How to configure IP over IB (IPoIB) on Red Hat CoreOS (RHCOS) nodes?

Solution Verified - Updated -

Issue

  • How to configure IP over InfiniBand (IPoIB) on Red Hat CoreOS (RHCOS) ?
  • In a Red Hat OpenShift Container Platform 4.x cluster, what is the supported way of configuring IP addresses on additional Network Interface cards (NIC) on Red Hat CoreOS (RHCOS) nodes?
  • How can Red Hat OpenShift Container Platform nodes be integrated through Infiniband ports with DataDirect Networks (DDN) EXAScaler storage appliances?

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4.x
  • Red Hat CoreOS (RHCOS)
    • 4.x

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