Figure 36 – Brocade Communications Systems Brocade MLX Series and Brocade Netlron XMR 53-1002373-02 User Manual

Page 74

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56

Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide

53-1002373-02

Router modules

1

FIGURE 36

Rear fan locations for Brocade MLXe 32-slot routers

At startup, the fans operate at high speed. After a period of time, the management module
changes the fan speed to low.

By default, the router polls the temperature sensor on each module every 60 seconds for a
temperature reading. Depending on the results, the router will:

Leave the fan speed as is

Increase the fan speed

Decrease the fan speed

Shut down a module to prevent damage

If the temperature of a module exceeds specified high temperature thresholds, the system
generates a Syslog message and SNMP trap. The system can also shut down the module if the
temperature exceeds the highest threshold.

You can change default low and high temperature thresholds for modules and fan speeds. Refer to

“Changing temperature thresholds for modules and fan speeds”

on page 331.

1 - 10

Fan modules 1 - 10, numbered as labeled

2

1

4

3

6

5

8

7

10

9

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