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The Data Link Layer

The Data Link Layer is responsible for establishing the communication path. Data Frames, constructed as dictated by the Layer,  travel on the established path. This communication path is supported by the physical medium. The path is free from errors. In other words, the communication path that is established has a high degree of reliability. 

A standard exists for organizing the data into frames. We say that the Data Link Layer specifies a standard for framing messages. 

The correctness of messages is ensured by the Data Link Layer. This helps to preserve the integrity of Network Transmissions. 

It must be said that framing of messages serves the purpose of correctness of Data that is received. The correctness of received messages is the advantage that is  earned by framing of messages using the Data Link Layer.

It can be drawn that framing activity that is articulated by the Data Link Layer is marked by effectiveness. It serves to enable error free Data Communication. 

The Data Link Layer also tells us how we are to go about putting the Data Frames on the communication lines. The Data Link Layer specifies the access standard for data frames as regards the physical medium. 

In other words, the Data Link Layer has an expressed standard that encompasses   communication activities using data frames. The guidelines for using the communication channel by the data frames is specifically detailed in crystal clear terms.

Ordered transmission is the responsibility of the Data Link Layer. The requirement for imposing order is to ensure  meaningfulness of communication. Ordered communication signifies the victory of the Data Link Layer.

The Data Link Layer serves the Network Control Layer. The Physical Layer dedicates itself to render service to the Data Link Layer.


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