Follow Upgrading RDO To Icehouse.

    Everything (Nova upgrade)  works fine until section "Upgrade Neutron"
          1. cd /etc/init.d
          2. for service in neutron-*; do service $service stop; done
          3. yum -y update *neutron* - doesn't find any package for update
          4. neutron-manage db_sync  - doesn't find "neutron-manage"  command
          5. Updated  neutron.conf as advised
      nova_url = http://<IP>:8774/v2
      nova_admin_username = admin
      nova_admin_tenant_id = <admin tenant id> <= admin tenant's ID  (like it works on F20)
      nova_admin_password = <admin password> <= CONFIG_KEYSTONE_ADMIN_PW  (like it works on F20)
      nova_admin_auth_url = http://<IP>:5000/v2.0/
         6. for service in neutron-*; do service $service start; done
         7. Host rebooted && openstack-status verified OK
         8. Attemp to create new Cirros Instance:  compute.log reports failure to create VIF ( status Error)
    I cannot understand what I did wrong. 
AIO IceHouse install via packstack on clean CentOS 6.5 host  works just fine. Neutron.conf installed is already as needed