Fluke Network Tester user manual NIC Network Interface Card, Ping, Node Number, Packet, Protocol

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Near-end crosstalk; crosstalk between two twisted pairs measured at the same end of the cable as the disturbing signal source.

NIC (Network Interface Card)

A network interface card is the adapter card that plugs into a computer to provide a network connection.

Ping

Packet Internet Groper (ping) is a common method of accessing devices on a network to see if they are active. Ping sends a packet from one device, attempts to “bounce” it off another device, and “listens” for a reply. A successful ping indicates that the network path to that device (including the routers in between) are up and functioning.

Node Number

Node number identifies the device of interest.

NVP (Nominal Velocity of Propagation)

The speed that a pulse travels along a cable, expressed as a percentage of the speed of light in a vacuum.

Packet

A group of bits in a defined format, containing a data message that is sent over a network.

Protocol

A “language” that a device uses to communicate on a network. Examples of protocols are: TCP/IP or AppleTalk.

Primary Domain Controller

A device that manages the common security policy and user account databases for a group of NetBIOS servers. The election protocols are such that the primary domain controller has a tendency to become the master browser.

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