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Over (Software defined network) what will happen when unknown Ethernet hits the first switch, using 4 OF switch and 8 host.

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  • off in the weeds Commented Nov 29, 2016 at 4:22
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    Commented Aug 15, 2017 at 5:42

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If by Ethernet, you mean Ethernet 'frames' then that packet is sent to the Controller. The Controller then instructs the Switch about packet modification and actions for output port. Alternatively, the Switch may just send a 'pointer' to the packet rather than sending the whole packet to the Controller.

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