When using OpenStack Nova and Neutron Networking, virtual machines are intermittently unable to connect to the network.

Solution Verified - Updated -

Issue

  • On compute nodes, inbound network connectivity to Nova-managed virtual machines via their floating ip address -- and outbound connectivity from the virtual machines to addresses outside of their private network -- was intermittently unavailable.
  • Restarting OpenStack services may temporarily alleviate the problem

Environment

  • Red Hat Enterprise Linux OpenStack Platform

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