On Datapath Join do not delete all flows on the switch

[ajragusa]

Hi Guys

We would like to request a new feature addition, which allows for us to configure flowvisor so that when a switch connects Flowvisor does not delete all flows on the switch.

For example OESS does a diff of flows on the switch, and what OESS thinks should be on the switch when it connects, so that we do not interrupt traffic.

If you have further questions please let me know.

Thanks A.J. Ragusa