LAN Emulation Components 2-3
LAN Emulation Components
This section identifies:
■General LANE Components
■ATM Backbone SwitchModule LANE C omponents
General LANE
Components
The major components of ATM LAN emulation are identified in
Figure 2-3.
Figure2- 3 General LAN Emulation Components
Each of the major LAN emulation components are defined here.
LAN Emulation Client (LEC)
The LAN Emulation Client is the entity in an end system that performs
data forwarding, address resolution, and other control functions for a
single end-system within a single ELAN. Each LEC is identified by a
unique ATM address and is assigned to an ELAN in the ATM network.
LAN Emulation Configuration Server (LECS)
The LAN Emulation Configuration Server assi gns individual LECs to a
particular emulated LAN (ELAN) by directing them to the LAN emulation
server that corresponds to the ELAN.
LAN Emulation Server (LES)
The LAN Emulation Server implements the control functions for a
particular ELAN. There is only one logical LES for each ELAN. A LEC that
belongs to a particular ELAN is controlled by the LES for the ELAN.
LAN Emulation
Configuration Server (LECS)
ATM
network
LAN Emulation
Server (LES)
Broadcast and Unknown
Server (BUS)
Legacy LANs LAN emulation
bridge with one
or more LAN
emulation
clients (LECs) LAN Emulation
Client (LEC)