Transmission of Datagrams
Datagrams from the Internet layer are sent to the Network Interface layer where the data is transmitted over the physical medium. The Network Interface layer transmits data in the form of frames. A datagram is packaged into a frame by the Network Interface layer (see Figure 3.4).
Figure 3.4. An IP datagram is encapsulated in a frame and transmitted over the cables.
However, there are a few factors that need to be considered while encapsulating a datagram within a frame. They are as follows:
The amount of data that can be transmitted in a single frame is called Maximum Transfer Unit (MTU) and varies with the ...