diff --git a/opencontrail/compute/single4_0.yml b/opencontrail/compute/single4_0.yml
index b98522d..952827f 100644
--- a/opencontrail/compute/single4_0.yml
+++ b/opencontrail/compute/single4_0.yml
@@ -1,9 +1,11 @@
 applications:
 - opencontrail
+classes:
+  - service.opencontrail.compute.single
 parameters:
   _param:
+    opencontrail_version: 4.1
     opencontrail_compute_iface_mask: 24
-    opencontrail_version: 4.0
     linux_repo_contrail_component: oc40
   opencontrail:
     common:
@@ -11,7 +13,7 @@
       identity:
         engine: keystone
         host: ${_param:control_address}
-        port: 35357
+        port: ${_param:opencontrail_identity_port}
         token: ${_param:keystone_service_token}
         password: ${_param:opencontrail_admin_password}
       network:
@@ -19,8 +21,6 @@
         host: ${_param:control_address}
         port: 9696
     compute:
-      version: ${_param:opencontrail_version}
-      enabled: True
       config:
         members:
         - host: ${_param:opencontrail_control_node01_address}
@@ -31,11 +31,3 @@
         - host: ${_param:opencontrail_analytics_node01_address}
         - host: ${_param:opencontrail_analytics_node02_address}
         - host: ${_param:opencontrail_analytics_node03_address}
-      interface:
-        address: ${_param:opencontrail_compute_address}
-        dev: ${_param:opencontrail_compute_iface}
-        gateway: ${_param:opencontrail_compute_gateway}
-        mask: ${_param:opencontrail_compute_iface_mask}
-        dns: ${_param:opencontrail_compute_dns}
-        mtu: 9000
-