#networking

In-depth engineering analysis: Modern HTTP/3 and QUIC transport: UDP packet pacing and congestion control. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: TCP BBR v3 implementation details: packet pacing, inflight estimation and fair competition with CUBIC. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: Linux TCP window scaling and socket buffer auto-tuning. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: Replacing aging HAProxy setups with lightweight modern proxies supporting dynamic service discovery. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: Linux network namespace veth pair latency overhead analysis. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: TCP BBR vs CUBIC throughput benchmarks on transatlantic lossy links with 2% packet loss. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: Migrating from iptables-legacy to nftables on a 40G edge router. Practical diagnostics, logs and production configuration.

In-depth engineering analysis: Silent network packet drops: NIC RX ring buffer exhaustion under traffic microbursts. Practical diagnostics, logs and production configuration.

How short-lived inter-service HTTP calls exhausted ephemeral ports and triggered cascading 500 errors.

How omitting keepalive pools towards backends results in ephemeral port exhaustion, TIME_WAIT socket buildup, and a 4x latency penalty at high load.