A - Definitions

  • A

    aggregator

    Like its synonym concentrator, an aggregator is any device that serves multiple other devices or users either with its own capabilities or by forwarding transmissions in a more concentrated and economical way.

  • akamaize

    For a Web site, to akamaize (pronounced AHK-uh-myez) is to accelerate the delivery of Web files by placing copies on servers closer to the user than the server that delivers the main file for a Web page.

  • Aloha (Aloha method)

    Aloha, also called the Aloha method, refers toa simple communications scheme in which each source (transmitter) in a network sends data wheneverthere is a frame to send.

  • American Wire Gauge (AWG)

    American Wire Gauge (AWG) is a U.S. standard set of non-ferrous wire conductor sizes.

  • AMTOR (amateur teleprinting over radio)

    AMTOR (amateur teleprinting over radio) is a digital communications method used by radio amateurs, in which the frequency of errors is reduced by handshaking or character repetition.

  • anti-replay protocol

    The anti-replay protocol is part of the Internet Engineering Task Force (IETF) Internet Protocol Security (IPSec) standard.

  • anycast

    In Internet Protocol Version 6 (IPv6), anycast is communication between a single sender and the nearest of several receivers in a group. The term exists in contradistinction to multicast, communication between a single sender and multiple receivers, and unicast, communication between a single sender and a single receiver in a network.

  • APPC (Advanced Program-to-Program Communication or LU 6.2)

    APPC (Advanced Program-to-Program Communication, sometimes called LU 6.2) is a communication protocol and programming interface standard that operates in the presentation layer and the session layer of the Open Systems Interconnection (OSI) communications model.

  • Appleshare

    The AppleShare protocol is a communications protocol from Apple Computer that allows client applications in a computer to exchange files with and request services from server programs in a computer network.

  • AppleTalk

    AppleTalk is a set of local area network communication protocols originally created for Apple computers.

  • application delivery controller (ADC)

    An application delivery controller (ADC) is a network component that manages and optimizes how client machines connect to web and enterprise application servers.

  • Application layer

    Sitting at Layer 7 -- the very top of the Open Systems Interconnection (OSI) communications model -- the application layer provides services for an application program to ensure that effective communication with another application program on a network is possible.

  • application-aware networking (app-ware networking)

    Application-aware networking is the capacity of an intelligent network to maintain current information about applications that connect to it and, as a result, optimize their functioning as well as that of other applications or systems that they control.

  • application-defined networking

    Application-defined networking (ADN) is a networking scenario in which applications have the ability to adapt network environments to meet their needs, rather than having resources allocated by the network.

  • ARCNET

    ARCNET is a widely-installed local area network (LAN) technology that uses a token-bus scheme for managing line sharing among the workstations and other devices connected on the LAN.

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