RHEV - Why is it required to set OnlyRequiredNetworksMandatoryForVdsSelection when connecting to OpenStack

Solution Verified - Updated -


  • The Manual tells the following Option should be set.
    • Configure the Manager to only consider required networks for VM scheduling:
    • # engine-config --set OnlyRequiredNetworksMandatoryForVdsSelection=true
  • What is the reason this should be done?
  • Is this required only when you use the Neutron Provider?
  • Only in special cases required?
  • It seems to me that this option would be better set to the default false when not required.


  • Red Hat Enterprise Virtualization 3.x

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