3-6
Cisco 7201 Installation and Configuration Guide
OL-11364-04
Chapter 3 Starting and Configuring the Router
Functional Overview
Reporting Functions
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.
Caution
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
W3.45 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
Table 3-1
and
Table 3-2
. The display also lists the shutdown threshold for the system.
