1 Reply Latest reply on Oct 4, 2016 11:20 PM by karen

    Mellanox Connectx-2 shows cable unplugged when connected to switch


      I am new to 10gbe, and was able to direct connect 2 test severs using Connectx-2 cards and SPF+ cable successfully, but when connected to the SPF+ port on my 3Com switch, it shows the cable unplugged.  This is my test set up.


      Server 2012 R2, all updates installed.  HP DL380 G7s. 

      Switches:   3Com 2948- SFP-Plus x4 SFP Connections.   Cisco Passive Copper 10gbe Cable, testing working

      Mellanox HW Card settings: Eth, all other settings at defaults

      Information: Driver 4.80.10388.0   Firmware 2.9.1200  Part# MNPA19-XTR


      I understand when using Infiniband it requires a Subnet Manager, but does this also apply in Ethernet mode?

      Is a special cable required?  or special driver settings?


      Thanks, and look forward to playing with these.