In addition we take advantage of a special Mininet link class called 'TCLink'. we create a bit more complicated network with two switches and three hosts.

Script ExMNsimple.py for generating a custom topology Interactive Python shell to create a custom Mininet topology and run ping The python shell, i.e., use the Linux command sudo python to start yourĪs an example you can enter the code in Code Example 1, a line at a time into an Trip delays (ping) and throughput (iperf) in Mininet. Here we finally program all those virtual switches based on calculatedįorwarding tables and see the effects of different routing policies via round Programming switches: First steps with Ryu or POX Here we go over one approach to working with network graphs in Python and giveĮxamples of shortest, widest, and arbitrary destination tree based forwarding We give some tips and examples of how to do this. Of its power and configurability you can work with it directly from the Python You can do a fair amount with Mininet from the command line, but to get at more To run VMs on my Windows laptop, hence in the first section I give some extra Laptop, you'll want to run Mininet in a virtual machine (VM). For isolation purposes, inĬase your emulated network runs amok, or if you don't run Linux directly on your On a modern version of the Linux operating system. The folks over at Mininet have figured out a very nice way to emulate networks If you have questions or comments send anĪ Virtual Machine for our Emulated Network Mininet/SDN emulations more in future networking courses I teach. Laptop and provide examples of programming SDNs. These notes contain tips for setting up an SDN testbed on your Getting hands on with SDNs makes this point clear and teaches many other lessons Plane, i.e., the basic learning bridge 'algorithm'.

The difference between control and data planes doesn't get emphasized enough.įor example how many students realize that a basic Ethernet switch has a control Teaching networking, particularly Ethernet and IP technologies, I can see where Networks (SDNs) may not seem like such a big deal. Such as MPLS, optical switching, or GMPLS, then concepts behind software defined

If you've worked with a number of non-IP and non-Ethernet networking technologies

Mininet wireshark command line mode