code: def is_openstack_running(self):
          
          try:
              if (ovs_vdp.is_bridge_present(self.br_ex, self.root_helper) and
                      ovs_vdp.is_bridge_present(self.br_integ,
                                                self.root_helper)):
                  return True
              else:
                  return False
          except Exception as e:
              LOG.error("Exception in is_openstack_running %s", str(e))
              return False
docs: Currently it just checks for the presence of both the bridges.