Of11softswitch

OpenFlow 1.1 Software Switch

This is an OpenFlow 1.1 [1] compatible user-space software switch implementation. The code is based on the original Stanford 1.0.0 reference switch [2], with the forwarding plane being completely rewritten to support OpenFlow 1.1. The implementation is feature-complete, and passes the available oftest 1.1 test cases [3].

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 1.1 wire format
• dpctl: a tool for configuring the switch from the console

[1] http://www.openflow.org/documents/openflow-spec-v1.1.0.pdf [2] http://yuba.stanford.edu/git/gitweb.cgi?p=openflow.git;a=tree;h=7f09f6a88d86883b516c99eb4058402eb07e5fd0;hb=d90824f0e8c3b6606d04e5a8813f03e89a6d0894 [3] https://github.com/TrafficLab/oftest11

Getting Started

To build, run the following commands in the of11softswitch directory:

./boot.sh
./configure
make

To start the datapath, run the following commands:

cd udatapath
sudo ./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.

To start the secure channel, run the following commands:

cd 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, and consult the dpctl.h file [1].

[1] https://github.com/TrafficLab/of11softswitch/blob/master/utilities/dpctl.h

Contribute

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

License

OpenFlow 1.1 Software Switch is released under the BSD license (BSD-like for code from the original Stanford switch).

References

[1] OpenFlow: http://www.openflow.org/ [2] ONF: http://www.opennetworkingfoundation.org/

Contact

E-mail: Zoltan Lajos Kis (zoltan.lajos.kis@ericsson.com)

Wiki: https://openflow.stanford.edu/display/of11softswitch Repo: https://github.com/TrafficLab/of11softswitch