The information tranmitted across a network is a combiniation of the numbers one and zero. In order for these numbers to be meaningful, rules are established regarding the organization of the numbers. These rules are based on a basic unit of information called a packet.
Packets may have the following components:
The above components are combined into three sections: header, data, and trailer.
|IP Header||IP Data||CRC
Every Protocol has a method for distingishing computers from each other. This process is called addressing. This address information must be included in the packets so that the information goes to the correct destination. The addressing methods vary between the different protocols.