9 Replies Latest reply on Sep 25, 2017 7:57 PM by Intel Corporation

    Recieve traffic on fiber-card with RX only?



      I have some servers with Intel 82599ES 10-Gigabit SFI/SFP+ nics, and the SFP+ modules are Intel 10Gig LR (10GSFPLR). These are connected to some fiber-taps, with a single fiber-cable (since the taps are only sending traffic).

      This means that we do not get a link on the nic. But will we be able to see the traffic on the nic, using promisc mode in Linux?


      I have of course tried the ethtool, but it does not seem to work, despite no warning or error messages. Is it at all possible to force the speed of the nic, without link (and auto-negotiation)?