Sorry, yes, you're right - the latency overhead is not negligible (as a percentage, though in absolute terms it seems pretty tolerable). Is this added latency

Sorry, yes, you're right - the latency overhead is not negligible (as a percentage, though in absolute terms it seems pretty tolerable). Is this added latency just VXLAN overhead, or is flannel userspace still involved in per-packet-processing? I'd love to see a test comparing flannel/VXLAN to a manually configured VXLAN tunnel. (I'm off to read the flannel code...)