Symptom
When there is PSU inserted into Cat3850/Cat3650/Cat9300 switch that does not have power cable connected to a power source the incorrect PSU information is shown in the show environment power all output
Conditions
Cat3850/Cat3650/Cat9300 switch
PSU inserted into the switch
Power cable not connected to power source
Workaround
connect the PSU to a working power source if the PSU needs to be installed in the switch
remove the PSU from the switch if it is not needed
Further Problem Description
The sample output showing incorrect information for PSU bay B of switch 4
Cat3850#show environment power all
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A Not Present
1B PWR-C1-715WAC LIT172xxxxx OK Good Good 715
2A Not Present
2B PWR-C1-715WAC DCB183xxxxx OK Good Good 715
3A PWR-C1-715WAC LIT193xxxxx OK Good Good 715
3B Not Present
4A Not Present
4B Unknown Unknown No Input Power Bad Bad 235