LANE Server. A LES is a process residing in an ATM system that provides the control functions necessary for an emulated LAN, or LANE service. LES may be implemented in an ATM- attached server, router, or switch, and may be centralized or distributed throughout the network. A LES registers and resolves MAC addresses to ATM addresses. When a LEC joins an emulated LAN, it registers its LAN destination with the LES, mapping its MAC address to its ATM address