ovs_dpdk_br = ''
     if ds['dataplane'] == 'fdio':
         nets['tenant']['nic_mapping'][role]['phys_type'] = 'vpp_interface'
-        if ds['sdn_controller'] == 'opendaylight':
+        if ds['sdn_controller'] == 'opendaylight' and role == 'compute':
             nets['external'][0]['nic_mapping'][role]['phys_type'] = \
                 'vpp_interface'
             ext_net = 'vpp_interface'
             .get('uio-driver')):
         nets['tenant']['nic_mapping'][role]['uio-driver'] =\
             ds['performance'][role.title()]['vpp']['uio-driver']
-        if ds['sdn_controller'] == 'opendaylight':
+        if ds['sdn_controller'] == 'opendaylight' and role == 'compute':
             nets['external'][0]['nic_mapping'][role]['uio-driver'] =\
                 ds['performance'][role.title()]['vpp']['uio-driver']
     if (ds.get('performance', {}).get(role.title(), {}).get('vpp', {})
 
     if len(env_list) == 0:
         try:
             env_list.append(os.path.join(
-                con.THT_ENV_DIR, sdn_map[ds['sdn_controller']]['default']))
+                con.THT_ENV_DIR, sdn_map['default']))
         except KeyError:
             logging.warning("Unable to find default file for SDN")