Operation Manual

ATM Administration
54
On the other hand, new devices must follow the algorithm shown on the
following page. That is, ports configured for MAC address assignment
through the LECS cannot join ELANs. This prevents a device intended
to support MAC address assignment from accidentally joining the wrong
ELAN.
4. All ELANs are configured and operational when, suddenly, the LES
connection is terminated. All communications with other ATM clients
ceases (per LAN Emulation Specification 1.0) but local switching for the
ELAN continues. Since the LECS connection is still active, ELAN
assignment continues through the LECS if it is has been configured.
The algorithm for the determination of ELAN membership can be illustrated
in the flow diagram termed “ELAN Membership Algorithm for a New
Device” on page 55. This algorithm be applied to all configurations.