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128 IQ Probe User Manual 61200214L1-1
Glossary
packet-switching network
A telecommunications network based on packet-switching technology, wherein a
transmission channel is occupied only for the duration of the transmission of the
packet. Contrast with frame relay network.
parameter
A numerical code that controls an aspect of terminal and/or network operation.
Parameters control such aspects as page size, data transmission speed, and
timing options.
ping
An internet protocol standard that provides loopback on demand for any device
in an IP network. One device "pings" another by sending a loopback request to
the device's IP address.
point-to-point
Type of communications link that connects a single device to another single
device, such as a remote terminal to a host computer.
PVC
permanent virtual circuit. A frame relay logical link, whose endpoints and class
of service are defined by network management. Analogous to an X.25
permanent virtual circuit, a PVC consists of the originating frame relay network
element address, originating data link control identifier, terminating frame relay
network element address, and termination data link control identifier.
Originating refers to the access interface from which the PVC is initiated.
Terminating refers to the access interface at which the PVC stops. Many data
network customers require a PVC between two points. Data terminating
equipment with a need for continuous communion use PVCs. See also DLCI.
remote configuration
A feature designed into ADTRAN products that allows remote units to be
configured from a local unit or VT 100 compatible terminal.
router
A device that supports LAN-to-LAN communications. Routers may be equipped
to provide frame relay support to the LAN devices they serve. A frame-relay-
capable router encapsulates LAN frames into frame relay frames and feeds those
frame relay frames to a frame relay switch for transmission across the network.
A frame-relay-capable router also receives frame relay frames from the network,