Basic ATM System Configuration

LECS - LAN Emulation Configuration Server: Enterprise level configuration
LES - LAN Emulation Server: MAC to ATM address resolution for unicast traffic
BUS - Broadcast/Unknown Server: forwards multicast, broadcast and unknown unicast traffic
LEC - LAN Emulation Client services
LANE - LAN Emulation: the collective function of LECS, LES, BUS
ELAN - Emulated LAN