network analyzer


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network analyzer

[′net‚wərk ′an·ə‚līz·ər]
(computer science)
An analog computer in which networks are used to simulate power line systems or physical systems and obtain solutions to various problems before the systems are actually built.

network analyzer

A hardware device or server software that captures packets transmitted in a network for routine inspection and problem detection. Also called a "sniffer," "packet sniffer," "packet analyzer," "packet sampler," "traffic analyzer" and "protocol analyzer," the hardware analyzer plugs into a port on a network switch and decodes one or more protocols into a human-readable format for the network administrator. It can also store packets for further analysis later on.

In order to alert admins about traffic problems, packets are analyzed in real time. Hardware network analyzers can detect voltage and cable problems, whereas software analyzers cannot. See IPFIX, sFlow and port mirroring.
References in periodicals archive ?
The configurable 2- or 4-port network analyzers offer a unique single-connection solution for CW and pulsed S-parameter, compression, intermodulation distortion (IMD) and noise figure measurements.
NYSE: A) today announced the extension of its source-corrected noise-figure measurement capability in PNA-X network analyzers to 43.
Lot 3 supply and commissioning of a network analyzer with RF receiver and an external generator synthesized.
We seek a versatile network analyzer that can be used for both low frequency and for high frequency measurements in a single sweep, and single calibration.
By controlling a vector network analyzer, the software can quickly identify each resonator in a coupled-resonator bandpass filter, its center frequency and the coupling between resonators.
Agilent's new N523xA PNA-L vector network analyzers replace existing N5230C models.
Telekom Srbija with the help of Motive Network Analyzer will be able to maximize this investment with its Upgrade Predictor functionality, ensuring that the service requested by the customer can be delivered with the necessary quality.
Since S-parameter measurements are always ratioed measurements (measured transmitted and reflected signals are divided by the incident signal), these errors are called tracking errors because they indicate how well the various receivers in the network analyzer track one another across a frequency sweep.
Motive Network Analyzer allows Telekom Srbija to maximize this investment with its Upgrade Predictor functionality, which ensures that the service requested by the customer can be delivered with the required quality.
The ECal technique presents a number of well known, repeatable states or standards to the network analyzer.
Now with the launch of the Codenomicon Network Analyzer, the technique is commercially available for everyone.

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