| |
|
L |
| L2F |
 |
Layer 2 Forwarding
|
| L2TP |
|
Layer 2 Tunnelling Protocol |
| LAC |
|
L2TP Access Concentrator |
| LAM |
|
Lobe Access Module, Terminals connect to a LAM, which
is connected to a CAU. |
| LAN |
|
Local Area Network, An assembly of computing resources
such as PCs, printers, minicomputers and mainframes
linked by a common transmission medium such as coaxial
cable. |
| LAP |
|
Link
Access Procedure. |
| LAPB |
|
Link Access Procedure, Balanced. |
| LAPD |
|
Link Access Protocol in the D-channel |
| LAPV5-DL |
|
Link Access Protocol V5-Datalink Layer |
| LAPV5-EF |
|
Link Access Protocol V5-Envelope Function |
| LAT |
|
Local Area Transport, a protocol developed by Digital
Equipment Corporation based upon the idea of a relatively
small, known number of hosts on a local network sending
small network packets at regular intervals. LAT will
not work on a wide area network scale, as TCP/IP does. |
| LATA |
|
Local
Access Transport Area, a telephone company term that
defines a geographic area; sometimes corresponds
to an area code. |
| Layer |
|
A level of the OSI Reference Model. Each layer performs
certain tasks to move the information from sender to
receiver. Protocols within the layers define the tasks
for networks, but not how the software accomplishes
the tasks. Interfaces pass information between the
layers they connect. |
| LBR |
|
Low Bit Rate |
| LCP |
|
Link
Control Protocol |
| Leased
line |
|
A
transmission line reserved by a communications carrier
for the private use of a customer. |
| LEC |
|
Local
Exchange Carrier, Local phone company. |
| LED |
|
Light
Emitting Diode |
| |
|
|
| LES |
|
Loop
Emulation Service |
| LET |
|
Local
Exchange Terminal |
| LEX |
|
Local
Exchange |
| LI |
|
Length
Indicator |
| Line
Speed |
|
Expressed
in bps, the maximum rate at which data can reliably
be transmitted over a line using given hardware. |
| Link |
|
Physical
connection between two nodes in a network. It can consist
of a data communication circuit or a direct channel
(cable) connection. |
| LLC |
|
Logical
Link Control; Link Layer Control, upper part of ISO
layer two. |
| LLC/SNAP |
|
Logical
Link Control/SubNetwork Access Protocol |
| LLC2 |
|
Logical
Link Control Type2 |
| LMDS |
|
Local
Multipoint Distribution System; is the broadband wireless
technology used to deliver voice, data, Internet, and
video services in the 25-GHz and higher spectrum (depending
on licensing). |
| LMI |
|
Local
Management Interface |
| LNI |
|
Local
Network Interconnect, a Port Multiplier, or concentrator
supporting multiple active devices or communications
controllers, either used standalone or attached to
standard Ethernet cable. |
| LNS |
|
L2TP
Network Server |
| Load
balancing |
|
In
routing, the ability of the router to distribute traffic
over all its network ports that
are the same distance from the destination address.
It increases the use of network segments, which increases
effective network bandwidth. |
| Local
loop |
|
The
line from a telephone customer's premises to the telephone
company CO (central office). |
| Local
Talk |
|
Apple
Computer's proprietary 230 Kbps baseband network protocol.
It uses the CSMA/CD access method
over unshielded twisted pair wire. |
| Logical
Link |
|
A
temporary connection between source and destination
nodes, or between two processes on the same node. |
| Logical
ring |
|
Network
which is treated logically as a ring even though it
may be cabled as a physical star topology. |
| |
|
|
| LPD |
|
Line Printer Daemon, a process on Berkeley spooler
implementations that provides LPR support. |
| LPR |
|
The
LPR command is used to queue print jobs on Berkeley
queuing systems. |
| LPF |
|
Low
Pass Filter |
| LSA |
|
Link
State Algorithm |
| LT |
|
Line
Termination |
| LTU |
|
Line
Terminal Unit |
| LU |
|
Logical
Unit, one end of a communication session in an SNA
network. LU 6.2 provides peer-to-peer communications
over an SNA network. |
| LVG |
|
Loop
Voice Gateway |
| |
|
|
