aid in error detection and ensure data integrity. It is not the same as the actual IP header that gets added at the network layer during transmission.
Sir, you said unique hash value will be shared along with the data and it will be verified at the receiver end, but what if that unique hash value gets hampered during the data transfer?
Connectionless transfer is faster because no time is wasted in establishing connection first, by sending synchronization and acknowledge packages first. It is used for small data or message transfers which are not sending sensitive information
![Путин и ПЕСКОВ ждут звонка от ТРАМПА 😁 [Пародия]](/img/n.gif)
I m here about to write online exam in lockdown of pre final yr from engineering.... U r just LIT 🔥 n thank you
Ok
bruh
Tomorrow is my offline exam and I am reading it today 💥
@@ravindrasinghdodiya9506 same here
You are lucky You have opportunity to do engineering during lockdown.
Your efforts will enlighten lacs of students. Tussi great ho sirji.
We can simply do a btech degree just with your videos...and its unnecessary to attend college... totally loved your videos ... watching it from operating system...thx a ton...💓
You need to watch OS
00:01 UDP is a connectionless protocol that works like a postal service.
01:27 UDP is a protocol that allows data to be sent without establishing a connection.
02:57 UDP header has only 4 options, one of which is the Source Port.
04:25 UDP header in Computer Networks
05:52 The UDP header in Computer Networks has a fixed size of 8 bytes.
07:22 UDP header with 8 bytes is compulsory for sending data
08:46 UDP header in Computer Networks
10:23 UDP is unreliable and packets may get lost or reach through different paths
These playlists will continue to rock for years. Thank you for all the efforts.
You made me understand the real meaning of being an IT Engineer ❣️
Confidence, knowledge, way of teaching, just loved it. Love from Paksitan. You just made this subject so easy to learn.
Pakistan me bhi padhate he?(just joking)
you are amazing sir , i hope college teachers will be like this.
In this lecture sir told that In TCP Connection all packets follow the same path but it's not correct. What if that path is damaged or down for while in between the transmission. That's why packets can be follow multiple paths but it is guaranteed that all packets reach to destination. I read that on an article. But overall lecture is awesome!! . I put this comment here so that those who have same doubt like me can resolve it.
Today's the D-DAY for ACN exam and I'm just here preparing. You're the best! 🔥
your achievement is our passion.. on the shirt ❤❤
The way of explanation is very good sir..
Bhut hi aasani se smjh gya me.
Thank you so much
00:01 UDP is a connectionless protocol that works like a postal service.
01:27 UDP is a protocol that allows data to be sent without establishing a connection.
02:57 UDP header has only 4 options, one of which is the Source Port.
04:25 UDP header in Computer Networks
05:52 The UDP header in Computer Networks has a fixed size of 8 bytes.
07:22 UDP header with 8 bytes is compulsory for sending data
08:46 UDP header in Computer Networks
10:23 UDP is unreliable and packets may get lost or reach through different paths
Crafted by Merlin AI.
Your all videos are very helpful I have done all the preperation of my CN exam by your channel . Your way of explaning is just awesome 👏
Sir your videos are easy to remember and understanding..i request you to make videos on ip header and dhcp header.. it's really helpful for us.
Gate Smashers - Your Achievement is our Passion 🧡
Your just flawless in teaching ... Expecting more knowledgeable videos - Subscribed :)
Bro You are Genius.... I love the way of Teaching.........❤️
Sir g thank you sooooooooo muchhhhhhhh......🥰🥰🥰🥰♥️ T-shirt is so nyc 😍🥰 sir apka koi b lecture ik dfa smj ln 💯 smj ajati... Thanks again 🥰
Really u r genius sir ji.. watched all ur videos.. plz make some videos on SOCKET PROGRAMMING Concept
Very nice explanation sir.... Solve some gate problems asked previously on this tcp and udp topic...
Amazing explanation!!. Really loved your videos :-)
Thank you sir... For all videos... Your a best 👍 I'm pass out a engineering
sir , you are really a superb teacher.
Thank you sir ❣️
Tomorrow is our final exam.... Until now we had no idea what we have studied in this smester, Zero per concept about CCn, after listening to you, literally you made it so easy for us, thanks a bunch, now this subject seems quite interesting. ❤️
why not learn from your pakistani guys
@@ujjwalnegi2648why not use Google which made in india ? Why are u even watching yt use something made in indis
thnkss alott ji....sir...Gid bless u forever...
Sir bahhtttt achaa padate hai aaap bilkul esa lgta hai jaise kisi class m bethe ho thankuu sir.....
Sir aap plz DAA sub k topics pr bhi bnye vedio..... I think aapke lecture se vo subject bilkul easy ho jayega.... Plz rply.... M waiting
sir at 7:03 in this video we are subtracting 8 byte which is header size of UDP protocol directly from the number 65535 so that we can get the size of payload/data but sir how can we directly subtract the bytes from bit number??
Exactly my doubt! Need to convert either of them
You teach awesome sir 🙏
Nice working, Nice effort keep it up :)
Gajab
fabulous nice teaching
Just one word for you "awesome"
Wah....😎😎
Nice explanation 👍
Thank you so much sir for explaining all the topics in such a great manner🥰😌
Thanks a lot sir your effort means a lot and has eased us :D
Sir , Very easy to understand anything
Length of payload will be 65535-64= 65471
You are awesome, nature bless you !
Really great explanation and quality of content is great ❤️
nice video
nice
i request you to make more videos sir
nice udp header lecture
Good explanation!
I easily understand.
you are a great teacher..love from Pakistan.
really nice Sir. Thanks :)
Ps: nice t-shirt :P
Thank You for your love and support. Bless you
best video bro
Thanks sir ,love from Bangladesh.
Sir awesome explanation. plz make more vedio in toc
Sir yours videos are superb 🙂😊
Super Sir
Thank you so much
Ip header is added after the tcp header. Then how is pseudo header is calculated then ?
Sir u r really great 🔥 very helpful for every subject
good video sir...
👍👌
Amazing
You are the God of Computer Networks
1000th like!! very well explained! thanks a lot sir!
awesome
yaayyyyyyyyyyy 500K
it was nice explanation. Thanks for the video. but i have one doubt is that if congestion detection happen after threshold value or in congestion avoidance phase so what will be the threshold value?
Well explaination sir.
Super sir.. Pls make more video
Thank you
Well explained
Thanks sir g 👍
Best lecture
very helpful
Sir udp header length is 8 bits or 8 bytes because 65535 are in bits not bytes
Thank you sir
Thankyou
I think his 2x speed is much active and better explanation than normal speed 🤓
In IPV6 check sum is not present...(according to wikipedia)....But in IPV4 check sum is there... Pls clear it..
You are a superb teacher.. 😍😍
If UDP is not handling error then what is use of Checksum in it?
If the header length is 16 bits then the max. length can be 2 to the power 16 bits then how is length 2 to the power 16 bytes?
yess i too have same doubt. The length is 16bits but number of values which can fit in 16 bits space is 2^16. Dont you think so?
@@swethachilveri4123 The maximum length will be 16 times 1 that is 1111111111111111 which makes it 65535.....that's what I interpreted
love the ASMR effect
thank you very much sir
So nice of you
Thanks sir. Plz net k liye aur videos banaiye. Plz cover whole syllabus
❤❤❤❤❤
Can we call it a wireless connection?
If checksum field is optional then how header size can be 8 bytes which is mandatory.
Same problem anyone help
Well done, well explained, I listened TCP and UDP header lecture, everything explained well, one thing I noticed that you are using "packet" while explaining the flow, I think packet word does not fit correct at layer 4, it comes in layer 3. btw you did great job much keep it up.
TBH i learned hindi from this channel rather content
varun sir sandeep maheswari sir ke show pee kaab jaarahe hoo ? plzz sir we want to see you there and thank you for all.
While calculating Checksum, why do we include Pseudo IP Header given that UDP is Transport Layer protocol and IP header will actually be appended when the packet reached the network layer. If this is supposed to be a part of the network layer, then why don't we add source and destination IP addresses?
Checksums are used in networking to detect errors in data transmission. In the case of UDP (User Datagram Protocol), a checksum is calculated over the UDP header, the data payload, and what's known as a pseudo IP header. The inclusion of the pseudo IP header serves a specific purpose in ensuring data integrity and is a part of the design of UDP.
The pseudo IP header is not part of the actual IP header that gets added when the packet is transmitted over the network; it is used during the calculation of the UDP checksum at the transport layer before the packet is sent. The purpose of the pseudo IP header is to provide additional information that helps in verifying that the UDP packet was received correctly by the intended recipient, without relying on the actual IP header, which may not yet be available at the transport layer when the checksum is calculated.
The pseudo IP header typically includes the following fields:
1. Source IP Address: The source IP address of the sender.
2. Destination IP Address: The destination IP address of the receiver.
3. Reserved (Set to 0): A reserved field set to zero.
4. Protocol (UDP): The protocol number for UDP (17).
5. UDP Length: The length of the UDP packet, including the UDP header and data payload.
Including the source and destination IP addresses in the pseudo header helps in distinguishing packets intended for different destinations and detecting errors in the UDP packet's transmission. It also provides a layer of consistency in the checksum calculation, allowing the recipient to verify the integrity of the packet and discard it if errors are detected.
In summary, the pseudo IP header is a part of the UDP checksum calculation process at the transport layer, and it includes source and destination IP addresses to aid in error detection and ensure data integrity. It is not the same as the actual IP header that gets added at the network layer during transmission.
Sir can plzz upload more videos on comp.network
Please upload video on multiplexing in TCP and UDP
But i read on gfg that tcp mein packets different paths see travel kar sakte hain 🤔🤔
Sir iski next video bana chuke ho Kya.
Sir, you said unique hash value will be shared along with the data and it will be verified at the receiver end, but what if that unique hash value gets hampered during the data transfer?
sir , can you upload the notes of computer network and share that link...please it will help us to remember this.
checksum isliye use hota ha k agr kahin rasty ma hamara packet corrupt ho jaye to destination ko pta lg sky k data corrupt ha ya normal.
What is the Fanda of connectionless :D
Great tutorial btw.
Connectionless transfer is faster because no time is wasted in establishing connection first, by sending synchronization and acknowledge packages first. It is used for small data or message transfers which are not sending sensitive information
In 1:39 sec ,It is UDP not TCP
sir how can we subtract 8 bytes from 65535 ?
May be mistakenly done that part
ig thats a mistake
Who the fuck is unliking the video? This was the best video ever!
confusing bit and bytes substraction sir pls clear how can we subtract 8 bytes of header from total lenght ??