Extreme Networks BlackDiamond 6800 Installation And User Manual page 19

About the ATM Module
The ATM module has the following key components:
• Two high-performance network processors
• A General Purpose Processor (GPP) subsystem
The network processors are programmable devices that participate with the Extreme "i"
chipset to support expanded functionality, features, and flexibility.
The GPP subsystem handles system control and I/O module management functions.
The GPP subsystem resides outside of the I/O module data path to optimize
performance.
ATM Module LED Indicators
The ATM module is equipped with two module-level LED indicators (STATUS and
DIAG) and one port-level LED indicator for each network interface port on the ATM
module (see Figure 1-2).
The STATUS LED indicator is located near the top end of the ATM module front panel,
near the ejector/injector handle. This LED indicator is a bi-color LED (displaying in
either green or amber) that signals the operating status of the module as a whole.
The DIAG LED indicator is located beside the STATUS LED. This LED is a single-color
LED (displaying in amber only) that flashes amber when diagnostics are running on the
module, and is solid amber if the module fails the diagnostics.
The port-level LED is an LED next to the port number identifying each fiber optic
network interface connector on the front panel of the module. The port LED is a bi-color
LED (displaying in either green or amber) that signals the operating status of that
network interface port.
For more information on ATM module LED states and their use in troubleshooting
ATM module problems, see "Verifying the Module Installation" on page 2-10.
Service Ports
The ATM module is equipped with two front-panel service ports: one port is a DB-9
connector; the other is a micro HD-15 connector (see Figure 1-2). Both ports are reserved
for use only by Extreme Networks technical support personnel for diagnostic purposes.
Asynchronous Transfer Mode (ATM) Module Installation and User Guide 1-5