diff --git a/classes/cluster/virtual-mcp11-contrail-nfv/openstack/init.yml b/classes/cluster/virtual-mcp11-contrail-nfv/openstack/init.yml
index 28b0404..33345a4 100755
--- a/classes/cluster/virtual-mcp11-contrail-nfv/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-contrail-nfv/openstack/init.yml
@@ -111,6 +111,7 @@
     ceilometer_influxdb_password: lmapass
   linux:
     network:
+      purge_hosts: true
       host:
         prx:
           address: ${_param:openstack_proxy_address}