Merge pull request #133 from mpeuster/master

[osm/vim-emu.git] / src / emuvim / examples / monitoring_demo_topology.py

diff --git a/src/emuvim/examples/monitoring_demo_topology.py b/src/emuvim/examples/monitoring_demo_topology.py
index a5cf0b2..1e22b61 100755 (executable)
--- a/src/emuvim/examples/monitoring_demo_topology.py
+++ b/src/emuvim/examples/monitoring_demo_topology.py
@@ -1,20 +1,29 @@
 """
-This is an example topology for the distributed cloud emulator (dcemulator).
-(c) 2015 by Manuel Peuster <manuel.peuster@upb.de>
-
-
-This is an example that shows how a user of the emulation tool can
-define network topologies with multiple emulated cloud data centers.
-
-The definition is done with a Python API which looks very similar to the
-Mininet API (in fact it is a wrapper for it).
-
-We only specify the topology *between* data centers not within a single
-data center (data center internal setups or placements are not of interest,
-we want to experiment with VNF chains deployed across multiple PoPs).
-
-The original Mininet API has to be completely hidden and not be used by this
-script.
+Copyright (c) 2015 SONATA-NFV
+ALL RIGHTS RESERVED.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
 """
 import logging
 from mininet.log import setLogLevel
@@ -29,14 +38,19 @@ def create_topology1():
     """
     1. Create a data center network object (DCNetwork) with monitoring enabled
     """
-    net = DCNetwork(monitor=True)
+    net = DCNetwork(monitor=True, enable_learning=False)
 
     """
-    1b. add a monitoring agent to the DCNetwork
+    1b. Add endpoint APIs for the whole DCNetwork,
+        to access and control the networking from outside.
+        e.g., to setup forwarding paths between compute
+        instances aka. VNFs (represented by Docker containers), passing through
+        different switches and datacenters of the emulated topology
     """
     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
@@ -44,10 +58,10 @@ def create_topology1():
     """
     dc1 = net.addDatacenter("datacenter1")
     dc2 = net.addDatacenter("datacenter2")
-    dc3 = net.addDatacenter("long_data_center_name3")
-    dc4 = net.addDatacenter(
-        "datacenter4",
-        metadata={"mydata": "we can also add arbitrary metadata to each DC"})
+    #dc3 = net.addDatacenter("long_data_center_name3")
+    #dc4 = net.addDatacenter(
+    #    "datacenter4",
+    #    metadata={"mydata": "we can also add arbitrary metadata to each DC"})
 
     """
     3. You can add additional SDN switches for data center
@@ -60,11 +74,13 @@ def create_topology1():
        to define you topology.
        These links can use Mininet's features to limit bw, add delay or jitter.
     """
-    net.addLink(dc1, dc2, delay="10ms")
-    net.addLink(dc1, dc2)
-    net.addLink("datacenter1", s1, delay="20ms")
-    net.addLink(s1, dc3)
-    net.addLink(s1, "datacenter4")
+    #net.addLink(dc1, dc2, delay="10ms")
+    #net.addLink(dc1, dc2)
+    net.addLink(dc1, s1)
+    net.addLink(s1, dc2)
+    #net.addLink("datacenter1", s1, delay="20ms")
+    #net.addLink(s1, dc3)
+    #net.addLink(s1, "datacenter4")
 
 
     """
@@ -82,8 +98,8 @@ def create_topology1():
     # connect data centers to this endpoint
     zapi1.connectDatacenter(dc1)
     zapi1.connectDatacenter(dc2)
-    zapi1.connectDatacenter(dc3)
-    zapi1.connectDatacenter(dc4)
+    #zapi1.connectDatacenter(dc3)
+    #zapi1.connectDatacenter(dc4)
     # run API endpoint server (in another thread, don't block)
     zapi1.start()
 
@@ -96,10 +112,10 @@ def create_topology1():
          This will look like a real-world multi PoP/data center deployment
          from the perspective of an orchestrator.
     """
-    zapi2 = ZeroRpcApiEndpoint("0.0.0.0", 4343)
-    zapi2.connectDatacenter(dc3)
-    zapi2.connectDatacenter(dc4)
-    zapi2.start()
+    #zapi2 = ZeroRpcApiEndpoint("0.0.0.0", 4343)
+    #zapi2.connectDatacenter(dc3)
+    #zapi2.connectDatacenter(dc4)
+    #zapi2.start()
 
     """
     6. Finally we are done and can start our network (the emulator).