On Fri, Dec 01, 2017 at 11:57:22AM -0500, Fouad Hallal wrote: > I have tested OVS patch ports functionality in a simple 3 bridges network > by using Mininet custom topology. I configured macro flows by cross > connecting the different bridge ports. Packets passed between the > different bridges and I was able to confirm by inspecting OVS flows > counters. > > I have been looking for documentation about OVS implementation of patch > ports. Specifically, I need to learn about the metadata that is passed > between the different bridges as packets proceed from one bridge to > another. Is their a data structure (other than the skb) that is passed > along? Are the input ports and output ports values, that a given packet > traversed for different bridges, kept around through the life of the > packet? Any pointers are much appreciated.
Traversing a patch port is supposed to be analogous to traversing a veth. The same fields should be preserved. This is similar to traversing a physical Ethernet cable from port to port, except that one or two metadata fields should be preserved; skb_priority is the one that comes to mind. The input port isn't preserved; it changes to the patch port. Output port isn't usually a field. _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
