Hi! I've got Power Edge R720xd with two Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz and 4x DDR3 8gb of RAM, totaly 32gb. 2012 windows server. The problem is in very slow loopback speed. I tested with iperf3 and speed is about 1Gbits/s. In other servers in network speed is about 4-6 Gbites/s.

Can anyone test loopback speed on R720xd with same CPU?