Avaya M770 Manual Do Utilizador

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Chapter 2
Getting Started
16
Avaya M770 ATM Switch User’s Guide
Setting up LAN Emulation
Each module in the Avaya M770 ATM Switch can host one LECS and multiple 
combined LES and BUS. This means that on one switch, there can be several 
resilient LECS, and for one ELAN, several distributed LES. The Avaya M770 ATM 
Switch LES does not have to reside in the same device as the LECS. The module that 
is elected as the Master will host the Management LEC.
The following steps should be performed for each M770 ATM Switch module to 
ensure correct LANE configuration:
1
Determine what type of LECS is to be hosted on this module (local or remote).
By default the module is configured to seek a remote LECS at WKA (Well-
Known Address).
For information about the different types of LECS that can be hosted on the 
M770 ATM Switch, see Chapter 14, Managing the LECS.
2
If you are using resilient LECS, configure one of the LECS to have the highest 
priority.
For information about changing a LECS priority on the M770 ATM Switch, see 
Chapter 14, Managing the LECS.
3
If the M770 ATM Switch is to host a local LECS then you will need to consider 
the ELANs that the LECS will coordinate.
Note:  
To ensure that a standby LECS can smoothly take over the running of the 
network, should the active elected LECS fail, it must be configured with the same 
LANE services information as the active elected LECS.
There is no checking of database consistency between modules that are hosting the 
resilient LECS. 
4
Determine what ELANs this switch will host and create LESes to host the 
required ELANs.
For information about configuring local ELANs, see Chapter 16 Managing an 
ELAN.
For information about configuring the local LES, see Chapter 15 Managing the 
LES/BUS.
— By default the M770 ATM Switch hosts the following default ELANs:
ELAN name
ELAN LES name
Default Ethernet ELAN
default
default