Protocols:-

Protocols & their purpose:-

• Protocols are set of rules which govern the data communication between two or more than two devices.
• Protocols defines What, How & When the data is to be communicated.

Protocols consist of three components:-

1) Syntax:-

• It defines the format of the data i.e presentation which includes Source & Destination address, Flags .

2) Semantics:-

• Semantics deals with the control information and it analyses and interprets the control information and depending on the interpretation action is taken.
• Example:- Decides the routes for the delivery of data depending on the destination address.

3) Timing:-

• Timing deals with synchronization and speed matching between Sender & Receiver and it decides how much and how fast the data is to be send.