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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 defined 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 the 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 assignment.