OpenFlow controller programmer does not have any method to confirm how reflected their code to the flow control, directly and intuitively
“This code, how does work on... which flow?”
“This flow, which code does make it?”
This slides shows the basic design of the mechanism for binding code and flow to see them.
It enables cross referencing logic and flow each other and also enable tracing the flow over switches.
It had been presented at the 16th IOT conference of IPSJ, March 2012.