What is a network protocol?
A collection of rules, standards, or conventions established for the exchange of data in a computer network.
What are the three elements of a network protocol?
1. Grammar
Grammar is used to specify the information format. The format, encoding and signal level of data and control information, etc.
2. Semantics
Semantics are used to describe what both communicating parties should do. Control information used for coordination and error handling.
3. Timing
Timing (timing) defines when to communicate, what to say first, what to say next, the speed of speaking, etc. For example, whether to use synchronous transmission or asynchronous transmission.
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