Hi,
Maybe someone faced this issue.
I have the ESXi 5.1 with one 10GbE physical NIC and 2 VMs (Windows 7 64-bir Professional SP1).
Both VMs have the same configured VMXNET3, which is limited to 1Gbps Full Duplex in settings in Guest OS.
I ran iperf with "-w 1500k -l 512M -t 30" and obtained a strange results:
Bandwidth 8.2 Gbps
It seems that limitation doesn't work.
Maybe someone know how to fix it?