Before You Configure ATM

Before you configure an ATM interface, verify that you have installed the physical module (such as an OC3 module) correctly. For more information on preconfiguration procedures, see the ERX Installation and User Guide.

You should also have the following information available:

• Slot and port numbers of the modules over which you want to create ATM interfaces
• Subinterface numbers for each logical interface you want to create
• Virtual path and channel numbers for each virtual circuit you want
  to create
• IP addresses and subnet mask assignments for IP interfaces

Note: You can configure four types of dynamic interfaces for ATM 1483 interfaces: IP over ATM, IP over PPP over ATM, IP over PPPoE over ATM, and IP over bridged Ethernet over ATM. For information, see Chapter 13, Configuring Dynamic Interfaces.