Question

One of the main duties of the network layer is packetizing, explain this duty using your own words.One of the main duties of the network layer is packetizing, explain this duty using your own words

Answer 1

When the application layer produces a stream of data, the transport layer of the network is in charge of packetizing the data. What essentially happens in the transport layer is encapsulation of the payload (bigger size data into packets) at source (CLIENT) via network layer and decapsulation of those packets at the destination (SERVER).

• This basically means breaking up the large messages into smaller pieces that the network can handle.
• It also means adding or removing the header from each packet to enable the reassembly of the data at the receiver side.

Client Server Client Process Message Server process Application layer Message Application layer Transport layer Payroll Packet Header Payroll Packet Header Transport layer Logical channel a. Encapsulation b. Decapsulation