"""
-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
"""
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
"""
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
to define you topology.
These links can use Mininet's features to limit bw, add delay or jitter.
"""
- net.addLink(dc1, dc2)
- net.addLink("datacenter1", s1)
- 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")
+
"""
5. We want to access and control our data centers from the outside,
# 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()
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).