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Engineering Blog

Deep dives into cloud network architecture, Kubernetes egress routing, eBPF CNI telemetry, and cost attribution math.

AUGUST 12, 2026 • 8 MIN READ • CLOUD COST ARCHITECTURE

Why AWS NAT Gateways Are a $0.045/GB Tax (And How GressTrace Attributes It)

NAT Gateways process out-of-band traffic silently. Here is how uncompressed pod traffic and cross-AZ routing bleed cloud budgets, and how pod-level telemetry attribution stops it.

COMING SOON • EBPF TELEMETRY

eBPF vs OpenCost: Passive Kernel Flow Tracking in Kubernetes

A comparative benchmark of socket-level eBPF CNI hooks versus Prometheus OpenCost allocation scraping for microservice network attribution.

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