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    Slow speed from pfSense to pfSense on 10GbE WAN

    Scheduled Pinned Locked Moved General pfSense Questions
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    • U
      unsichtbarre
      last edited by

      I have pfSense (2.6.0) installed at two sites, both have 10GbE WAN and 10GbE LAN, same ISP (Cogent)
      pfSense is running as a VMware VM at both sites with vmxnet3 adapter type, consistently low CPU usage.
      When I run iperf in pfSense, I get something like 54Mbps site to site, no matter the window
      If I connect a VM on same host/vSwitch (Kali) directly to the IP/port at both locations, I can push 2.5Gbps with iperf.

      ISP suggests that speed/duplex need to be set manually, not autonegotiate, however pfSense is not providing me the opportunity to do so.

      Does anybody have any insight or suggestions?

      THX,
      -John

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      • P
        Patch @unsichtbarre
        last edited by

        @unsichtbarre said in Slow speed from pfSense to pfSense on 10GbE WAN:

        When I run iperf in pfSense

        pfsense is a firewall designed to optimise traffic through it not to/from it.
        To test performance you need to run iperf on separate machines.

        However 54Mbps is slow, suggesting something else is wrong as well

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          First try setting the values shown here so you get multiqueues on the NICs:
          https://docs.netgate.com/pfsense/en/latest/hardware/tune.html#vmware-vmx-4-interfaces

          Steve

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          • U
            unsichtbarre @stephenw10
            last edited by

            @stephenw10 Thanks Steve, I believe that this is the first place I will go.

            -John

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