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frr
3 posts64 BFD sessions at 10ms saturate FRR bfdd's core; XDP handles it at 0 flaps
FRR's bfdd saturates one core at 64 BFD sessions while an XDP fast path carries the same load at 751ns/packet with zero flaps; three FRR bugs merged upstream.
XDP BFD Integrates with Stock FRR, Eliminates Flaps Under Stress
XDP-based BFD now integrates with stock FRR bfdd, cutting flaps to zero under stress and uncovering upstream FRR and kernel bugs along the way.
bfdd vs XDP-based BFD Fast Path Under CPU Stress: 44 vs 0 Flaps
Under CPU stress, FRR's bfdd flapped 44 times in 120 seconds while an XDP-based BFD fast path stayed at zero flaps, matching line-card-level reliability.
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