- ANALOG VS DIGITAL
- ASYNCHRONOUS VS SYNCHRONOUS
- CONNECTION-ORIENTED VS CONNECTIONLESS
- DIGTAL VS ANALOG
- DUPLEX VS SIMPLEX
- ERROR CORRECTION
- Packets are a stream of binary octets of data of some arbitrary length. It is typically used to describe chunks of data created by software, not by hardware. Internet Protocol (IP) creates packets. The term packet is NOT synonymous with the term frame even though many people make that mistake. Information that has been broken into packets is sometimes described as having been packetized.
Types of Packets
Contents of Packets
Packets contain a header which contains network layer protocol data and a payload which carries user data or data from upper layer protocols.
The packet header contains logical addressing information, such as the source and destination IP addresses, and the payload section contains data. It also contains information about the size of the packet, the network layer protocol's options. The header may also contain a checksum field that allows reliable network protocols to detect errors in the packet.