Early token release

A multiplestation access scheme for avoiding contention in packet networks in which each station can sense the presence of carrier signals from other stations and thus avoid transmitting a packet that would result in a collision. See also collision detection.
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A feature/benefit provided by service providers that allows clients to consume more bandwidth when needed and if the carrier network has the capacity. Such consumption is often charged at a much higher rate.
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Security measure designed to establish the validity of a transmission, message, or originator, or a means of verifying an individual's authorization to receive specific categories of information. The act of identifying or verifying the eligibility of a station, originator, or individual to access specific categories of information. Typically, a measure designed to protect against fraudulent transmissions by establishing the validity of a transmission, message, station, or originator. The process of verifying or testing that the identity claimed by a subject is valid.
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(1) Capability for data transmission in only one direction at a time between a sending station and a receiving station. (2) A circuit designed for data transmission in both directions but not at the same time.
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Extent to which protective measures, techniques, and procedures must be applied to information systems and networks based on risk, threat, vulnerability, system interconnectivity considerations, and information assurance needs. Levels of protection are: 1. Basic: information system and networks requiring implementation of standard minimum security countermeasures. 2. Medium: information system and networks requiring layering of additional safeguards above the standard minimum security countermeasures. 3. High: information system and networks requiring the most stringent protection and rigorous security countermeasures.
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