Before you configure an ATM interface, verify that you have installed the physical module (such as an OC3 module) correctly. For more information about preconfiguration procedures, see the ERX Hardware Guide or the E120 and E320 Hardware Guide.
Also have the following information available:
For more information about specifying ATM interfaces and subinterfaces on E-series routers, see Interface Types and Specifiers.
You can configure the following types of dynamic interfaces over ATM:
For information about creating these dynamic configurations, see Configuring Dynamic Interfaces.