[ovs-dev] [PATCH 2/2] ofproto: Do not delete datapath flows on exit by default

[txfh2007]

Hi Ben:
 
    I have read your patch about "not delete datapath flow when daemon exit". I think this patch is really important, It can be used during upgrading without effecting existing traffic. I have test in my env, and found it works! Thanks a lot ! 
    But I have a question about tunnel traffic: I have found if there're vxlan traffic across compute nodes, when daemon exit, the traffic would breakdown. The reason is during "close_dpif_backer"  we would delete tunnel port in datapath, so even if the flows are not delete , but as the tunnel port is deleted , flow action turns to be "drop". So i write this mail to ask if we can add a flag to control this behavior ?

Thanks
Timo