Octal-Port DMT ATU-C Line Card
Glossary
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Cisco IOS Release 12.1(6)DA
IP address
The 32-bit address assigned to hosts that want to participate in a TCP/IP Internet.
ITU
The International Telecommunications Union; a telecommunications standards body.
L
LCD
Loss of Cell Delineation
LODS
Loss Of Delay Synchronization
LOF
Loss Of Frame.
loopback
A diagnostic test that returns the transmitted signal back to the sending device after it has passed
through a network or across a particular link. The returned signal can then be compared to the
transmitted one. The discrepancies between the two help to trace the fault. When trying to locate a
faulty piece of equipment, loopbacks will be repeated, eliminating satisfactory machines until the
problem is found.
LOS
loss of signal.
M
Management
Information Base
See MIB.
MIB
Management Information Base. A collection of objects that can be accessed via a network
management protocol, such as SNMP and CMIP (Common Management Information Protocol).
N
NI-2
A second generation network interface card.
P
PVC
Stands for permanent virtual connection. A fixed virtual connection between two users: The public
data network equivalent of a leased line. No call setup or clearing procedures are needed.
R
route
The path that network traffic takes from its source to its destination. The route a datagram may
follow can include many gateways and many physical networks. In the Internet, each datagram is
routed separately.
