文件列表:

figures/ (0, 2019-09-05)
figures/GPIO_raspberryPI3.png (225562, 2019-09-05)
figures/archi-cables-pi-fattree.png (766791, 2019-09-05)
figures/archi-cables-tower.png (817694, 2019-09-05)
figures/network_GRAPH_16HOSTS(IP).png (524016, 2019-09-05)
figures/results1.png (179527, 2019-09-05)
figures/results2.png (193554, 2019-09-05)
mininet-simulation/ (0, 2019-09-05)
mininet-simulation/app/ (0, 2019-09-05)
mininet-simulation/app/defaultPath.py (4945, 2019-09-05)
mininet-simulation/app/deviceList/ (0, 2019-09-05)
mininet-simulation/app/deviceList/__init__.py (0, 2019-09-05)
mininet-simulation/app/deviceList/deviceList_k4.py (813, 2019-09-05)
mininet-simulation/app/deviceList/deviceList_k8.py (3125, 2019-09-05)
mininet-simulation/app/flowMeasure.py (7642, 2019-09-05)
mininet-simulation/app/monitoringTools.py (4733, 2019-09-05)
mininet-simulation/app/ruleTemplate/ (0, 2019-09-05)
mininet-simulation/app/ruleTemplate/ruleTemplate_IPdest_portOUT.json (728, 2019-09-05)
mininet-simulation/app/ruleTemplate/ruleTemplate_portIN_portOUT.json (616, 2019-09-05)
mininet-simulation/app/runElasticTree.py (1013, 2019-09-05)
mininet-simulation/app/topoDiscovery.py (4371, 2019-09-05)
mininet-simulation/fattree.py (5034, 2019-09-05)
pi-simulation/ (0, 2019-09-05)
pi-simulation/app/ (0, 2019-09-05)
pi-simulation/app/defaultPath.py (4323, 2019-09-05)
pi-simulation/app/deviceList/ (0, 2019-09-05)
pi-simulation/app/deviceList/__init__.py (0, 2019-09-05)
pi-simulation/app/deviceList/deviceList_Pi.py (563, 2019-09-05)
pi-simulation/app/flowMeasure.py (7771, 2019-09-05)
pi-simulation/app/monitoringTools.py (3981, 2019-09-05)
pi-simulation/app/powerControl.py (1106, 2019-09-05)
pi-simulation/app/ruleTemplate/ (0, 2019-09-05)
pi-simulation/app/ruleTemplate/ruleTemplate_IPdest_portOUT.json (728, 2019-09-05)
pi-simulation/app/ruleTemplate/ruleTemplate_internet_access.json (603, 2019-09-05)
pi-simulation/app/ruleTemplate/ruleTemplate_portIN_portOUT.json (616, 2019-09-05)
pi-simulation/app/runElasticTree.py (641, 2019-09-05)
pi-simulation/app/topoDiscovery.py (3928, 2019-09-05)
pi-simulation/scriptsSSH_pi/ (0, 2019-09-05)
... ...

GreenSDN project : Create a plug and play application implementing ElasticTree # Reporsitory Organisation ### ``` mininet-simulation ``` folder: * *app* : external application using the API REST of ONOS. This is the logical module of the ElasticTree application. * ```topo_discovery.py``` : to build graph of the current topology based on ONOS info * ``` defaultpath.py``` : to create single default path between every host in the network * ``` flowMeasure.py``` : to compute the number of switches needed in each layer in order to satisfy traffic and save energy * ``` monitoringTools.py ``` : basic functions * ``` runElasticTree.py ``` : main function (deamon) * *deviceList* : folder to store the list of devices for 4 and 4 degree fattre * *ruleTempalte*: folder to store json template of flow rules * ``fattree.py`` : Python file to create virtual SDN network connected to ONOS controller (fat-tree topology) using mininet. The topology is k-fattree (4 or 8 degree) ### ``` Pi-simulation``` folder: * *app* : external application using the API REST of ONOS. This is the logical module of the ElasticTree application. * ```topo_discovery.py``` : to build graph of the current topology based on ONOS info * ``` defaultpath.py``` : to create single default path between every host in the network * ``` flowMeasure.py``` : to compute the number of switches needed in each layer in order to satisfy traffic and save energy * ``` monitoringTools.py ``` : basic functions * ``` powerControl.py ``` : to monitor the power of Raspberry-Pis switches according to the number of switches needed * ``` runElasticTree.py ``` : main function (deamon) * *deviceList* : folder to store the list of devices for our special fattre * *ruleTempalte*: folder to store json template of flow rules * *scriptsSSH_pi* : scripts to simplify the management of Raspberry-pi * ``` pi_power_control.py ```: pyhton script used in the power manager Raspberry-Pi to control the relay using GPIO * ``` power_measure.py ```: to read the power consumed by the tower of Raspberry-Pis through ePDUs * ``` runall_background ```: to send a bash command to every Raspberry-Pi (list stored in ```list.switch```) using ssh # Requirements ### ONOS requirements * git * zip * curl * unzip * python 2.7 * python 3 (needed by Bazel) * Bazel (minimum version : 0.27.0) ### ONOS * Version 2.2 * Developper Quick Start : https://wiki.onosproject.org/display/ONOS/Developer+Quick+Start ### Python ElasticTree app requirements * pip (package management) * Python packages : * networkx * matplolib * request * json Command: ```~$ pip install package``` # Clone the repository ``` ~$ git clone https://github.com/disnetlab/GreenSDN.git ``` # Run the appliction 1. Run ONOS controller and check default application Run: ``` ~$ cd onos ~/onos$ bazel run onos-local -- clean debugm ``` Check apps: ``` ~/onos$ ./tools/test/bin/onos localhost onosCLI@root > apps -a -s * 9 org.onosproject.hostprovider 2.2.0.SNAPSHOT Host Location Provider * 16 org.onosproject.optical-model 2.2.0.SNAPSHOT Optical Network Model * 38 org.onosproject.drivers 2.2.0.SNAPSHOT Default Drivers * 65 org.onosproject.lldpprovider 2.2.0.SNAPSHOT LLDP Link Provider * 66 org.onosproject.openflow-base 2.2.0.SNAPSHOT OpenFlow Base Provider * 67 org.onosproject.openflow 2.2.0.SNAPSHOT OpenFlow Provider Suite * 94 org.onosproject.gui2 2.2.0.SNAPSHOT ONOS GUI2 ``` If the list is not like this one, please add missing app with the following command: ``` app activate ``` 2. Run CLI and activate some onos application ``` ~/onos$ ./tools/test/bin/onos localhost onosCLI@root > app activate proxyarp onosCLI@root > app activate fwd ``` (proxyarp : for default path algo, fwd : for the host discovery - will be deactivated later) /!\ WARNING Without ```proxyarp``` default paths are not working ### Mininet simulation 3. Create network (mininet) 4 or 8 degree (```k```) and pingall ``` ~$ cd GreenSDN/mininet-simulation/ ~/GreenSDN/mininet-simulation$ sudo python fattree.py mininet > pingall ``` Example (4-fat-tree and no traffic generated) : ``` ~/GreenSDN/mininet-simulation$ sudo python fattree.py 4 notraffic ``` 4. Deactivate forwarding ONOS app using ONOS CLI ``` onosCLI@root > app deactivate fwd ``` 5. Create default path ``` ~$ cd GreenSDN/mininet-simulation/app/ ~/GreenSDN/mininet-simulation/app$ python defaultpath.py ``` 6. Run ElasticTree algo ``` ~$ cd GreenSDN/mininet-simulation/app/ python runElasticTree.py ``` ### Pi simulation 3. Pingall from the computer 1 ``` root@compute1~$ ./pingall ``` 4. Deactivate forwarding ONOS app using ONOS CLI ``` onosCLI@root > app deactivate fwd ``` 5. Create default path ``` ~$ cd GreenSDN/pi-simulation/app/ ~/GreenSDN/pi-simulation/app$ python defaultpath.py ``` 6. Run ElasticTree algo ``` ~$ cd GreenSDN/pi-simulation/app/ python runElasticTree.py ``` # Network topology Fat-tree topology ## Network IP adresses IP networks in a ```k=4``` fat-tree topology. The idea is the following : to create different sub-network depinding the position in the fat-tree topology. We decided to use ```10.0.0.0/8``` as network address. Then, each POD sub-network is identify throught the 8 following bits. The POD p is using the ```10.p.0.0/16``` network IP address. The next 8 bits are used to specify the number of the edge switch in the current POD, the IP address of this sub-network is : ```10.p.e.0/24```. Finally, the last 8 bits are used by the number of the host connected to the edge switch e: ```10.p.e.h``` ## Network default-path Flow rules for downward traffic match the IP destination and send the traffic to the corresponding port. Every layer of switches only matches a certain number of bits of the IP address, this number corresponds to the netmask of the following sub-net. The upward traffic is defined by: traffic that goes outside of the current sub-network. Here, only the source IP is used to balance the traffic on every links available. Once again, netmasks are used to reduced the number on flow rules. /!\ WARNING Higher priority (high number) matches FIRST ## Network Pi-tower

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