3 Replies Latest reply on Jun 20, 2017 2:34 PM by sophie

    Connect 3 nodes without a switch


      Hi guys,

      I'm trying to configure a network of 3 nodes to comunicate over IB without using a switch.

      Each node is equiped with a dual-port ConnectX-4 adapter, so I thought it might be possible to connect them directly with each other.



      So this is basically the setup I thought about:



      The other possible solution would be to setup a ring, so that every node has a direct connection to every other node:




      The problem is i coudn't figure out the correct way to set this up.
      What is the correct configuration for the subnetmanager in this setup?


      I hope you can help me.