My problem is the following.
A switch Cisco Catalyst 3560 of one of our customers, model WS-C3560G-24PS-S, have three ports (3, 4 and 6) that don't give PoE. The other ports work fine.
I've reviewed power inline parameters, and where I run debug of power inline events, at the connect IP Phone the ports don't show neither activity, but if I connect the IP Phone to a port other than 3,4 or 6 ports, this power on.
I'm attaching de show tech of this switch.
Thanks in advance for the help,