Hi- I am trying to figure out if there would be a packet order issue with the current version of OVS. Consider a case where a controller has added a forwarding rule for a specific flow (Flow A) and this rule is not yet installed in the DP. In this scenario, it is conceivable that certain (bursty) traffic patterns on Flow A can result in the packets being sent out of order. E.g. consider an initial burst of 5 packets that miss the kernel flow table, followed by several subsequent packets arriving at random intervals. As soon as the userspace processes the flow miss, it will install a rule in the kernel. Depending on the relative timing of the rule installation, any of these subsequent packets could get switched directly by the kernel before the previous packets that took the slow path could get forwarded. I couldn't find any special handling to cover this case. Most likely it is already handled and I am just missing the part where it is done. Could anyone clarify this for me?
Thanks, Joji
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