Chapter 2 GettingStarted
Avaya M770 ATM Switch User’s Guide 17
Note: Ensure that the number of modules hosting a specific LES/BUS (e.g. default)
does not exceed the maximum number of LESes per ELAN as defined in:
lan elan maxles (default 5, maximum 10).
5 Determine if secure “Closed” ELANs are required. If required then you will
need to set-up an ELAN client database in the Avaya M770.
For information about setting up ELAN clients, see Chapter 16 Managing ELAN
Clients.
— By default when ELANs are created they are set-up as “Open” ELANs.
Recommended Redundant LANE Services Setup
You have the ability to setup redundant LANE services on every module. On each
M770 ATM switch that contains N modules, you have the flexibility to configure N
resilient LECS hosting ELANs that can be redundant N times. LANE redundancy is
not just switch wide, but network wide. Each module in every switch can host
redundant LANE services. We do not recommend that you place redundant LANE
services on every module. In the event that you want to investigate where clients are
registered and to look at the LECS, you need to look at every module in his network.
The Cajun LaneMaster application helps you configure your redundant LANE
services. To help you decide where to put the LANE services and to minimize
configuration time, we recommend the following:
Example for LANE Configuration
The default LANE configuration of the Avaya M770 ATM Switch:
LECS: Setup 2 resilient LECS on two different switches. One of the LECS
should have a higher priority than the other.
LES: Setup 5 distributed LESs for each ELAN. Configure each LES on a
separate switch and if there are less than 5 switches, configure a LES
on multiple modules in each switch.
ELAN: Ethernet ELAN named default
LES/BUS: Ethernet LES named default
LECS: Remote at the well known address (wka)
LEC: Configured to join the Ethernet ELAN default