ADTRAN Cable T1 ESF CSU ACE User Manual page 63

T1 ESF CSU ACE
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 net-
work 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 form which the
PVC is initiated. Terminating refers to the access interface at which the PVC stops. Many data network custom-
ers require a PVC between two points. Data terminating equipment with a need form continuous communion
use PVCs. See also DLCI.
remote configuration
A feature designed into ADTRAN DSU/CSU products that allow remote DSU/CSU to be configured from a
local DSU/CSU or VT100 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 in a 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, strips the frame relay frame off each frame to
produce the original LAN frame, and passes the LAN frame on to the end device. Routers connect multiple
LAN segments to each other or to a WAN. Routers route traffic on the Level 3 LAN protocol (e.g., the internet
protocol address). See also bridge.
61204025L1-1B © 2004 ADTRAN, Inc
Appendix D. Glossary
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