What is TCP? Advantages and How It Works?

TCP is one of the basic and important network protocols. Together Bizfly Cloud Learn about this protocol in the following detailed article!

What is TCP?

TCP (Transmission Control Protocol) is an important network protocol used in transmitting data over a certain network. A protocol within a network is a set of rules and procedures that control the conduct of data transmission so that everyone in the world regardless of geographical location, regardless of the application, software they are using. All users can operate in the same way called TCP.

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TCP is usually associated with IP (Internet Protocol) in a pair known as TCP/IP. You may come across this term in the network settings on your computer, smartphone, or handheld device. IP handles the addressing and forwarding of packets from source to destination while TCP controls the reliability of the transmission.

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TCP's Mission

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The function of TCP is defined to control the reliability of data transmission. On networks like the Internet, data is transmitted in the form of packets, these packets are clusters of data that are transmitted completely independently across the network, gathered together as they arrive at the destination address, and then returned to the destination. original material.

Data transmission on a network is handled in layers, with each protocol on one layer performing additional work for the other layers. This set of layers is called the protocol stack. TCP and IP work closely together, layer upon layer.

Eg: in a stack you can have HTTP - TCP - IP - WiFi pairs. This means that when a computer visits a web page, the computer can use the HTTP protocol to receive the web page in HTML form, TCP will control the data transmission, control the IP channel on the network (eg. e.g. internet), and Wifi transmits over the local network.

TCP is therefore fully responsible for the transmission. A reliable link is one that ensures all requirements are met. Some specific cases are as follows:

– All packets reach their destination, no packets are lost or lost. Banh won't want to send missing lines or characters in an email or text message.

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– There will be no transmission delays that affect data quality. Everyone wants online audio or video calls to be smooth, uninterrupted, and uninterrupted.

– All packets are returned in order. The characters and words in the email need to be arranged in order or the information you send will become completely meaningless.

How does TCP work?

TCP labels packets with numbers. TCP will also ensure that data reaches its destination within a specified time (a period of several hundred milliseconds known as a timeout) and subject to a number of other specifications. For each packet received, the sending device is notified via a packet called an acknowledgment. After the timeout expires and no acknowledgment is received, the sender sends a copy of the lost or delayed packet. Out-of-sequence packets will also not be acknowledged. As a result, all data packets will always be assembled in order, without loopholes, within a defined and acceptable timeout.

TCP address

While IP has a complete mechanism for assigning addresses called IP addresses, TCP does not have such a complex addressing system. Rather, TCP does not need this system. TCP only uses numbers provided by the device it is running on to determine where to receive and transmit packets, for which services. These numbers are called ports. For example, web browsers often use port 80 for TCP, port 25 for email, etc. The port number usually comes with an IP address to indicate a service, for example: 192.168.66.5:80.

According tosearchnetworking.techtarget.com

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