Chapter 5 Maintaining the Cisco uBR7225VXR Router
Environmental Monitoring and Reporting Functions
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 other devices.
The show environment command display reports the current environmental status of the system. 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
Router# show environment
Warning: +3.45 V measured at +3.83 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 for a Cisco uBR7225VXR router:
Router# show environment last
NPE Inlet previously measured at 26C/78F NPE Outlet previously measured at 29C/84F MP NPE Inlet previously measured at 24C/75F MP NPE previously measured at 30C/86F
MP LC Inlet previously measured at 27C/80F MP LC previously measured at 30C/86F
CPU Die previously measured at 45C/113F +3.30 V previously measured at +3.28 +1.50 V previously measured at +1.49 +2.50 V previously measured at +2.48 +1.80 V previously measured at +1.78 +1.20 V previously measured at +1.19 VDD_CPU previously measured at +1.27 VDD_MEM previously measured at +2.48 VTT previously measured at +1.24
+3.45 V previously measured at +3.49
+3.45 | V(MP NPE) previously measured | at +3.56 | |||||
+5.15 | V(MP NPE) previously measured | at +5.27 | |||||
+12 | V(MP NPE) previously measured at +11.81 | ||||||
V(MP NPE) previously measured at | |||||||
+5.15 | V(MP LC) previously measured at +5.27 | ||||||
+12 | V(MP LC) previously measured at | +11.81 |
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| last shutdown reason - power supply | shutdown | |||
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| Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide | ||||
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