LAN Emulation Operation 2-9
LAN Emulation Operation
This section describes the simplified operation of a LEC in a LAN
emulation configuration. LEC operation is d efined by the protocols of
the LAN Emulation User-Network Interface (LUNI).
LUNI protocol defines each stage of operation for a LEC. The major
stages of operation, defined in this section, are:
■Initialization
■LECS Connection
■Configuration
■Joining
■BUS Connection
■Data Movement
Initialization In the initial state, the LEC configuration is initialized from nonvolatile
storage or set to default values.
The next stage of LEC operation depends on t he LANE configuration
mode of the LEC:
■Manual configuration mode — The LEC proceeds directly to the
Joining stage and uses a locally configured LES ATM address.
■Automatic configuration mode — The LEC proceeds to the LECS
Connection stage and attempts to contact the LECS to obtain its
configuration, including ELAN/LES assignm ent.