Juniper QFX5240 - Chassis Alarm Messages

FPC 0 FB Exhaust Left 40 45 65 62 70 67 75
FPC 0 FB Exhaust Right 40 45 65 62 70 67 75
You can also calculate the percentage of fan RPM, or duty cycle . Use the following command as root:
root@re0.~#i2cget -y -f 13 0x66 0x11
0x07
In this example, the system returned the hexadecimal value 0x07. If you convert that value to decimal,
you get 7. Then use this formula to calculate the duty cycle:
Duty cycle = (value returned + 1)*6.25%
In this example, duty cycle = (7 +1)*6.25 = 50%
Chassis Alarm Messages
Chassis alarms indicate a failure on the device or one of its components. Chassis alarms are preset and
cannot be modied.
Chassis alarms on QFX5240 switches have two severity levels:
• Major (red)—Indicates a crical situaon on the device that has resulted from one of the condions
described in Table 27 on page 115. A red alarm condion requires immediate acon.
• Minor (yellow)—Indicates a noncrical condion on the device that, if le unchecked, might cause an
interrupon in service or degradaon in performance. A yellow alarm condion requires monitoring
or maintenance.
Table 27 on page 115 describes the chassis alarm messages on a QFX5240.
Junos OS Evolved systems, such as QFX5240, are based on a new alarm infrastructure, which does not
support all power supplies and fan alarms. Table 27 on page 115 shows these alarms.
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