This is an implementation of a very simple switch using libfluid .
It is built on top of BaseOFClient (which is analogous to fluid_base::BaseOFServer). This code (which is in the client directory) was not included in libfluid_base because it was not considered mature enough, but it will be, eventually.
There's a Makefile in the client folder for compiling a client that just establishes and keeps a connection to an OpenFlow controller. You need to extend it to do anything useful.
Along with the libfluid library requisites you will also need to install the pcap library with development headers.
On Ubuntu 12.04:
After installing all dependencies, build the switch:
This example uses the new, IANA-defined OpenFlow port: 6653 instead of the previous, non-standard default (6633).
To run the switch you need to list the interfaces that will be used as OpenFlow ports. As the switch does not create interfaces, the names given to the command should be those of existent interfaces that can be put on promiscuous mode.
Start the switch with the interfaces for the ports. As interfaces will be set to promiscuous the command needs to be run as root:
Optionally, it is possible to specify the switch datapath ID. If you don't, a random one will be generated for you.
The switch passes on a few basic OFTest cases, demonstrating basic functionality.
To start the environment, run the script run_switch.py. It will create the virtual interfaces expected by OFTest and run the switch with the created ports:
Then go to the OFTest directory and run the basic tests:
It is possible to use this switch in Mininet. Replace the Mininet file mininet/bin/mn and mininet/mininet/node.py with the ones in the MininetFiles.
Install Mininet again:
Now, build and install the switch so that Mininet can find it:
And start Mininet:
The switch functionality is enough to run a simple learning switch application, like the one present in the controller example or the POX l2_forwarding application.
