Cannot reach maximum power per port, all ports used,

[kevinrandomguy]

We are using the C1300-16FP-2g with a PoE+ device.  We have control to a degree of how much power each device can draw.  When we push each port over 13W, closer to 13.5-14W the switch will begin to shed ports (turn them off).  At 204W we are about 85% of the 240W available as reported by the switch.

We've set a lot of different settings on this switch.  Threshold is not on and I don't see any indication that there is some obscure limit per port.  Any idea what is happening and how to address it?

[Flavio Miranda]

@kevinrandomguy 

240W is the maximum supported and this must include the switch itself. This is not accounted only for PoE.

[kevinrandomguy]

According to Cisco's datasheet the 240W plate advertised is the PoE budget.  I do understand that many switches will lump that in with total power used (device included).  The name plate power for this switch is about 275W.

[Flavio Miranda]

@kevinrandomguy 

 You are right. You should be able to get 15W per port.

C1300-16FP-2G

110V=20.6W 220V=22.1W

110V=281.9W 220V=275.2W

961.3

110V=12.6W 220V=13.6W