>-----Original Message----- >From: Peter Schmitt [mailto:p.schmitt...@gmx.net] >Sent: Tuesday, December 08, 2015 8:02 AM >To: e1000-devel@lists.sourceforge.net >Subject: [E1000-devel] IXGBE X520-DA2 82599ES SFP+ DA Is carrier detection >working? > >Hi everyone, > >I am connecting two boxes using X520-DA2 82599ES 10-Gigabit SFI/SFP+ >NICs and the ixgbe >driver in Linux. Those cards have two SFP+ ports. If I connect a Direct >Attach Copper cable, the carrier detection does not work correctly. As >soon as >the device in Linux is up, there is a carrier and it doesn't matter if the >device on the other box is up or down.
Is the device and driver on the "other box" the same? >If I use Fibre and an SR module, the carrier detection works flawless. The >interface detects a carrier if the interface on the other box is up and >doesn't if the interface is down. The driver shuts off the laser for SFP+ modules and can power down the PHY on copper parts, but that probably won't happen on DA copper cable. When you bring down the interface on the other end - if you still see the LINK LED of the NIC to be lit then the driver is reporting the status correctly. Thanks, Emil ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
