Hello another support admin has suggested that my cable only supports 10Gbit.
That was a fair assesment. I have gotten a real 56 Gbit Infiniband cable yesterday.
Unfortunately still nowhere near 40 Gbit or 32Gbit IPOIB performance
Sending alone yields 16Gbit. It should perform better! Recieving works with 16 Gbit when used alone.
Mixed yields 8GBbit Send and 8Gbit Recieve.
Do you have any suggestion of what could be wrong?