OpenShift SDN VXLAN interface brought down by NetworkManager

Solution In Progress - Updated -

Issue

  • Pod to pod communication is not working across nodes on OpenShift SDN.
  • The vxlan_sys_XXXX interface is shown as DOWN as per diagnostic steps.

Environment

  • Red Hat OpenShift Container Platform 4
    • 4.9
    • 4.10
  • OpenShift SDN

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