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Do openlldp support type 3 ,4 and class 6 7 #99

Closed mmuazzam closed 4 months ago

mmuazzam commented 8 months ago

Hi , I want to know does openlldp support type 3 & 4 and class 6 & 7. lldpd package has no support for 802.3bt, where we get power of 51watt from PSE device. So does this openlldp has capability to get 51watt power from PSE device.

apconole commented 8 months ago

It's possible that your device will be supported - for 802.3 TLV support, we understand types 1-4 but the actual negotiation of class support is done by the devices IIRC. You'd simply enable the power via mdi, link aggregation, and max frame size negotiations. This can be done via setting the following TLVs to 'yes':

macPhyCfg powerMdi linkAgg MTU

penguin359 commented 8 months ago

It sounds like he is asking if we support PoE++ as specified in the IEEE 802.3bt amendment. That added power types 3-4 and classes 6-7 to the PoE specification for Ethernet. From what I understand, PoE++ can use either PD signatures at layer 1 or LLDP at layer 2 to negotiate power requirements, but I am not very up on the PoE specifications myself. I would expect it would require close with the NIC and I am not aware of a standard API on Linux to do that. As far as I know, PoE is normally handled in the hardware and/or driver for a NIC if it supports it.