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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.
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References in periodicals archive ?
An expert affiliated with the Kennel Club of Pakistan, Kamran Iliyas, says no organisation has the certification or skill to train sniffer dogs other than the Pakistan Army.
Former Lothian and Borders police officer Jim Rutherford, who spent 26 years as a police dog handler, said: "If someone carrying drugs sees a sniffer dog, obviously they're likely to try to evade it.
"I then brought the sniffer dog, which found two kilos of hashish in the boot of the car."
Alix, 24, told the ECHO: "We saw police, the army turning up, they brought out German Shepherd sniffer dogs and we saw them go onto the plane, then they came back down and started searching all the airport staff.
The sniffer dogs of the unit took part in 68 operations conducted against the
In 2009, four sniffer dogs were purchased for this unit and four handlers were also appointed to look after them.
This is where we hope our sniffer dogs will really come into their own, as their sensitive noses can detect mains water at incredibly low concentrations."
In complete contrast, sniffer dog training starts with chasing and retrieving a rubber ball or a Kong.
More than 20 sniffer dogs of the K9 department of the police have been involved in the search operation to find the boy.
sent the WC-135 Constant Phoenix, sometimes called a "nuclear sniffer," which reportedly has landed at Surrey airbase in the U.K.
Two held with help of sniffer dogs after killing a man: Two persons were held by the political administration with help of sniffer dogs after they allegedly killed a man and injuring another in Upper Kurram Agency on Tuesday.