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

    Connect 3 nodes without a switch

    benedikt.oehlrich@fau.de

      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:

      Node1----------Node2----------Node3

       

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

      Node1----------Node2----------Node3

         |--------------------------------------|

       

      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.