If h1 and h2 are connected through a switch as shown in the python code in the Mininet walkthrough, the ping will transit multiple virtual interface pairs. So when we run ping between the linux namespaces h1 and h2, the ping will run from h1s namespace through a virtual interface pair created for h1 and h2, before it reaches h2. It accomplishes this task by creating host namespaces (h1, h2, etc) and connecting them through virtual interfaces. Mininet is a software stack that creates a virtual network on your computer/laptop. OpenFlow has emerged as the de facto SDN standard and specifies how the controller and the switches communicate as well as the rules controllers install on switches. The controller acts as the 'brain' of the network, and sends commands ('rules') to the switches on how to handle traffic. The SDN control plane is implemented by the 'controller' and the data plane by 'switches'. In traditional networks, both the control- and data planes are tightly integrated and implemented in the forwarding devices that comprise a network. One can think of the control plane as being the networks 'brain', i.e., it is responsible for making all decisions, for example, how to forward data, while the data plane is what actually moves the data. Software-Defined Networking (SDN) is a recently proposed networking paradigm in which the data and control planes are decoupled from one another. Software Defined Networking and Open Flow View this refresher on how to work with the Mininet environment and the official documentation of Mininet Python API. Backgroundįor general background on Bufferbloat, look at the following article: BufferBloat: What's Wrong with the Internet?. Then, you will generate experiment results using the framework, and answer the questions listed later in this document.

First, you need to complete the TODO fields in the skeleton code of our experiment framework.

In this project, we will use Mininet to study the dynamics of TCP and the bufferbloat phenomenon.

How to use virtualbox sing mininet