Hi, I am aware of the previous studies by Rexford et al. on Routing Control Platforms and also more recent proposed work such as the Router Flow Control Platform (Hot SDNs 2012).
Assuming that we may have multiple OpenFlow networks that are controlled by different controllers, what I wanted to know is that how two different OpenFlow networks connect and interact with each other (is there any automated protocols that allows routing between them)? By the way I am not talking about the idea of having one hierarchical controllers (such as Kandoo) or managing different controllers to have the same global view of the network (such as Hyperflow). Bests -- Seyed Hossein Mortazavi
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