Operations Manual
111
Components of LANE
LANE has been subdivided into four major components, each of which will be
discussed:
1.
LAN Emulation Client (LEC)
2.
LAN Emulation Services
— Lan Emulation Server (LES)
— Broadcast and Unknown Server (BUS)
— Lan Emulation Configuration Server (LECS)
The components of an Emulated LAN network include Clients (e.g., ATM
workstations and ATM bridges) and the components of the LAN Emulation
Services. Since your switch is a Lan Emulation Client, it interacts with the
three components of the LAN Emulation Services (which physically reside
elsewhere in the network — either in an ATM End System workstation or at
the ATM switch).
LAN Emulation
Client (LEC)
LEC performs address resolution, data forwarding and other control
functions. It does this by providing a MAC level emulated 802.3 or 802.5
interface to higher level software such as bridging functions. LEC
implements the LANE User-Network Interface (LUNI) with other entities
within the Emulated LAN.
In short, LEC software runs on ATM End Stations and makes them appear to
be Ethernet stations on the network.
Control
VCC
Broadcast and
Unknown Server
Data Direct
