Communications Protocol in simple English, is a protocol may be defined as the Syntax, Semantics and Synchronization to determine communication. Protocols may be implemented by hardware, software or combination of both. At the lowest level, a protocol defines the behavior of the connecting hardware. If the communication is in a computer network, we call it network protocol. To reach agreement, a protocol, may be it is Communications Protocol developed into a technical standard. It is Communications Protocol, not Communication Protocol – its a terminology itself.
Typical Properties of Communications Protocol
Commutations Protocol and Protocols in general; vary greatly in purpose and complexity. Most protocols make one or more of the following statement to be true:
- Determine the underlying physical connection (e.g. LAN or WLAN) or the existence of the other endpoint of the connection
- Data flow control (handshaking)
- Agreement of the various connection characteristics Like a message begins and ends
- How a message is formatted
- What is done with damaged or improperly formatted messages ( correction error )
- How unexpected loss of connection is detected
- Termination of the connection
Meaning of Communications Protocol
Communications protocol are the foundation of the Internet and contribute significantly to its performance and success. Most important among these are the Internet Protocol (IP) and the Transmission Control Protocol (TCP). TCP / IP are the most widely used Internet protocols for a collection (protocol suite). Most of the communication protocols of the Internet are described in the RFCs of the Internet Engineering Task Force (IETF).
Generally, only the simplest protocols are used alone. Most protocols, especially network protocols, are composed of layers of the protocol stack , in which the various tasks listed above are divided among the different protocols of the stack. While a protocol stack denotes a specific combination of protocols that work together, it is a reference model – a software architecture that enumerates each layer together with the services they should provide.
The classic seven-layer model is the OSI model, which is used for protocol stacks and peer entities in terms. Educationally, the reference model also offers the opportunity in general; concepts of software engineering -such as encapsulation, modularity and delegation of tasks. This model has survived, although many of its original components were replaced by the ISO Standard. However, the OSI model is not the only reference model.