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CHAPTER
7-1
Cisco 819 Series Integrated Services Routers Software Configuration Guide
OL-23590-02
7
Environmental and Power Management
The Cisco 819 integrated services routers are equipped with sensors in the router body for monitoring
the environment temperature and logging the temperature every 30 seconds.There are four sensors
located on the four corners of the router chassis. There is an additonal System Ambient sensor and a 3G
sensor.
The corner sensors display the following message:
• Error message on the console—When the temperature ranges are outside the set temperature
thresholds, the monitor displays an error message. Different temperature ranges are set for different
SKUs of the router:
–
Cisco 819G (non-hardened): 0 to 60 degrees celcius
–
Cisco 819HG (hardened): –25 to 75 degrees celcius
• SNMP Traps—syslog messages are created when the temperature is outside the specified range.
• Server “call home” feature—The server callhome feature is already enabled to call Cisco TAC in the
event of very high or low temperatures.
In addition to the corner sensors, the System Ambient and 3G sensors also log the temperature every 30
seconds onto bootflash memory.
Any time the temperature is above the high threshold, or lower than the low threshold, the temperature
information will be saved in non-volatile memory region and is also displayed as part of this output.
Use the show environment command to check the temperature of the router. You can also use this
command to display the power usage and the power consumption of the unit at the end.
The following is a sample output for the show environment command:
router# show environment
SYSTEM WATTAGE
===============
Board Power consumption is: 4.851 W
Power Supply Loss: 1.149 W
Total System Power consumption is: 6.000 W
REAL TIME CLOCK BATTERY STATUS
==============================
Battery OK (checked at power up)
TEMPERATURE STATUS
==================
Sensor Current High/Low
Name Temperature Status Threshold
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