OAK-D Pro PoE Link Speed Negotiation

paulmurphy

We're attempting to integrate the OAK-D Pro PoE into a new product and running into some challenges consistently negotiating a 1 Gbps connection.

We find that our units consistently negotiate a 1 Gbps connection when connected to a PC over a short cable length, but over our longer cable lengths, we variably negotiate either a 100 Mbps or 1 Gbps connection.

When we are able to negotiate a 1 Gbps connection over a longer cable, the oak bandwidth test script measures approximately 900 Mbps download and 220 Mbps upload.

Is it possible to alter the link negotiation parameters on the OAK such that it more consistently negotiations a 1 Gbps connection, even if the actual achievable bandwidth is restricted?

Best,

Paul

erik

Hi @paulmurphy ,
This is a few layers below depthai firmware, IIRC it's layer 2:

So it wouldn't be possible to do anything from firmware perspective. I'd suggest using repeaters or shorter cables to consistently achieve 1gbps (or perhaps better cables / better networking equipment).
Thanks, Erik

paulmurphy

erik Ok, thanks Erik. We'll see how we can reduce loss on the cable.