Setup

In this chapter, we will continue to use the same http://sdnhub.org/ all-in-one virtual machine from the last chapter. The Ryu install on the VM was a few releases behind the current one, so it was fine for a start, but we want to use the latest BGP speaker library and examples for this chapter. The latest version also supports OpenFlow 1.5 if you would like to experiment with it. Therefore, let's download the latest version and install from source:

 $ mkdir ryu_latest
 $ cd ryu_latest/
 $ git clone https://github.com/osrg/ryu.git
 $ cd ryu/
 $ sudo python setup.py install

 # Verification:

 $ ls /usr/local/bin/ryu*
 /usr/local/bin/ryu* /usr/local/bin/ryu-manager*
 $ ryu-manager --version
 ryu-manager 4.13

Note

Officially, Ryu supports Python 3.4 and beyond. It is my opinion that most of the existing applications and user communities still have been using Python 2.7. This directly translates to supportability and knowledge base; therefore, I have decided to stick with Python 2.7 when...