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