OpenFlow has a virtual port for the controller (OFPP_CONTROLLER).  If you add 
an output action to your entry which specifies it as the output port, packets 
hitting the entry will be sent to the controller (similar as to when there's a 
table miss).  If you don't do this, packets hitting the entry won't be sent to 
the controller.

-- Murphy

On Jul 16, 2015, at 12:47 AM, nor masri sahri <masri.sa...@gmail.com> wrote:

> hi everyone, is there any mechanism in openflow that  after flow entry has 
> been installed, whenever packet that match the entry has the ability to 
> notify/not to notify the controller? (switch to controller message)
> thanks.
> 
> -- 
> Regards,
> 
> masri.sahri
> 
> _______________________________________________
> openflow-discuss mailing list
> openflow-discuss@lists.stanford.edu
> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss

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