Metadata is always 0 at the point that a packet enters the OpenFlow pipeline, so there's no need for the datapath to match on it--it would always be a match against 0.
On Tue, Aug 26, 2014 at 01:44:56PM -0600, Junguk Cho wrote: > Oh, really? > > Basically, what I understood is datapath keeps some tables based on "struct > sw_flow_key" and used it for evaluating if incoming packet is matched or > not. > > Is it right or do I miss something? > If I miss something, can you forward me to metadata matching in datapath? > > Thanks, > Junguk > > > 2014-08-26 13:40 GMT-06:00 Ben Pfaff <b...@nicira.com>: > > > On Tue, Aug 26, 2014 at 01:36:04PM -0600, Junguk Cho wrote: > > > Hi, I have a simple question. > > > When we use metadata as flow-rule, > > > Does all traffic forward ofproto to match it because there is no match > > > field in "struct sw_flow" in datapath? > > > > No, metadata matching still allows for kernel forwarding. There's no > > need to send every packet to userspace. > > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
