Tcp/ip
Protocol Suite
Transmission Control Protocol (TCP) is one of the core protocols of the Internet protocol suite.
The commonly used protocols are the TCP/IP protocol suite. This is a set of protocols that work together, not a single protocol.
IPsec (IP security) is a suite of protocols for securing Internet Protocol (IP) communications by authenticating and/or encrypting each IP packet in a data stream. IPsec also includes protocols for cryptographic key establishment.
"Internet" has two main meanings: When written with a lower case "i" - "internet", it refers to a network built using the "internet protocol suite" of protocols; the most important of which are commonly known as TCP/IP. This could be a "private" network or a "public" network (connected to the Internet - see below). When written with an uppercase "i" - "Internet", it refers to the global system of interconnected computer networks running the internet protocol suite.
The TCP/IP Stack is the complete set of internet protocols that are part of the TCP/IP bundle/suite. They include HTTP, FTP, SMTP and P2P.
TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.TCP/IP is a "protocol suite", i.e., a group of related protocols, protocols that work together. It is named after two of the most important protocols, TCP and IP - but the TCP/IP stack is made up of many more protocols, it is not just those two.
The most popular is the TCP/IP suite of protocols
protocol suite
TCP/IP protocols are implemented by software, except for the bottom physical layer, which is implemented in hardware.
The protocol stack used on the Internet is the Internet Protocol Suite. It is usuallycalled TCP/IP after two of its most prominent protocols, but there are other protocolsas well. The TCP/IP model is based on a fi ve-layer model for networking. Frombottom (the link) to top (the user application), these are the physical, data link, network,transport, and application layers. Not all layers are completely defi ned by themodel, so these layers are "fi lled in" by external standards and protocols. The layershave names but no numbers, and although sometimes people speak of "Layer 2" or"Layer 3," these are not TCP/IP terms. Terms like these are actually from the OSI ReferenceModel.The TCP/IP stack is open, which means that there are no "secrets" as to how itworks. (There are "open systems" too, but with TCP/IP, the systems do not have to be"open" and often are not.) Two compatible end-system applications can communicateregardless of their underlying architectures, although the connections between layersare not defi ned.The term "protocol stack" is often used synonymously with "protocol suite" as animplementation of a reference model. However, the term "protocol suite" properlyrefers to a collection of all the protocols that can make up a layer in the referencemodel. The Internet protocol suite is an example of the Internet or TCP/IP referencemodel protocols, and a TCP/IP protocol stack implements one or more ofthese protocols at each layer.