9 Replies Latest reply on Aug 6, 2017 7:41 PM by Intel Corporation

    XL710-QDA2 with Intel QSFP-40G-SR4 SFP


      Hi All,


        We have "Intel Ethernet Converged Network Adapter XL710-QDA2".


        1) Configured in 2x40 mode


        2) The two ports on the board are connected back to back with below SFP:



              40GBase-CU QSFP+ Cable 1m


            We are able to observe that the link status on both ports is UP. And, we are able to run tests between the ports.


        3) When we use the below Intel SFP's on both ports connected with MTP 24 fibre optical cable, the ports are not coming UP (Link status shows down)



              QSFP-40G-SR4  16-26

              Class 1  21CFR1040.10

              LN#50 6/2007



           Please help us in understanding why the ports are not coming up with the above mentioned Intel SPF's (point 3).

      Is the optical cable we are using compatible with the SPF's or need to use some other optical cable or SFP to bring the ports UP?

      Should we configure the board in any specific mode ?


      Looking ahead for your response

      Thanks in advance


      -- Anand Prasad