Openshift: Openvswitch vxlan to tunnel devices connectivity issues

Solution In Progress - Updated -


  • We identified that when we can ping tunX between machines of same hypervisor but can't ping to tunX between machines of different hypervisors.
  • But we need help on this as tunX being created by OpenShift is not accessible so we need isolate on which part the issue is Eg- Openshift or HyperV.
  • Seeing some intermittent packet loss between tun devices on Openshift nodes.


  • Red Hat Enterprise Linux 7
  • Openshift
    • SDN overlays
    • Microsoft Hyper-V
  • Cisco switches

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