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This article explores Cloudflare's attempts to enhance the Linux networking stack, particularly through their soft-unicast method for sharing IP addresses. It details the technical hurdles faced with socket binding and NAT, and how the team developed innovative solutions like using TCP Fast Open to streamline connection management.
This article explores the characteristics of TCP connections across Cloudflare's global CDN, focusing on metrics like packet counts and response behaviors. It highlights the challenges of measuring network connections at scale and presents data that reveals patterns in Internet traffic, including the distribution of small and large flows.