June 2017
Intermediate to advanced
446 pages
10h 10m
English
Content preview from Mastering Python Networking
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Advanced OpenFlow Topics
In the previous chapter, we looked at some of the basic concepts of OpenFlow, Mininet, and the Ryu controller. We proceeded to dissect and construct an OpenFlow switch in order to understand Ryu's framework as well as looking at one of Ryu's firewall applications as a reference for the API interface. For the same Mininet network, we were able to switch between a simple switch and a firewall by just replacing one software application with another. Ryu provides Python modules to abstract basic operations such as switch feature negotiation, packet parsing, OpenFlow message constructs, and many more. This allows us to focus on the networking logic of our application. Since Ryu was written in Python, the application code ...
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