Lec-63: Transport Layer | Responsibilities of Transport Layer | OSI Model | Computer Networks

In this video Varun sir has explained Transport Layer and its responsibilities.
Transport Layer provides transparent transfer of data between end users, providing reliable data transfer services to the upper layers. The transport layer controls the reliability of a given link through flow control, segmentation and de-segmentation, and error control.

0:00 - Introduction
0:26 - End to End Delivery
5:05 - Reliability
9:34 - Error Control
10:56 - Congestion Control and Flow Control

►Computer Networks (Complete Playlist):

Other subject-wise playlist Links:
--------------------------------------------------------------------------------------------------------------------------------------
►Design and Analysis of algorithms (DAA):
►Database Management System:
► Theory of Computation
►Artificial Intelligence:
►Computer Architecture:
►Operating System:
►Structured Query Language (SQL):
►Discrete Mathematics:
►Compiler Design:
►Number System:
►Cloud Computing & BIG Data:
►Software Engineering:
►Data Structure:
►Graph Theory:
►Programming in C:
►Digital Logic:

---------------------------------------------------------------------------------------------------------------------------------------
Our social media Links:
--------------------------------------------------------------------------------------------------------------------------------------
►For Any Query, Suggestion or notes contribution:
#TransportLayer #OSIModel #GATE #UGCNET #PSU

[sarfarajshaikh]

His friends would have been most lucky people during college times. Ek raat mein concept clear😅. Respect💓

[vishaljhaveri]

Responsibilties of TRANSPORT LAYER:
1. End to end delivery of data. (port to port delivery)
2. Reliability ( We prefer TCP to UDP as TCP establishes a connection oriented nw and the data sent by the TCP is received by the receiver in ordered sequence.
3. Error Control( checksum)
4. Congestion and Flow control ( STOP & WAIT ; GO BACK & SR)
5. Segmentation ( data from APP layer comes in bits which are transformed into a SEGMENT through tcp/ udp and then sent it to the Network Layer.
6. Multiplex and DEMUX.

[chloekimball]

I wish that you taught every single course taught in CS undergrad. Your teaching abilities are phenomenal. Thank you for your hard work!

[yoboi.]

Itna accha explanation ki video 2x speed me play krne pr v clear smjh ata hai !!

[Seekingtruth]

Varun singla sir. You are a very humble person.. I like you and your teaching skills.. you taught me every single point very well. thank you a lot sir..

[josemorris]

You r so clear in your fundamentals, hats off for making all.lectures so simple. Keep it up

[mohammedfuzailfz]

The Transport Layer is the fourth layer of the OSI (Open Systems Interconnection) Model, which provides end-to-end communication between two communicating devices in a computer network. The main function of the transport layer is to ensure that data is transmitted smoothly and error-free from the source to the destination.

The transport layer is responsible for:

Segmentation and reassembly: The transport layer divides the data received from the upper layer into small segments and reassembles them at the destination.

Flow control: The transport layer controls the flow of data to prevent the destination device from being overwhelmed with data.

Error control: The transport layer ensures that data is transmitted error-free and in the correct order.

Connection-oriented and connectionless communication: The transport layer provides both connection-oriented and connectionless communication services.

Multiplexing and demultiplexing: The transport layer uses port numbers to multiplex and demultiplex data to different applications.

Some of the commonly used protocols in the transport layer are TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). TCP is connection-oriented, whereas UDP is connectionless. TCP is reliable and ensures that data is transmitted without errors, whereas UDP is not reliable and does not guarantee delivery of data.

In summary, the transport layer is responsible for ensuring that data is transmitted smoothly and error-free from the source to the destination by providing flow control, error control, and multiplexing and demultiplexing of data.

[abhishekgore]

Sir your lectures are really great, nice and simple explanation
I watched your lectures for system programming too
Really nice lecture
Keep it up sir
Thank you

[soomrokhushboo]

Best ever platform
Please include more courses that are related with IT field and also provide us notes

[mohitgehlot]

I finished my CN final exam just now (1 hr ago) man it was awesome .I shared this channel with my friends and even they felt exam easy because of you
Thank you guruji..🙏🔥

Count me in as loyal subscriber😀

[zainazam]

Divided by border, United with Studies ( love from Pakistan )

[watchandgainknowledge]

sir you are just very very good...
great explanation...
thnkQ so Much sir

[srvgr]

Because of u... I was able to complete whole computer network course in one day before external exam...and scored 57/70.

[scocvora]

One of the Best information/ intros to Transport Layer

[manishraj]

lot of thanks times like from heart).
again thanks so much for providing to playlist regarding to COMPUTER NETWORKING

[sweenyrathor]

I am watching videos on all the subjects, can't write thanks a ton in every video.... Mujhe subjects itne acche kabhi nahi lage ❤️ Thanks from bottom of my heart, my good wishes to u n ur family 🙏

[vaishnavambre]

You : did you understand what i explained
Me : yes and i also understand that "there is no finish line".

[deepakdhanwade]

#respect Varun Sir. Computer Science field chhod diya tha mene qk mujhe samajh nahi aata tha. aapke lecture dekh k interest jaag Gaya. har chiz logically aur simple tarike se samjhate ho.

[juhibhavsar]

Thank you so much from bottom of my heart 🙏🏻🙏🏻🙏🏻The way you explain and teach is phenomenal. Best teaching technique keep it up brother.

[faridyama]

Very very well explained, Thank you and Respect !