CARP strange bandwidth problem



  • Hi,

    I have a "problem" with my pfsense when i'm using CARP.

    Let me summon it up:

    physical server dell r610 running vmware esxi 5.0, with a vmware pfsense on top.

    My setup:
    PfSense
    OPT1: 192.168.1.1
    OPT2: 192.168.2.1

    Servers:
    Server A: 192.168.1.10, gateway 192.168.1.1
    Server B: 192.168.2.20, gateway 192.168.2.1

    when i transfer a file from server A to server B i get full usage of my 1gbit link in my HP switch.

    When i enable carp on OPT1 so the conf looks like this:
    OPT1: 192.168.1.254 // VIP 192.168.1.1
    OPT2: 192.168.2.1

    Then i only get half the performance (470mbit). Is this expected behaviour? If i change the gateway on the server A to 192.168.1.254 the transfer rate increases to 1gbit…

    I've just attached a screenshot of the interface graph in the switch...



  • I've just noticed that if i change the VIP in PfSense from CARP to IP Alias, then the problem disappears.

    Any thoughts?


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