diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index f889c44..9bd437e 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -696,7 +696,8 @@
 
     def _create_network(self, networks_client=None,
                         routers_client=None, tenant_id=None,
-                        namestart='network-smoke-'):
+                        namestart='network-smoke-',
+                        port_security_enabled=True):
         if not networks_client:
             networks_client = self.networks_client
         if not routers_client:
@@ -704,7 +705,9 @@
         if not tenant_id:
             tenant_id = networks_client.tenant_id
         name = data_utils.rand_name(namestart)
-        result = networks_client.create_network(name=name, tenant_id=tenant_id)
+        network_kwargs = dict(name=name, tenant_id=tenant_id,
+                              port_security_enabled=port_security_enabled)
+        result = networks_client.create_network(**network_kwargs)
         network = result['network']
 
         self.assertEqual(network['name'], name)
@@ -1193,7 +1196,8 @@
 
     def create_networks(self, networks_client=None,
                         routers_client=None, subnets_client=None,
-                        tenant_id=None, dns_nameservers=None):
+                        tenant_id=None, dns_nameservers=None,
+                        port_security_enabled=True):
         """Create a network with a subnet connected to a router.
 
         The baremetal driver is a special case since all nodes are
@@ -1219,7 +1223,8 @@
         else:
             network = self._create_network(
                 networks_client=networks_client,
-                tenant_id=tenant_id)
+                tenant_id=tenant_id,
+                port_security_enabled=port_security_enabled)
             router = self._get_router(client=routers_client,
                                       tenant_id=tenant_id)
             subnet_kwargs = dict(network=network,