Why Your 10Gbps Link Stalls at Hotel Wi-Fi Speeds

When 10Gbps networks mysteriously stall at 1Gbps, the culprit is rarely the hardware—it's kernel buffer settings designed for dial-up era light browsing. This silent packet loss impacts databases, Kafka clusters, financial systems, and any infrastructure relying on sustained high-speed throughput. Properly tuning three kernel queues—NIC ring buffers, netdev_max_backlog, and socket buffers—is now essential for modern infrastructure.