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Ive got a Netgear GS108PEv3 switch.

How can i enable / disable the POE function on a port by port basis on this switch, i couldnt find anything in the manual or by hunting around the web GUI.

screenshot of web gui on GS108PEv3 switch

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You cannot disable the POE ports in this switch.

The ports are auto-sensing,

(802.1af) they will enable PoE once the switch has discovered a signature resistance on the designated pair.

POE+ or 802.1at devices which, your switch uses. These leverage a.c impedance using a capacitor on the phantom transformer circuit to detect a POE compliant device. It then uses LLDP-MED to negotiate power levels of the device.

None of the POE versions will supply a legacy device (non POE compliant) power if it doesn't detect the signature circuitry signal of a POE standard.

If your model supports the console, you could try there. But it looks like it was left out by design.

Hope this helps.

  • Thanks, as long as its auto-sensing thats fine, i just wanted to make sure non POE devices plugged into POE ports (due to lack of port space) would be ok. – sam Feb 27 '18 at 9:10
  • "once a PoE packet request has been sent by the device connecting to it" is pretty much nonsense as a device can't send any packets before it's powered up. PoE uses MDI sensing to detect powered devices (using signature resistors). – Zac67 Feb 27 '18 at 12:16
  • Lol, that was taken from netgears answer at their support site. I didn't even notice the mix of 802.1at/lldp-med and 802.1af. thanks for the comment. I updated it – Tim_Stewart Feb 27 '18 at 20:28

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