Table of Contents
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ITU-T
L
LAN
Layer 1
LB
LCP
Link
LLC SNAP
LOF
Loop
LOS
A B C D E F G H I
Issue 7 - 05/02
International Telecommunications Union - an
international organisation that develops standards
and defines interfaces for telecommunications
systems. Formerly known as the CCITT.
Local Area Network - a system consisting of computer
and communications hardware and software
connected by a common transmission medium,
usually limited to a scope of a few miles.
The physical layer of the Open Systems
Interconnection (OSI) reference model for example an
ADSL line.
Loopback.
Link Control Protocol.
Any physical connection on a network between two
separate devices, such as an ATM switch and its
associated end point or end station.
Logical Link Control, Sub Network Address Protocol
is a protocol used in IP Encapsulation.
Loss of Frame - a condition at the receiver or a
maintenance signal transmitted in the physical
framing indicating that the receiving equipment has
lost frame delineation. This is used to monitor the
performance of the physical layer.
A loop is used to redirect data. There are two types of
loop - remote and local.
Loss of Signal - a condition at the receiver or a
maintenance signal transmitted in the PHY overhead
indicating that the receiving equipment has lost the
received signal. This is used to monitor the
performance of the physical layer.
L N O P Q R S T U V W X
J K
Glossary & Abbreviations
Y Z
Glossary-7
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