In the past article, we have learned different layers of the OSI reference model. We have examined the capacity of each layer and relationship with different layers as well similarly as with remote end. For instance, the meeting layer at the source will cooperate with the meeting layer of the objective. For this connection, each layer adds a header before the information from the prior layer. This header contains control data connected with the convention utilizes at that layer. This cycle is the exemplification Process. The means of the epitome interaction are:
- Upper layers (Application layer, Presentation layer and Session layer) convert the message to information and send it to the Transport layer which is the core of the OSI Model.
- The Transport layer changes the information over to sections and sends it to the Network layer.
- The Network layer changes the portions over to bundles and sends these parcels to the Data Link layer.
- The Data Link layer changes the parcels over to casings and afterward sends casings to the Physical layer.
- The Physical layer changes the casings over to parallel 1’s and 0’s looking like electrical or light signals and sends them across the organization.
The figure underneath shows the information epitome process at each layer; where header data is added.
Information De-Encapsulation Process
At the less than desirable end, the interaction is turned around, with headers being peeled off at each layer. This opposite cycle is known as de-exemplification. As displayed in the figure underneath when Layer 1 takes the information and sends it to Layer 2. Here the Layer 2 header, as well as the trailer, inspected and eliminated.
The subsequent Layer 3 PDU, then, at that point, shipped off Layer 3. Layer 3, thusly, inspects the header in the PDU and eliminates it. The subsequent PDU shipped off Layer 4. Additionally, each layer eliminates the header added by the comparing layer at the source prior to sending the information to the upper layer. At last, the Application layer eliminates the Layer 7 header and sends the information to the application.