June 2017
Intermediate to advanced
446 pages
10h 10m
English
Content preview from Mastering Python Networking
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The Ryu controller with Python
Ryu is a component-based SDN controller fully written in Python. It is a project backed by Nippon Telegraph and Telephone (NTT) Labs. The project has Japanese roots; Ryu means "flow" in Japanese and is pronounced "ree-yooh" in English, which matches well with the OpenFlow objective of programming flow in network devices. By being component based, the Ryu framework breaks the software it uses into individual portions that can be taken in part or as a whole. For example, on your virtual machine, under /home/ubuntu/ryu/ryu, you can see several folders, including app, base, and ofproto:
ubuntu@sdnhubvm:~/ryu/ryu[00:04] (master)$ pwd /home/ubuntu/ryu/ryuubuntu@sdnhubvm:~/ryu/ryu[00:05] (master)$ ls app/ cmd/ exception.pyc ...
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