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Data Link Layer: Carrier in Networks and the Basis of Security

L Band TDMA MESH (ADHOC) Data Link is a compact data link based on TDMA communication algorithm, enabling the use of both point-point and point-multipoint communication.
Thursday, 19 October 2023 / Published in : Blog

Data Link Layer: Carrier in Networks and the Basis of Security

Computer networks are an indispensable part of today’s modern communication world. These networks ensure that data is transmitted quickly and reliably around the world. The Data Link layer, which forms the basis of this communication infrastructure, plays a critical role in regulating network communication, increasing reliability and providing security. In this article, we will examine what the Data Link layer is, its tasks and importance.

Key Tasks of Data Link Layer:

Creating a Framework: The Data Link layer converts the transmitted data into frames to organize for physical transmission. These frames allow data to be transmitted in packages.

Addressing: Each data frame contains the physical addresses of the sender and receiving devices. These addresses help direct the frame to the correct destination.

Error Control: The Data Link layer uses error control techniques to detect whether the transmitted frames are faulty and to correct errors when necessary. This ensures that data is transmitted reliably.

Flow Control: Regulates the transmission speeds of devices on the network and controls the data flow. This ensures that a fast-sending device does not block a slow device or overload the network.

Embellishment: In some networks, it detects conflicts (collision) and manages how to handle them. Conflicts occur when multiple devices try to send data at the same time.

Importance of Data Link Layer:

The Data Link layer ensures that networks operate reliably and regularly. Editing data transmission plays a critical role in increasing reliability and speed. It is also an important part for network security and can include security measures such as authentication, encryption and access control.

The Data Link layer forms the basis of network communication and ensures reliable transmission, editing and protection of data. The duties and importance of this layer cannot be excluded for the efficient operation and security of computer networks.

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