Cisco Catalyst 9400

CHAPTER 5
Environmental Monitoring and Power
Management
• About Environmental Monitoring, on page 221
• Power Management , on page 227
• Configuration Examples for Power Supply Modes and Operating States, on page 240
• Feature History for Environmental Monitoring and Power Management, on page 248
About Environmental Monitoring
Environmental monitoring of chassis components provides early warning indications of possible component
failure. This warning helps you to ensure the safe and reliable operation of your system and avoid network
interruptions.
This section describes how to monitor critical system components so that you can identify and rapidly correct
hardware-related problems.
Using CLI Commands to Monitor your Environment
Enter the show environment [all | counters | history | location | sensor | status | summary | table] command
to display system status information. Keyword descriptions are listed in the following table.
Table 19: Keyword Descriptions
PurposeKeyword
Displays a detailed listing of all the environmental
monitor parameters (for example, the power supplies,
temperature readings, voltage readings, and so on).
This is the default.
all
Displays operational counters.counters
Displays the sensor state change history.history
Displays sensors by location.location
Displays the sensor summary.sensor
System Management Configuration Guide, Cisco IOS XE Bengaluru 17.4.x (Catalyst 9400 Switches)
221