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1f544c96a5
The filter matrix (cls_bpf, the eBPF classifier) only ran on Docker veth host ends; the IOU and IOL-container scenarios now spot-check it on their TAP anchors and prove a filter survives a node restart: * bpf "icmp" drops everything with clsact on the anchor, both ends, and clears back to an empty qdisc; * frequency_drop 3 (the eBPF every-nth mode) measured 56 % round-trip loss (1 - (2/3)^2 = 55.6 % expected) in both scenarios; * the IOU test applies delay 100 before a router stop/start: the fresh anchor gets netem back (tc level) and the restarted router's pings measure RTT >= 150 ms until the filter is cleared (a re-attach that dropped the filter would show ~100 ms). IOU file 492 s, IOL file 182 s, both green.