Identifying the Problem D-9
Both Devices Must be AAL5 Compliant
The ATM Module is compatible with AAL5 ATM
devices. If the ATM Switch connected to the ATM
Module does not support AAL5, you will not be able
to get the two devices to communicate. Re-configure
your network to ensure that the ATM devices are
compatible.
Is ILMI Turned On?
Some devices enab le you to turn the Interim Local
Management Interface (ILMI) on and off. ILMI on the
ATM Module is set to ON and cannot be configured
through the local management screens.
Check the user guides that accompany your ATM
Switch, to see if you can configure ILMI, and check to
see if it is turned on.
Is ILMI turned on at the ATM Switch?
Yes — go to Step 15.
No — go to Step 14.
Turn ILM I O n
Turn ILMI on at the ATM Switch. Refer to the user
guide that accompanies your ATM Switch.
Access the ATM Module Configuration Screen
From the Main Menu select the ATM CONFIGURATION
option. An example of the ATM Module Configuration
screen is shown in Figure D-6.
Figure D-6 ATM Module Configuration Screen
Is Signalling Compatible?
Signalling must be the same on both devices, and
must be either 3.0 or 3.1. The default on the ATM
Module is 3.1.
Is the Signalling compa tible?
Yes — go to 18.
No — go to 17.
Make Signalling Compatible
Ensure that the Signalling mode is the same on the
ATM Module and the ATM Switch.