2 Replies Latest reply on Aug 22, 2013 9:29 AM by Kos87

    VMXNET3 limited to 1Gbps still provides 10Gbps bandwidth

    Kos87 Lurker

      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?