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LOSSARY
135
LECS
LAN Emulation Configuration Server. This is the set of functions that
provides an edge device with information regarding the location of the
other LAN Emulation Services, that is LES and BUS.
LES
LAN Emulation Server provides address resolution for the LECs within
an Emulated LAN. An LES receives an IP address from its own tables or
by querying the other LECs, and returns it to the requesting LEC.
level indicator
The level indicator specifies the exact number of significant bits that are
used for the peer group ID and can range from 0 to 104.
LM
Local management of a network device via a connected terminal.
Local Management
Application (LMA)
menu system
The LMA menu system is a set of command menus organized in a
hierarchic, top-down fashion. Each command menu contains a
numbered list of menu items. Each menu item has a three-letter
mnemonic identifier and a short description of the item. There are two
kinds of menu items: commands that display another, lower-level,
command menu (
submenu
) and commands that perform a specific
administrative task.
logical group nodes
A logical group node that represents a lower level peer group as a
single point for purposes of operating at one level of the PNNI routing
hierarchy.
logical link
An abstract representation of the connectivity between two logical
nodes. This includes individual physical links, individual virtual path
connections, and parallel physical links and/or virtual path connections.
logical node
An abstract representation of a peer group or a switching system as a
single point.
logical uplink
Any link between the lowest level hierarchy and the upper levels of
hierarchy.
LOS
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 PHY layer.
LUNI
LAN Emulation User to Network Interface. The standardized interface
between a LE client and a LE server (LES, LECS and BUS).