Lec-70: UDP (User Datagram Protocol) header in Computer Networks in Hindi

[@awasthi_108]

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.

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[@chuadhryayaz6975]

Ok

[@parthstark2934]

bruh

[@ravindrasinghdodiya9506]

Tomorrow is my offline exam and I am reading it today 💥

[@ameerahmad81]

@@ravindrasinghdodiya9506 same here

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You are lucky You have opportunity to do engineering during lockdown.

[@saisilpabijjala7046]

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[@kushagrasrivastava1443]

You need to watch OS

[@ManishSharma-fi2vr]

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.

[@awasthi_108]

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

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[@AshwinCodes]

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[@rockyhandsome5185]

Confidence, knowledge, way of teaching, just loved it. Love from Paksitan. You just made this subject so easy to learn.

[@pushpdantpurigoswami]

Pakistan me bhi padhate he?(just joking)

[@_anshuman_tiwari_]

Length of payload will be 65535-64= 65471

[@mylenovo3904]

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[@jagadeeshkj5561]

Today's the D-DAY for ACN exam and I'm just here preparing. You're the best! 🔥

[@anwaransari8548]

The way of explanation is very good sir.. Bhut hi aasani se smjh gya me. Thank you so much

[@mohammeddanishismaily361]

Bro You are Genius.... I love the way of Teaching.........❤️

[@kumargaurav4055]

sir , you are really a superb teacher.

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[@AmanSharma4u]

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Thanks a lot sir your effort means a lot and has eased us :D

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Really u r genius sir ji.. watched all ur videos.. plz make some videos on SOCKET PROGRAMMING Concept

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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. ❤️

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why not learn from your pakistani guys

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​@@ujjwalnegi2648why not use Google which made in india ? Why are u even watching yt use something made in indis

[@Education..29071]

Thank you so much sir for explaining all the topics in such a great manner🥰😌

[@chinmaypatel3818]

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.

[@OmitA25]

Very nice explanation sir.... Solve some gate problems asked previously on this tcp and udp topic...

[@harshavardhana5907]

Your just flawless in teaching ... Expecting more knowledgeable videos - Subscribed :)

[@fardinahosanshawon9727]

Thanks sir ,love from Bangladesh.

[@yuthikashekhar461]

Amazing explanation!!. Really loved your videos :-)

[@crazykhan8851]

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

[@Sonali-go2if]

Sir , Very easy to understand anything

[@piyushtripathi5566]

Thank you sir ❣️

[@knowledgediary2211]

You teach awesome sir 🙏

[@sachinadder7320]

Just one word for you "awesome"

[@iamdeepakchd]

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??

[@eshikagupta6616]

Exactly my doubt! Need to convert either of them

[@beautifulwhatsappstatus6879]

you are a great teacher..love from Pakistan.

[@ashokkumarpatel6162]

Good explanation! I easily understand.

[@viral_codes]

You are awesome, nature bless you !

[@abhishek04204]

Really great explanation and quality of content is great ❤️

[@saurabhdeshpande8450]

Nice explanation 👍

[@nandanimalik2776]

Sir awesome explanation. plz make more vedio in toc

[@kashyapsantoki4889]

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[@deblinanandy349]

Sir yours videos are superb 🙂😊

[@harshitacharya140]

fabulous nice teaching

[@shivamanhar]

i request you to make more videos sir

[@usamaalioffical]

You are the God of Computer Networks

[@abdulhaseeb8434]

Nice working, Nice effort keep it up :)

[@AnkitSharma-fv7hg]

Wah....😎😎

[@moumitabhattacharyya9482]

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.. 😍😍

[@dirgha1810]

really nice Sir. Thanks :) Ps: nice t-shirt :P

[@GateSmashers]

Thank You for your love and support. Bless you

[@ankitamani988]

I think his 2x speed is much active and better explanation than normal speed 🤓

[@gopalmakmar7878]

nice udp header lecture

[@mohammedmiskeen739]

If checksum field is optional then how header size can be 8 bytes which is mandatory.

[@Shivam-sq1hv]

Same problem anyone help

[@tusharbanik9901]

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?

[@karanvyas5155]

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?

[@swethachilveri4123]

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?

[@bhumikaailawadi5850]

@@swethachilveri4123 The maximum length will be 16 times 1 that is 1111111111111111 which makes it 65535.....that's what I interpreted

[@AhamedKabeer-wn1jb]

Thank you so much

[@mbmalaimani7076]

Super sir.. Pls make more video

[@eswar_anumothu]

TBH i learned hindi from this channel rather content

[@neelendrapatel1869]

nice video

[@nikunjbhavsar1443]

varun sir sandeep maheswari sir ke show pee kaab jaarahe hoo ? plzz sir we want to see you there and thank you for all.

[@appayyatigadi2677]

If UDP is not handling error then what is use of Checksum in it?

[@jkrw3540]

Ip header is added after the tcp header. Then how is pseudo header is calculated then ?

[@deeptika382]

1000th like!! very well explained! thanks a lot sir!

[@hassanmurtaza8061]

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.

[@wonderfullife2185]

Thanks sir. Plz net k liye aur videos banaiye. Plz cover whole syllabus

[@shailendrashinde9410]

Sir udp header length is 8 bits or 8 bytes because 65535 are in bits not bytes

[@zkhan2023]

best video bro

[@EngineerAakashSrivastava]

good video sir...

[@UMANGTAILANG28]

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?

[@OnYxisFeelingit]

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.

[@nitishkumar-yf6qm]

nice

[@shivnathguntod6402]

Well explaination sir.

[@bujjibangaram172]

Super Sir

[@satyaarthchhabra4485]

Gajab

[@swamiahirwar6111]

thank you very much sir

[@GateSmashers]

So nice of you

[@sehrishimran9826]

Please upload video on multiplexing in TCP and UDP

[@akashbansal5501]

Amazing

[@sahilyadav-pl4mt]

In 1:39 sec ,It is UDP not TCP

[@safionweb]

What is the Fanda of connectionless :D Great tutorial btw.

[@johncena-fx2ur]

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

[@sadaffatima2076]

Well explained

[@mohiuddinkhan6640]

very helpful

[@muhammadiqbalbazmi9275]

awesome

[@namitsharma3449]

Thanks sir g 👍

[@karandutta1499]

One question regarding UDP: Why we have to add destination IP address in UDP when it can simply broadcast the message as per its nature?

[@vitalpakistanful]

it is up to you. you can sent it to host or network as a destination. but it is careless.

[@sadaffatima2076]

Best lecture

[@s-l-m.]

Thank you

[@shahinparween3496]

Thank you sir

[@sheharyarkhan5852]

Can we call it a wireless connection?

[@rubyyadav5387]

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.

[@123shehry]

Who the fuck is unliking the video? This was the best video ever!

[@aadeshpise5429]

sir how can we subtract 8 bytes from 65535 ?

[@ZALearning]

May be mistakenly done that part

[@swethachilveri4123]

ig thats a mistake

[@Maajwalagi]

good sir g....sir g pls ,,,,, GSM and CDMA; Services and Architecture of GSM ispe video bnaye pls its my request

[@shaikhmasarratanjum597]

Sir can plzz upload more videos on comp.network

[@rksacademybangla]

love the ASMR effect

[@mayankprajapati9310]

confusing bit and bytes substraction sir pls clear how can we subtract 8 bytes of header from total lenght ??

[@EverydayIslam4u]

TCP example: WhatsApp UDP example: instant Messaging

[@tushargoyal4537]

sir please upload multiplexing videos

[@pratikghule3862]

I am following your channel for my ugc net cs 2020 and gate cs 2020 , but i am unable to solve problems. How can i utilize much from your videos?

[@shubhampal6521]

sir , can you upload the notes of computer network and share that link...please it will help us to remember this.

[@vanshajgoel8783]

But i read on gfg that tcp mein packets different paths see travel kar sakte hain 🤔🤔

[@vishals9353]

Even in tcp, packet can take different paths.