Mininet - Setup and usage

I. setup

1. Make sure your machine is kvm enabled - e.g. cpu-checker's kvm-ok command should return a response like this:

   # kvm-ok
   INFO: /dev/kvm exists
   KVM acceleration can be used
   

2. Install kvm/qemu packages.

   # apt-get update
   # apt-get install qemu-kvm unzip 
   

3. fetch the mininet image. The current one can be downloaded from ​here. Unzipping the package should produce one file, OpenFlowTutorial-disk1.vdi.
4. Launch qemu:

   # qemu -m 512 -hda OpenFlowTutorial-disk1.vdi -net nic,model=virtio -net user,net=192.168.101.0/24,hostfwd=tcp::8022-:22
   

Given that you have X11 forwarding enabled for your SSH session, a window should pop up and you should see the image boot.
At this point you have the choice of logging in on that window, or via SSH as follows:

# ssh -Y -p 8022 openflow@localhost

In either case, both user and password are openflow.