F5 Application Layer SDN: Now with Extreme Programmability
Published Feb 11, 2013
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On distributed processing: the problem described in the post is if a switch does not have the intelligence to process application level traffic, it punts it to the controller and "... as an unintended consequence, the OpenFlow Controller has become a critical part of the data path – a job it was not designed to handle".
Absolutely true, but the fact the end point lacks intelligence to process the information is just bad design, not a problem with the model which calls for distributed processing.