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3-1
Chapter 3
ATM Configuration
Viewing connection data; configuring Permanent Virtual Circuits (PVCs); adding and deleting
connection entries
The ATM interfaces provided by the 9A128-01 module provides the connectivity
that allows you to merge ATM network segments with traditional LAN
technologies via the FDDI FNB backplane. Current versions of 9A128-01 firmware
use 802.3 VC-based multiplexing for bridging protocols to move PVC traffic
between the ATM front panel connection and the switching backplane, and
support ATM Forum LAN Emulation; future versions will add support for
Cabletron’s SecureFast Switching.
An ATM network uses two types of virtual channels, or circuits: Switched Virtual
Circuits, or SVCs, and Permanent Virtual Circuits, or PVCs. SVCs are created and
dismantled dynamically on an as-needed basis, and require no management
definition; PVCs, however, must be manually configured. The Current ATM
Connections window provides the means for accomplishing these configurations.
Accessing the ATM Connections Window
To access the ATM Connections window from the Module View:
1. Click on Device on the Module View menu bar to access the Device menu.
2. Drag down to ATM Connections..., and release. The Current ATM
Connections window, Figure 3-1, will appear.
NOTE
For current firmware versions available for the 9A128-01, you can only view current
connections; you will not be allowed to add new connections or modify existing
connections.