Based on official D-link MIB. Generic device data, not all figures available though (can't find CPU / RAM usage, probably it was removed by vendor).

Auto-discovery for main Network and PoE data.

There is other data that can be fetched from switch, but I think present figures are enough to monitor device.

Needed value mappings:

D-link switch port PoE priority

1 ⇒ low

2 ⇒ normal

3 ⇒ high

D-link switch port PoE state

1 ⇒ enable

2 ⇒ disable

PS

D-link has done some really weird stuff with PoE values - all string type. Even pure digital values like Watts, Ampers and Volts.