This was released in Mitaka as an experimental security groups driver. It is not the default and it required a newer OVS version not shipped with many distros. So it was possible to use but I'm not sure how large the user base was for it.
This was released in Mitaka as an experimental security groups driver. It is not the default and it required a newer OVS version not shipped with many distros. So it was possible to use but I'm not sure how large the user base was for it.