OK
I ran some test with several switches and I can confirm that the pine64 has an issue with 1000 Gb/s.
I tried different configuration and the pine 64 Ethernet adapter is definitively the issue here.
At first, It didn't work on a 1000Gb/s switch I use for all my devices as it was losing link all the time (no negociation issue here)
On the second second switch, it started to work but did not seem to be connected a 1000Gb/s
Since I did these tests with default android I cannot see information the the system.
I'll run more tests on Linux where I can play with the parameters.
I ran some test with several switches and I can confirm that the pine64 has an issue with 1000 Gb/s.
I tried different configuration and the pine 64 Ethernet adapter is definitively the issue here.
At first, It didn't work on a 1000Gb/s switch I use for all my devices as it was losing link all the time (no negociation issue here)
On the second second switch, it started to work but did not seem to be connected a 1000Gb/s
Since I did these tests with default android I cannot see information the the system.
I'll run more tests on Linux where I can play with the parameters.