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Data Link Layer: Basic Carrier of Computer Networks and Firewall

Saturday, 21 October 2023 / Published in : Blog

Data Link Layer: Basic Carrier of Computer Networks and Firewall

Computer networks have become an indispensable part of today’s world. These networks shape the business world and communication by enabling the transmission and sharing of data. However, the Data Link layer, which is a basic building block for the regulation and security of these complex networks, is often overlooked. In this article, we will examine the role, functions and impact of the Data Link layer in depth.

Functions of the Data Link Layer:

Creating Data Frames: The Data Link layer converts high-level data into low-level data frames, arranging it for transmission. These frameworks ensure that data is transmitted continuously and regularly.

Addressing: Each network device has a unique physical address (MAC address ). The Data Link layer identifies the sender and recipient in communication using these addresses.

Error Control: The Data Link layer checks for the accuracy and integrity of the transmitted data. It detects and fixes errors in data frames.

Flow Control: Regulates the data sending and receiving speeds of devices on the network. This optimizes data traffic on the network and prevents overloads.

Security Measures: The Data Link layer can take various measures to improve network security. These measures include authentication, encryption and access control.

Effect of Data Link Layer on Security:

The Data Link layer is an essential component of network security. It improves network security thanks to its functions such as identification of devices, error control and secure data transmission. It also prevents unauthorized access and plays an important role in securing the network.

The Data Link layer forms a solid foundation of computer networks. It regulates data transmission, checks for errors and improves network security. This layer plays an indispensable role in ensuring reliable transmission of data and ensuring network security in today’s connected world.

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