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This article contains too much jargon and may need simplification or further explanation. Please discuss this issue on the talk page, and/or remove or explain jargon terms used in the article. Editing help is available. (August 2009) |
In computer networking, a frame is a digital data transmission unit on the Layer 2 of the OSI model.[1]
RFC 1122[2] defines a frame as: "the unit of transmission in a link layer protocol, and consists of a link-layer header followed by a packet."
Frames are used for data exchange between two points via a direct physical or logical link. Depending on the Layer 2 protocol employed, the receiver of frames uses one of several multiplex techniques to distinguish more than one logical data streams (sometimes dubbed virtual circuits) which run over a single shared medium.
At the receiver, one of several frame synchronization processes detects the beginning and end of the frame.
See also
References
- ^ http://www.tcpipguide.com/free/t_DataLinkLayerLayer2.htm
- ^ Request for Comments 1122 - "Requirements for Internet Hosts -- Communication Layers", Internet Engineering Task Force, Network Working Group, October 1989.
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