OpenFlow 1.2 Software Switch

This is an OpenFlow 1.2 compatible user-space software switch implementation. The code is based on the Ericsson TrafficLab 1.1 softswitch implementation, with changes in the forwarding plane to support OpenFlow 1.2.

The following components are available in the release:

• ofdatapath: the switch implementation
• ofprotocol: secure channel for connecting the switch to the controller
• oflib: a library for converting to/from 1.2 wire format
• dpctl: a tool for configuring the switch from the console

Getting Started

Pre-Building

The software switch makes use of the Netbee library to parse packets, therefore library files needed to build
the switch.

To compile Netbee on your system your
system you need to install the following packages:

$ sudo apt-get install cmake libpcap-dev libxerces-c2-dev libpcre3-dev flex bison  

Download the source code on http://www.nbee.org/download/nbeesrc-12-05-16.php

Create the build system

$ cd nbeesrc/src  
$ cmake.

Compile

$ make

Add the shared libraries built in /nbeesrc/bin/ to your /usr/local/lib directory.

$ sudo cp nbeesrc/bin/libn*.so /usr/local/lib

Run ldconfig:

$ sudo ldconfig

Put the folder nbeesrc/include in the /usr/include:

$ sudo cp -R nbeesrc/include /usr/include

Building

To build, run the following commands in the of12softswitch directory:

$ ./boot.sh
$ ./configure
$ make
$ sudo make install

Running

Start the datapath:

$ sudo udatapath/ofdatapath --datapath-id=<dpid> --interfaces=<if-list> ptcp:<port>

This will start the datapath, with the given datapath id, and interace list, opening a passive tcp connection on the given port. For a complete list of options, use the --help argument.

Start the secure channel:

$ secchan/ofprotocol tcp:<switch-host>:<switch-port> tcp:<ctrl-host>:<ctrl-port>

This will open TCP connections to both the switch and the controller, relaying OpenFlow protocol messages between the two. For a complete list of options, use the --help argument.

You can send requests to the switch using the dpctl utility:

$ cd utilities
$ ./dpctl tcp:<switch-host>:<switch-port> stats-flow table=0

For a complete list of commands and arguments, use the --help argument.

Contribute

Please submit your bug reports, fixes and suggestions as pull requests on github, or by contacting us directly.

License

OpenFlow 1.2 Software Switch is released under the BSD license (BSD-like for code from the original Stanford switch).

Contact

E-mail: Eder Leao Fernandes (ederlf@cpqd.com.br)