On Tue, Jul 10, 2012 at 09:23:05AM -0400, Ed Maste wrote: > >> It isn't clear to me though why the Linux userspace mode does not behave > >> the same way though. I had a (very) brief look at the way PF_PACKET is > >> handled in Linux and it seemed like the packet would still be passed up > >> the stack -- there must be something else that I'm missing. > > > > Linux appears to have a special case such that a packet will never be > > delivered back to the socket from which it originates via the network > > tap interface, see dev_queue_xmit_nit() in net/core/dev.c: > > That looks to me like it should address the transmit case, avoiding > duplicate handling of a packet transmitted by Open vSwitch - I don't > see how the receive case (from the physical network) is handled.
Probably there's just a bug there. The userspace version isn't the primary way to use Open vSwitch with a Linux kernel so it gets little testing. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
