Symptom
Dual power supplies can only provide half the POE budget：
Cat9300#sh env all
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-715WAC DCA2120G1CZ OK Good Good 715
1B PWR-C1-715WAC DCB1723G2SA OK Good Good 715
Cat9300#sh power inline
Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 472 0.0 472 <<<<< should be 1187
Reload or power cycle the switches do not help and the issue still remains.
Conditions
Seen on some Cat9300 series switches running 17.9.1 or earlier
Workaround
Configure stack-power "standalone" and "no standalone" config on the switch：
config t
stack-power switch
standalone
end
config t
stack-power switch
no standalone
end
This is a one-time problem and once we have recovered via the workaround, then the switch is not expected see the problem again.
Further Problem Description
