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Legend of TCP and UDP protocol table cells for port numbers Cell Description Yes Described protocol is assigned by IANA for this port, and is: standardized, specified, or widely used for such. Unofficial Described protocol is not assigned by IANA for this port, but is: standardized, specified, or widely used for such. Assigned
This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows the header. Both fields are eight bits wide.
UDP is a connectionless protocol meaning that messages are sent without negotiating a connection and that UDP does not keep track of what it has sent. [ 1 ] [ 2 ] UDP provides checksums for data integrity , and port numbers for addressing different functions at the source and destination of the datagram.
The physical layer is responsible for physical transmission of the data, link encapsulation allows local area networking, IP provides global addressing of individual computers, and TCP selects the process or application (i.e., the TCP or UDP port) that specifies the service such as a Web or TFTP server.
The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP), and the Internet ...
The IEEE 11073 service-oriented device connectivity (SDC) family of standards defines a communication protocol for point-of-care (PoC) medical devices. The main purpose is to enable manufacturer-independent medical device-to-device interoperability .
Wireless Application Protocol (WAP) is an obsolete technical standard for accessing information over a mobile cellular network. Introduced in 1999, [ 1 ] WAP allowed users with compatible mobile devices to browse content such as news, weather and sports scores provided by mobile network operators , specially designed for the limited ...
In networking equipment configuration, a term-of-art distinction is often drawn: The term protocol strictly refers to the transport layer, and the term service refers to protocols utilizing a protocol for transport. In the common case of TCP and UDP, services are distinguished by port numbers.