Network Performance Management

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  • call failure rate (CFR)

    The call failure rate (CFR) is the percentage of calls to an ISP or any network provider that fail to get through. The CFR is commonly used as a statistical measure in assessing Internet service providers.  Definition

  • weighted fair queueing (WFQ)

    Weighted fair queueing (WFQ) is a method of automatically smoothing out the flow of data in packet-switched communication networks by sorting packets to minimize the average latency and prevent exaggerated discrepancies between the transmission effic...  Definition

  • signal-to-noise ratio (S/N or SNR)

    In analog and digital communications, signal-to-noise ratio, often written S/N or SNR, is a measure of signal strength relative to background noise.  Definition

  • PacketHound

    PacketHound is a product that aims to help an enterprise regulate traffic that might otherwise slow services down for all users of a local area network.  Definition

  • network operations center (NOC)

    A network operations center (NOC) is a place from which administrators supervise, monitor and maintain a telecommunications network.  Definition

  • N1

    N1 is Sun Microsystems' strategy for making a network environment as easy to manage as a single machine.  Definition

  • Mbps (millions of bits per second or megabits per second)

    Mbps is a measure of bandwidth (the total information flow over a given time) on a telecommunications medium, standing for 'millions of bits per second' or 'megabits per second.'  Definition

  • loopback test

    A loopback test is a test in which a signal in sent from a communications device and returned (looped back) to it as a way to determine whether the device is working right or as a way to pin down a failing node in a network.  Definition

  • loopback

    In telephone systems, a loopback is a test signal sent to a network destination that is returned as received to the originator. The returned signal may help diagnose a problem.  Definition

  • Kbps (kilobits per second)

    In the U.S., Kbps stands for kilobits per second (thousands of bits per second) and is a measure of bandwidth (the amount of data that can flow in a given time) on a data transmission medium.  Definition

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