title: Openstack regions
body: <p>We are using arista cvx with our openstack cluster and we hit the 2000 limit. Arista suggested to use regions but in our setup we never used it.
  I read something that region is actually a new cluster with sharing the current horizon and keystone.</p>
  
  <p>Can you help me with some idea with best practices how we should setup/scale?</p>
  
  <p>I don’t understand that either, if the horizon is the same and we are using loadbalancers in front of the controllers, how for example we can manage let’s say all controllers from one controller? </p>
  
  <p>Appreciate best practices.</p>