Instance communication problems with Mellanox drivers and Geneve tunnels ( RHOSP 16.1)

Solution Verified - Updated -


  • After upgrading to OSP16 instances are not able the communicate or reach other networks, mlx5 driver is used
  • New OSP16 installation is experiencing connectivity issues, mlx5 driver is used
  • There is alot of delay between the packet reaches the nic until it is seen in the switch (around 30 seconds), mlx5 driver is used


  • Red Hat Openstack Platform 16.1
  • Mellanox drivers (mlx5)

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