Okay. How does the OVS datapath know this is a new flow? i.e. there is no matching flow entry? Doesn't it derive some sort of an index (into the flow table) from packet header fields? What am I missing? :)
If this is explained in details somewhere, I would appreciate the pointer. Thanks, ashok On Tue, Jan 6, 2015 at 1:43 PM, Ben Pfaff <[email protected]> wrote: > On Tue, Jan 06, 2015 at 11:01:08AM -0800, Ashok Chippa wrote: > > Perhaps once you understand, it will make sense? :) > > > > Call it whatever flow_id or cookie or xyz? Let me call it "flow index" > for > > the sake of this discussion. The ovs datapath has some sort of a flow > index > > to look into the flow table when a packet arrives, right? Now, how does > the > > ovs datapath arrive at this flow index (upon a packet arrival)? It takes > > certain match parameters (from the packet header and perhaps some > > metadata) and hashes them, right? > > I don't think you understand how the OVS datapath works. >
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