update example_topology.py

diff --git a/emuvim/dcemulator/net.py b/emuvim/dcemulator/net.py
index 8379cd3..4bf9224 100755 (executable)
--- a/emuvim/dcemulator/net.py
+++ b/emuvim/dcemulator/net.py
@@ -5,9 +5,9 @@ Distributed Cloud Emulator (dcemulator)
 import logging
 
 from mininet.net import Dockernet
-from mininet.node import Controller, OVSKernelSwitch, Switch, Docker, Host
+from mininet.node import Controller, OVSSwitch, OVSKernelSwitch, Switch, Docker, Host, RemoteController
 from mininet.cli import CLI
-from mininet.log import setLogLevel, info
+from mininet.log import setLogLevel, info, debug
 from mininet.link import TCLink, Link
 import networkx as nx
 from monitoring import DCNetworkMonitor

diff --git a/emuvim/example_topology.py b/emuvim/example_topology.py
index 3c53c58..35c87af 100755 (executable)
--- a/emuvim/example_topology.py
+++ b/emuvim/example_topology.py
@@ -30,6 +30,13 @@ def create_topology1():
     """
     net = DCNetwork()
 
+    """
+    1b. add a monitoring agent to the DCNetwork
+    """
+    mon_api = ZeroRpcApiEndpointDCNetwork("0.0.0.0", 5151)
+    mon_api.connectDCNetwork(net)
+    mon_api.start()
+
     """
     2. Add (logical) data centers to the topology
        (each data center is one "bigswitch" in our simplified
@@ -102,6 +109,8 @@ def create_topology1():
     net.start()
     net.CLI()
     # when the user types exit in the CLI, we stop the emulator
+    # we need to explicitly stop the monitoring api, so the Ryu controller is also terminated
+    mon_api.stop()
     net.stop()