EE555 - Broadband Network Architecture - Final Project

An implementation of Openflow using Mininet and Pox

Authors: Guozhou Wu and Spencer McDonough

Setup

Follow these instructions to install the required software.

Install VirtualBox or your favorite VM software NOTE: Linux users can run sudo apt-get install virtualbox because Linux rules.

Follow these instructions to configure VM manager such that you can communicate with your Mininet VM. NOTE: Linux users will find they can run this application on their host machine. We don't recommend this, as isolating experimental environments from your own is always good practice. But if you insist (and know what you are doing) then you can find the instructions to do this in the tutorials above.

Connecting to OpenFlow VM

Step 1: Start your Mininet Ubuntu VM and log in Login: mininet Password: mininet Step 1a: Run ifconfig to get your URL for SSHing into the VM from your host machine. Step 1b: Run sudo dhclient to enable the NAT forwarding port on your VM to connect to the internet.

Step 2: Establish 2 separate connections to the VM

# Connection 1: Mininet Console
ssh -X mininet@<your VM IP>

# Connection 2: Controller Console
ssh mininet@<your VM IP>
sudo dhclient # enables DHCP through the NAT connection you have provided your VM

Replace Mininet and Pox

From either terminal you have used to connect to the VM (or from the VM itself)

cd ~/mininet
git remote set-url origin https://github.com/smcd253/mininet.git
git checkout master
git pull

cd ~/pox
git remote set-url origin https://github.com/smcd253/pox.git
git checkout dev
git pull

Scenario 1

Compilation and Run Instructions

Step 1 (Controller Console): Run The controller script in the controller console

cd pox
./pox.py log.level --DEBUG misc.controller_1

Step 2 (Mininet Console): Run mininet in the mininet console

sudo mn --custom ~/mininet/custom/topology_1.py  --topo mytopo --mac --controller remote

Step 3 (Mininet Console): Evaluate Ping and Iperf

# ping other hosts
h1 ping h2
pingall
# test tcp throughput
iperf h1 h2

Scenario 2

Compilation and Run Instructions

Step 1 (Controller Console): Run The controller script in the controller console

cd pox
./pox.py log.level --DEBUG misc.controller_2

Step 2 (Mininet Console): Run mininet in the mininet console

sudo mn --custom ~/mininet/custom/topology_2.py --topo mytopo --mac --controller remote

Step 3 (Mininet Console): Evaluate Ping and Iperf

# ping other hosts
h1 ping h2
pingall
# ping interfaces
h1 ping 10.0.0.1
h1 ping 20.0.0.1
h1 ping 30.0.0.1
# ping invalid IPs (destination unreachable)
h1 ping 8.8.8.8
# test tcp throughput
iperf h1 h2

Scenario 3

Compilation and Run Instructions

• Step 1 (Controller Console): Run The controller script in the controller console

cd pox
./pox.py log.level --DEBUG misc.controller_3

• Step 2 (Mininet Console): Run mininet in the mininet console

sudo mn --custom ~/mininet/custom/topology_3.py --topo mytopo --mac --controller remote

• Step 3 (Mininet Console): Evaluate Ping and Iperf

# ping other hosts
h9 ping h10
h9 ping h12
h9 ping h15
h9 ping h18
h9 ping h21
pingall
# ping interfaces
h9 ping 172.17.16.1
h9 ping 10.0.0.1
h9 ping 10.0.0.129
h9 ping 20.0.0.1
h9 ping 20.0.0.129
# ping invalid IPs (destination unreachable)
h9 ping 8.8.8.8
h12 ping 8.8.8.8
h21 ping 8.8.8.8
# test tcp throughput
iperf h9 h12
iperf h9 h15
iperf h9 h18
iperf h9 h21

Custom Framework

We created the following files for this framework: topology_1.py topology_2.py topology_3.py controller_1.py controller_2.py controller_3.py switch.py router.py