Switching Module Features - Cisco AJ732A - MDS 9134 Fabric Switch Installation Manual

Chapter 1 Product Overview
Switching Modules

Switching Module Features

Each switching module draws its power from the 42 V supplied on the backplane with local DC/DC
power converters and regulators.
The control processor on the switching module provides power-on, offline, and online diagnostics. The
control processor can be used to configure devices on the switching module and to gather statistical data
from each port.
The control processor can determine which slot it is plugged into, and it can monitor its DC/DC power
source and temperature. The control processor signals the supervisor module and displays an alarm on
its front panel when a problem is detected.
The front panel on the switching module provides basic status information, such as power-on, self-test
running, self-test passed, alarm, and ready.
The binary image for the switching module is downloaded from the supervisor module. Prior to the
image download, the control processor on the switching module runs from code stored on its local
CompactFlash card.
Routine software downloads are not required.
Note
The integrated supervisor module can force a reset on the switching module and controls whether power
is applied to the switching module.
If a single component or a set of components on the switching module fails, this does not disable other
switching modules if that is the only failure in the system.
Each switching module has a hardware watchdog timer to detect most component failures. The watchdog
timer resets the card if it is not serviced periodically.
Cisco MDS 9200 Series Hardware Installation Guide
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