Hardware Alarms
Hardware alarms on the vEdge 1000 router are predefined and are triggered by a physical condition on the
router such as a power supply failure, excessive component temperature, or fan failure. The vEdge 1000 router
triggers the following types of hardware alarms:
• Main board temperature alarm—The main board of the router has four temperature sensing points (board
sensor 1 through 4). If the temperature of the sensor location crosses the predefined threshold level, the
system triggers an alarm.
• CPU and DRAM temperature alarm—If the temperature of the system CPU or of the DRAM module
crosses the predefined threshold level, the system triggers an alarm.
• Fan alarm—The router has fixed built-in fans for system cooling which run at a fixed speed. If a fan
stops running, the system triggers an alarm. Also if a fan starts to run below a predefined RPM threshold,
the system triggers an alarm.
• Power supply alarm—The router has two power adapter inputs for redundancy reasons. If one of the
power adapters is not plugged in or there is a failure on a power adapter input, the system triggers an
alarm.
Table 1 lists the yellow and red alarm threshold for the six temperature sensing points in the system—four
board sensors spread across the board, 1 CPU junction temperature sensor, and 1 DRAM temperature sensor).
The lower threshold value (Bad Fan) applies if a fan failure condition is also detected; otherwise, the higher
threshold value applies (normal).
Table 49:
Red Alarm(degrees
C)
Yellow Alarm(degrees
C)
Item
Bad FanNormalBad FanNormal
75806065Chassis board sensor1
75806065Chassis board sensor2
75806065Chassis board sensor3
75806065Chassis board sensor4
951008085CPU junction
temperature
75806065DRAM DIMM
Checking Alarms and Notifications
To view the current chassis environment condition , enter the show hardware environment command at
the system prompt. The system displays the power supply status, temperature sensor readings, fan speed, and
related alarm status if any exists.
To view the severity of active alarms, enter the show hardware alarms command at the system prompt. The
system displays the alarm severity and a brief description of the cause of each active alarm.
Hardware Installation Guide for vEdge Routers
151
vEdge 1000 Router
Maintenance and Troubleshooting
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