[ovs-dev] Add field to packet_out

[Amine Amine]

Hi,

I'm new to OVS and I want to send a hash value from a Floodlight controller
to an OVS switch via packet_out, and include this value to forward it to
the next switch.

Could you please show me where to make the necessary changes?
Also if there's a good intro to openflow developpement, could please point
me to it?

PS : I'm using openvswitch-2.3.0

Thanks in advance.