Cisco Systems CISCO7201 Manual De Usuario

The Cisco 7201 router displays warning messages on the console if chassis interface-monitored 
parameters exceed a desired threshold. You can also retrieve and display environmental status reports 
with the show environment, show environment all, show environment last, and show environment 
table commands. Parameters are measured and reporting functions are updated every

 

60 seconds. A brief description of each of these commands follows. 

To prevent overheating the chassis, ensure that your system is drawing cool inlet air. Overtemperature 
conditions can occur if the system is drawing in the exhaust air of other equipment. Ensure adequate 
clearance around the sides of the chassis so that cooling air can flow through the chassis interior 
unimpeded and exhaust air exits the chassis and is not drawn into the inlet vent of another device.

The show environment command displays reports of the current environmental system status. The 
report displays parameters that are out of the normal values. No parameters are displayed if the system 
status is normal. The example that follows shows the display for a system in which all monitored 
parameters are within normal range:

Router# show environment 
 
All measured values are normal

If the environmental status is not normal, the system reports the worst-case status level. Following is a 
sample overvoltage warning:

Router# show environment

Warning:+3.45 V measured at +3.27 V

 

The show environment last command retrieves and displays the NVRAM log, which shows the reason 
for the last system shutdown (if the shutdown was related to voltage or temperature) and the 
environmental status at that time. Air temperature is measured and displayed, and the DC voltage 
supplied by the power supply is also displayed. 

Following is sample output of the show environment last command:

Router# show environment last

  NPE Inlet          previously measured at 28C/82F

  NPE Outlet         previously measured at 30C/86F

  CPU Die            previously measured at 42C/107F

  +3.30 V            previously measured at +3.24

  +1.50 V            previously measured at +1.48

  +2.50 V            previously measured at +2.46

  +5.15 V            previously measured at +4.96

  +1.20 V            previously measured at +1.17

  VDD_CPU            previously measured at +1.25

  -11.95             previously measured at -12.04

  VTT                previously measured at +1.23

  last shutdown reason - power supply shutdown 7201_creg6#

The show environment table command displays the temperature and voltage thresholds for each 
temperature sensor and for each monitored status level. These thresholds are related to those listed in 

 and 

. The display also lists the shutdown threshold for the system.