IEEE P802.3 CV:2020 pdf download.Draft Standard for Ethernet-Amendment:Maintenance #1 5: Power over Ethernet.
145.5.7 Autoclass
Change second and third paragraph in 145.5. 7 as follows:
A PD connected to a PSE that supports Autoclass can initiate an Autoclass request, to optimize the allocated power budget, through the aLldpXdot3LocAutoclassRequest (30.12.2.1.1 8o) attribute in the oLldpXdot3LocSysternsGroup object class. This request will appear to the PSE as a change in the aLldpXdot3RemP-DAutoclassRequest (30.12.3. 1.1 Xo) attribute in the oLldpXdot3RemSystemsGroup object class. When the PD sends this request, it needs to be in a state where it consumes the amount of power that, from that moment onward, will be the maximum power drawn.
When the PSE receives the request for Autoclass, and Autoclass is enabled, it shall measure the power consumption per the requirements in 145.2.5.2. After this measurement has been completed, the PSE may update the PSEAllocatedPowerValue and follow the procedure in 145.5.5.1. The PSE also communicates the completion of the Autoclass procedure by means of the aLldpXdot3LocPSEAutoclassCompleted (30.12.2. 1 .1 Sn) attribute in the oLldpXdot3LocSystemsGroup object class. This will appear to the PD as a change in the aLldpXdot3RemPSEAutoclassCompleted (30.12.3.1.1 Sn) attribute in the oLldpXdot3LocSysternsGroup object class.IEEE P802.3 CV pdf download.