Cisco 7206VXR Configuration Guide - Page 80

Functional Overview Chapter 1 Cisco 7200 VXR Product Overview Below are sample high critical messages from chassis with 3V and 5V power supplies in Cisco IOS Release 12.0(23): Router(boot)# 00:02:47:%ENVM-2-ENVCRIT:+3.45 V measured at +3.72 Router(boot)# 00:06:51:%ENVM-2-ENVCRIT:+5.15 V measured at +5.49 Reporting Functions The Cisco 7200 VXR routers display 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. Note Also see the NPE-G2 Support for the show environment Command document for information about changes to the output of the show environment command with the NPE-G2. 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 +3.83 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. 1-62 Cisco 7200 VXR Installation and Configuration Guide OL-5013-09