TCP Connections in Computer Networks

TCP Connections in Computer Networks is explained with the following timecodes:

0:00 – TCP Connections – Computer Network
1:02 – Basics of TCP Connections
3:51 – TCP Connection Establishment
17:19 – TCP Connection Data Transfer
22:52 – TCP Connection Termination

The following points are covered in this video:
0. Computer Network
1. Transport Layer
2. TCP Segment Header
3. TCP Connections
4. Basics of TCP Connections
5. TCP Connection Establishment
6. TCP Connection Data Transfer
7. TCP Connection Termination

Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Computer Network.

#TCPConnections #TCPSegmentHeader #TransportLayer #ComputerNetwork #EngineeringFunda

A TCP (Transmission Control Protocol) connection is a reliable, connection-oriented protocol used for data transmission over IP networks. TCP ensures that data sent from one device to another arrives intact, in the correct order, and without errors.

Here’s how a TCP connection typically works:

1. Establishing the connection:
– The client initiates the connection by sending a TCP request (SYN) packet to the server.
– The server responds with a SYN-ACK packet, indicating its willingness to establish a connection.
– The client acknowledges the server’s response with an ACK packet, and the connection is established.

2. Data transmission:
– Once the connection is established, both the client and server can send data to each other.
– Data is divided into small units called segments, which are encapsulated into TCP packets.
– Each packet contains a sequence number to ensure ordered delivery and a checksum for error detection.
– The packets are sent over the network and may take different routes.
– The receiver acknowledges the received packets by sending ACK packets back to the sender.

3. Connection termination:
– Either the client or the server can initiate the connection termination.
– The initiating party sends a FIN (finish) packet to indicate its desire to end the connection.
– The other party acknowledges the FIN with an ACK packet.
– The party that initiated the termination waits for an ACK from the other party.
– Once the ACK is received, the connection is closed, and both parties are informed.

TCP provides several features to ensure reliable data transmission, including flow control, congestion control, and error detection. It guarantees that data is delivered in the correct order and without errors, but it does introduce some overhead due to its connection-oriented nature.

TCP is widely used for applications that require reliable and ordered delivery of data, such as web browsing, file transfers, email, and many other network services. .