12 Replies Latest reply on Apr 6, 2018 4:02 AM by JOY12

    duplicate MAC address of two different X520-DA2 NICs

    Jirii

      Hello,

       

      my question is directed to Intel NIC developers - we (CDN77) are using your X520-DA2 cards in thousands of servers - we have discovered that two different X520-DA2 NICs we have in our network do use the SAME MAC address.

       

      The conflicting MAC is 00:1b:21:bc:32:15.

       

      Is this something what 'can happen from time to time'? It would be a real flaw in the design - this makes makes me think the duplicate MAC is caused by some Chinese copy of the genuine Intel NIC.

       

      You can imagine what mess can this cause.

       

      If it helps, I can send more detail information regarding both NICs.

       

       

      Thank you!