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Brocade MLX Series and Brocade NetIron XMR Hardware ...

Brocade MLX Series and Brocade NetIron XMR Hardware ...

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1Router modulesFIGURE 41Rear fan locations for <strong>Brocade</strong> <strong>MLX</strong> <strong>and</strong> <strong>Brocade</strong> <strong>NetIron</strong> <strong>XMR</strong> 32-slot routers214365871091 - 10 Fan modules 1 - 10, numbered as labeledAt startup, the fans operate at high speed. After a period of time, the management modulechanges the fan speed to low.By default, the router polls the temperature sensor on each module every 60 seconds for atemperature 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 damageIf the temperature of a module exceeds specified high temperature thresholds, the systemgenerates a Syslog message <strong>and</strong> SNMP trap. The system can also shut down the module if thetemperature exceeds the highest threshold.You can change default low <strong>and</strong> high temperature thresholds for modules <strong>and</strong> fan speeds. Refer to“Changing temperature thresholds for modules <strong>and</strong> fan speeds” on page 331.60 <strong>Brocade</strong> <strong>MLX</strong> <strong>Series</strong> <strong>and</strong> <strong>Brocade</strong> <strong>NetIron</strong> <strong>XMR</strong> <strong>Hardware</strong> Installation Guide53-1002373-02

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