diff --git a/src/emuvim/api/openstack/__init__.py b/src/emuvim/api/openstack/__init__.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/chain_api.py b/src/emuvim/api/openstack/chain_api.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/compute.py b/src/emuvim/api/openstack/compute.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/docker_util.py b/src/emuvim/api/openstack/docker_util.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/heat_parser.py b/src/emuvim/api/openstack/heat_parser.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/ip_handler.py b/src/emuvim/api/openstack/ip_handler.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/manage.py b/src/emuvim/api/openstack/manage.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_api_endpoint.py b/src/emuvim/api/openstack/openstack_api_endpoint.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/__init__.py b/src/emuvim/api/openstack/openstack_dummies/__init__.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/base_openstack_dummy.py b/src/emuvim/api/openstack/openstack_dummies/base_openstack_dummy.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/glance_dummy_api.py b/src/emuvim/api/openstack/openstack_dummies/glance_dummy_api.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/heat_dummy_api.py b/src/emuvim/api/openstack/openstack_dummies/heat_dummy_api.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/keystone_dummy_api.py b/src/emuvim/api/openstack/openstack_dummies/keystone_dummy_api.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/neutron_dummy_api.py b/src/emuvim/api/openstack/openstack_dummies/neutron_dummy_api.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/openstack_dummies/nova_dummy_api.py b/src/emuvim/api/openstack/openstack_dummies/nova_dummy_api.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/__init__.py b/src/emuvim/api/openstack/resources/__init__.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/image.py b/src/emuvim/api/openstack/resources/image.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/instance_flavor.py b/src/emuvim/api/openstack/resources/instance_flavor.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/load_balancer.py b/src/emuvim/api/openstack/resources/load_balancer.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/model.py b/src/emuvim/api/openstack/resources/model.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/net.py b/src/emuvim/api/openstack/resources/net.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/port.py b/src/emuvim/api/openstack/resources/port.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/resource.py b/src/emuvim/api/openstack/resources/resource.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/router.py b/src/emuvim/api/openstack/resources/router.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/server.py b/src/emuvim/api/openstack/resources/server.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/stack.py b/src/emuvim/api/openstack/resources/stack.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/openstack/resources/template.py b/src/emuvim/api/openstack/resources/template.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/api/rest/network.py b/src/emuvim/api/rest/network.py
index bce10fc..0479ee6 100755
--- a/src/emuvim/api/rest/network.py
+++ b/src/emuvim/api/rest/network.py
@@ -90,7 +90,6 @@
             if data is None:
                 data = {}
 
-            logging.info("data: {}".format(data))
             vnf_src_name = data.get("vnf_src_name")
             vnf_dst_name = data.get("vnf_dst_name")
             vnf_src_interface = data.get("vnf_src_interface")
diff --git a/src/emuvim/cli/rest/network.py b/src/emuvim/cli/rest/network.py
index b4a1a89..82fe99f 100755
--- a/src/emuvim/cli/rest/network.py
+++ b/src/emuvim/cli/rest/network.py
@@ -26,10 +26,8 @@
 partner consortium (www.sonata-nfv.eu).
 """
 from requests import get,put, delete
-import pprint
 import argparse
 
-pp = pprint.PrettyPrinter(indent=4)
 
 class RestApiClient():
 
@@ -57,7 +55,7 @@
 
         response = put("{0}/restapi/network".format(args.get("endpoint")),
                        params=params)
-        pp.pprint(response.text)
+        print(self._nice_print(response.text))
 
     def remove(self, args):
         params = self._create_dict(
@@ -73,7 +71,7 @@
 
         response = delete("{0}/restapi/network".format(args.get("endpoint")),
                           params=params)
-        pp.pprint(response.text)
+        print(self._nice_print(response.text))
 
     def _parse_vnf_name(self, vnf_name_str):
         vnf_name = vnf_name_str.split(':')[0]
@@ -90,6 +88,12 @@
     def _create_dict(self, **kwargs):
         return kwargs
 
+    def _nice_print(self, text):
+        # some modules seem to return unicode strings where newlines, other special characters are escaped
+        text = str(text).replace('\\n', '\n')
+        text = str(text).replace('\\"', '"')
+        return text
+
 parser = argparse.ArgumentParser(description='son-emu-cli network')
 parser.add_argument(
     "command",
@@ -108,7 +112,7 @@
     "--weight", "-w", dest="weight",
     help="weight edge attribute to calculate the path")
 parser.add_argument(
-    "--priority", "-p", dest="priority", default="0",
+    "--priority", "-p", dest="priority", default="1000",
     help="priority of flow rule")
 parser.add_argument(
     "--match", "-m", dest="match",
@@ -117,7 +121,7 @@
     "--bidirectional", "-b", dest="bidirectional", action='store_true',
     help="add/remove the flow entries from src to dst and back")
 parser.add_argument(
-    "--cookie", "-c", dest="cookie",
+    "--cookie", "-c", dest="cookie", default="10",
     help="cookie for this flow, as easy to use identifier (eg. per tenant/service)")
 parser.add_argument(
     "--endpoint", "-e", dest="endpoint",
diff --git a/src/emuvim/dashboard/js/graph.json b/src/emuvim/dashboard/js/graph.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/dcemulator/net.py b/src/emuvim/dcemulator/net.py
index 5dfcbcd..7efb3f0 100755
--- a/src/emuvim/dcemulator/net.py
+++ b/src/emuvim/dcemulator/net.py
@@ -33,6 +33,7 @@
 import re
 import requests
 import os
+import json
 
 from mininet.net import Containernet
 from mininet.node import Controller, DefaultController, OVSSwitch, OVSKernelSwitch, Docker, RemoteController
@@ -50,6 +51,11 @@
 # default CPU period used for cpu percentage-based cfs values (microseconds)
 CPU_PERIOD = 1000000
 
+# default priority setting for added flow-rules
+DEFAULT_PRIORITY = 1000
+# default cookie number for new flow-rules
+DEFAULT_COOKIE = 10
+
 class DCNetwork(Containernet):
     """
     Wraps the original Mininet/Containernet class and provides
@@ -710,7 +716,15 @@
                 switch_inport_nr = self.DCNetwork_graph[current_hop][next_hop][0]['dst_port_nr']
                 current_hop = next_hop
 
-        return "path {2} between {0} and {1}".format(vnf_src_name, vnf_dst_name, cmd)
+        flow_options = {
+            'priority':kwargs.get('priority', DEFAULT_PRIORITY),
+            'cookie':kwargs.get('cookie', DEFAULT_COOKIE),
+            'vlan':kwargs['vlan'],
+            'path':kwargs['path'],
+            'match_input':kwargs.get('match')
+        }
+        flow_options_str = json.dumps(flow_options, indent=1)
+        return "success: {2} between {0} and {1} with options: {3}".format(vnf_src_name, vnf_dst_name, cmd, flow_options_str)
 
     def _set_flow_entry_ryu_rest(self, node, switch_inport_nr, switch_outport_nr, **kwargs):
         match = 'in_port=%s' % switch_inport_nr
@@ -722,7 +736,7 @@
         index = kwargs.get('pathindex')
 
         vlan = kwargs.get('vlan')
-        priority = kwargs.get('priority')
+        priority = kwargs.get('priority', DEFAULT_PRIORITY)
         # flag to not set the ovs port vlan tag
         skip_vlan_tag = kwargs.get('skip_vlan_tag')
         # table id to put this flowentry
diff --git a/src/emuvim/examples/demo_emulator_mano_integration.py b/src/emuvim/examples/demo_emulator_mano_integration.py
old mode 100644
new mode 100755
index 992d972..f13b9d3
--- a/src/emuvim/examples/demo_emulator_mano_integration.py
+++ b/src/emuvim/examples/demo_emulator_mano_integration.py
@@ -20,7 +20,7 @@
         Initialize multi PoP emulator network.
         """
         super(DemoTopology, self).__init__(
-            monitor=False,
+            monitor=True,
             enable_learning=True
         )
         # define members for later use
diff --git a/src/emuvim/examples/demo_topo_3pop.py b/src/emuvim/examples/demo_topo_3pop.py
index 8020fc8..aee5f91 100755
--- a/src/emuvim/examples/demo_topo_3pop.py
+++ b/src/emuvim/examples/demo_topo_3pop.py
@@ -47,7 +47,7 @@
 
 def create_topology1():
     # create topology
-    net = DCNetwork(controller=RemoteController, monitor=False, enable_learning=True)
+    net = DCNetwork(controller=RemoteController, monitor=True, enable_learning=True)
     dc1 = net.addDatacenter("dc1")
     dc2 = net.addDatacenter("dc2")
     dc3 = net.addDatacenter("dc3")
diff --git a/src/emuvim/examples/profiling.py b/src/emuvim/examples/profiling.py
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/api_base.py b/src/emuvim/test/api_base.py
index 57d4aa5..3464f45 100755
--- a/src/emuvim/test/api_base.py
+++ b/src/emuvim/test/api_base.py
@@ -68,7 +68,7 @@
         specific controller functionality.
         """
         self.net = DCNetwork(controller=controller, **kwargs)
-        self.api = RestApiEndpoint("127.0.0.1", 5001)
+        self.api = RestApiEndpoint("127.0.0.1", 5001, self.net)
         # add some switches
         # start from s1 because ovs does not like to have dpid = 0
         # and switch name-number is being used by mininet to set the dpid
diff --git a/src/emuvim/test/test-initial-template.yml b/src/emuvim/test/test-initial-template.yml
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/test-scaleout-template.yml b/src/emuvim/test/test-scaleout-template.yml
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_emulator.py b/src/emuvim/test/unittests/test_emulator.py
index b5612a1..94db55f 100755
--- a/src/emuvim/test/unittests/test_emulator.py
+++ b/src/emuvim/test/unittests/test_emulator.py
@@ -117,6 +117,57 @@
 
 class testEmulatorNetworking( SimpleTestTopology ):
 
+    def testSDNChainingSingleService_withLearning(self):
+        """
+        Create a two data centers and interconnect them with additional
+        switches between them.
+        Uses Ryu SDN controller.
+        Connect the Docker hosts to different datacenters and setup the links between.
+        """
+        # create network
+        self.createNet(
+            nswitches=3, ndatacenter=2, nhosts=0, ndockers=0,
+            autolinkswitches=True,
+            controller=RemoteController,
+            enable_learning=True)
+        # setup links
+        self.net.addLink(self.dc[0], self.s[0])
+        self.net.addLink(self.s[2], self.dc[1])
+        # start Mininet network
+        self.startNet()
+
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1", network=[{'id':'intf1', 'ip':'10.0.10.1/24'}])
+        vnf2 = self.dc[1].startCompute("vnf2", network=[{'id':'intf2', 'ip':'10.0.10.2/24'}])
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 2)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 5)
+        # check status
+        # check get status
+        s1 = self.dc[0].containers.get("vnf1").getStatus()
+        print s1
+        self.assertTrue(s1["name"] == "vnf1")
+        self.assertTrue(s1["state"]["Running"])
+        self.assertTrue(s1["network"][0]['intf_name'] == 'intf1')
+        self.assertTrue(s1["network"][0]['ip'] == '10.0.10.1/24')
+
+        s2 = self.dc[1].containers.get("vnf2").getStatus()
+        print s2
+        self.assertTrue(s2["name"] == "vnf2")
+        self.assertTrue(s2["state"]["Running"])
+        self.assertTrue(s2["network"][0]['intf_name'] == 'intf2')
+        self.assertTrue(s2["network"][0]['ip'] == '10.0.10.2/24')
+
+        # should be connected because learning = True
+        self.assertTrue(self.net.ping([vnf1, vnf2]) <= 0.0)
+        # setup links
+        self.net.setChain('vnf1', 'vnf2', 'intf1', 'intf2', bidirectional=True, cmd='add-flow')
+        # should still be connected
+        self.assertTrue(self.net.ping([vnf1, vnf2]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
     def testSDNChainingSingleService(self):
         """
         Create a two data centers and interconnect them with additional
diff --git a/src/emuvim/test/unittests/test_heatapi_keystone_get_token.json b/src/emuvim/test/unittests/test_heatapi_keystone_get_token.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_heatapi_template_chaining.json b/src/emuvim/test/unittests/test_heatapi_template_chaining.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_heatapi_template_create_stack.json b/src/emuvim/test/unittests/test_heatapi_template_create_stack.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_heatapi_template_update_stack.json b/src/emuvim/test/unittests/test_heatapi_template_update_stack.json
old mode 100644
new mode 100755
diff --git a/src/emuvim/test/unittests/test_restapi.py b/src/emuvim/test/unittests/test_restapi.py
index ea0b693..268b12b 100755
--- a/src/emuvim/test/unittests/test_restapi.py
+++ b/src/emuvim/test/unittests/test_restapi.py
@@ -92,14 +92,19 @@
 
         print('network add vnf1 vnf2->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli network add -src vnf1 -dst vnf2 -b -c 10", shell=True)
+        output = subprocess.check_output("son-emu-cli network add -src vnf1 -dst vnf2 -b -c 10", shell=True)
+        self.assertTrue("add-flow" in output)
+        self.assertTrue("success" in output)
+
         print('network remove vnf1 vnf2->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli network remove -src vnf1 -dst vnf2 -b", shell=True)
+        output = subprocess.check_output("son-emu-cli network remove -src vnf1 -dst vnf2 -b", shell=True)
+        self.assertTrue("del-flows" in output)
+        self.assertTrue("success" in output)
 
         print('>>>>> checking --> son-emu-cli compute stop -d datacenter0 -n vnf2 ->>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli compute stop -d datacenter0 -n vnf2", shell=True)
+        output = subprocess.check_output("son-emu-cli compute stop -d datacenter0 -n vnf2", shell=True)
 
         # check number of running nodes
         self.assertTrue(len(self.getContainernetContainers()) == 2)
@@ -111,7 +116,6 @@
 
         print('>>>>> checking --> son-emu-cli compute list ->>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli compute list", shell=True)
         output = subprocess.check_output("son-emu-cli compute list", shell=True)
 
         # check datacenter list result
@@ -119,7 +123,6 @@
 
         print('>>>>> checking --> son-emu-cli compute status -d datacenter0 -n vnf1 ->>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli compute status -d datacenter0 -n vnf1", shell=True)
         output = subprocess.check_output("son-emu-cli compute status -d datacenter0 -n vnf1", shell=True)
         output = ast.literal_eval(output)
 
@@ -129,18 +132,13 @@
 
         print('>>>>> checking --> son-emu-cli datacenter list ->>>>>>>>>>>>>>>>>>>>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli datacenter list", shell=True)
         output = subprocess.check_output("son-emu-cli datacenter list", shell=True)
-
         # check datacenter list result
-
         self.assertTrue("datacenter0" in output)
 
         print('->>>>> checking --> son-emu-cli datacenter status -d datacenter0 ->>>>>>>>')
         print('->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>')
-        subprocess.call("son-emu-cli datacenter status -d datacenter0", shell=True)
         output = subprocess.check_output("son-emu-cli datacenter status -d datacenter0", shell=True)
-
         # check datacenter status result
         self.assertTrue("datacenter0" in output)