For example, on the 3845 series, there are additional features, such as the multiple temperature sources and alert thresholds, that can be configured.
Fan 1 Normal Fan 2 Normal Fan 3 Normal Fan Speed is Normal Alert settings: Intake temperature warning: Enabled, Threshold: 55 Core temperature warning: Enabled, Threshold: 70 (CPU: 90) Board Temperature: Normal Internal-ambient temperature = 35, Normal CPU temperature = 46, Normal Intake temperature = 27, Normal Backplane temperature = 24, Normal Voltage 1(3300) is Normal, Current voltage = 3300 mV Voltage 2(5150) is Normal, Current voltage = 5153 mV Voltage 3(2500) is Normal, Current voltage = 2501 mV Voltage 4(1200) is Normal, Current voltage = 1203 mV Nominal frequency Router#ĭisplay from a 2960 Switch switch# show environment ? all Show all environment status fan Show fan status power Show power supply status rps Show RPS status temperature Show temperature status switch# show environment all FAN is OK TEMPERATURE is OK POWER is OK RPS is NOT PRESENT switch#Īlso, as you can see, the functionality of the Show Environment command varies from one hardware platform to another.
Fan status: Normal Input Voltage status: Normal DC Output Voltage status: Normal Type: AC Thermal status: Normal AUX(-48V) PS1 is absent. Fan status: Normal Input Voltage status: Normal DC Output Voltage status: Normal Type: AC Thermal status: Normal SYS PS2 is present. Let’s look at three examples of the Show Environment command and how it displays information based on different routers and switches.ĭisplay from a 3845 router: Router# show environment SYS PS1 is present. Have you ever entered a computer room and the temperature was so hot that it felt like an oven? Well, with one swift command you can display temperature and fan status and internal temperatures of your routers. I should also point out that the options for this command vary based on the hardware that it is running on. You can view the status of your router fans, power supply, system board temperature, and more. Here are the options available for the Show Environment command: show environment Īs you can see, this command has a number of options. You will need to accesss this command in global Exec mode. The Show Environment command can be very helpful to alert you of potential hardware issues. How do you know if your remote router and switches are being cooled properly? Are the fans working? David Davis tells you how to see the environmental status of your Cisco routers and switches and how to be alerted when there is a hardware problem. Monitor Cisco routers and switches using the IOS environment command
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