ATM Configuration and Troubleshooting Guide

Conﬁguring EMS High Availability over ATM

Conﬁguring EMS HA-ATM for Local Recovery

Chapter 6 115

The LEC Selector you specify modiﬁes the last byte of the ATM address

of the ATM adapter. Each ELAN interface on an ATM adapter must have

a unique LEC Selector.

Step 9. Specify the ELAN name of the secondary ELAN.

NOTE The ELAN name is case sensitive. So, you must conﬁgure the ELAN

name in SAM exactly as it is conﬁgured in the LECS.

NOTE The primary ELAN and secondary ELAN can have the same name.

However, for ease of maintenance and troubleshooting, we recommend

that you adopt a naming convention that clearly indicates the secondary

ELAN. For example, for the ELAN “MKTG” you might want to name the

secondary ELAN “MKTG_S”. Note that this secondary ELANname must

be assigned to a secondary LES in the secondary LECS.

Step 10. Select the OK button when you are ﬁnished.

Step 11. Exit SAM.

Step 12. Go to the next section, “Conﬁguring EMS HA-ATM for the ELAN

Interfaces”.

Conﬁguring EMS HA-ATM for the ELAN Interfaces

Before you conﬁgure EMS HA-ATM for the ELAN interfaces, consider

the possibilities for secondary ELAN interfaces described below.

Secondary ELAN Interface Possibilities

You have the following possibilities when conﬁguring secondary ELAN

interfaces for High Availability: