Editing Datagram (section)

== Structure ==
Each datagram has two components, a [[header (computing)|header]] and a data  [[Payload (computing)|payload]]. The header contains all the information sufficient for routing from the originating equipment to the destination without relying on prior exchanges between the equipment and the network. Headers may include source and destination addresses as well as [[Type–length–value|type and length fields]]. The payload is the data to be transported. This process of nesting data payloads in a tagged header is called [[Encapsulation (networking)|encapsulation]].