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Ryu is a component-based software defined networking framework.

Ryu provides software components with well defined API that make iteasy for developers to create new network management and controlapplications. Ryu supports various protocols for managing networkdevices, such as OpenFlow, Netconf, OF-config, etc. About OpenFlow,Ryu supports fully 1.0, 1.2, 1.3, 1.4 and Nicira Extensions.

All of the code is freely available under the Apache 2.0 license. Ryuis fully written in Python.

Installing Ryu is quite easy:

% pip install ryu

If you prefer to install Ryu from the source code:

% git clone git://github.com/osrg/ryu.git% cd ryu; python ./setup.py install

If you want to use Ryu withOpenStack,please referdetailed documents.You can create tens of thousands of isolated virtual networks withoutusing VLAN. The Ryu application is included in OpenStack mainline asof Essex release.

If you want to write your Ryu application, have a look atWriting ryu application document.After writing your application, just type:

% ryu-manager yourapp.py

Ryu Official site ishttp://osrg.github.io/ryu/.

If you have anyquestions, suggestions, and patches, the mailing list is available atryu-devel ML.The ML archive at Gmaneis also available.