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The 50-Year-Old Mystery of Internet Packet Size

2025-04-18

This article delves into the enduring question of optimal internet packet size. From RFC 791's initial suggestion of 576 octets to today's default of 20-1500 octets, packet size has been a key trade-off in network design. Tracing the evolution of Ethernet, it explains the relationship between minimum packet size and collision detection, and the balance between maximum packet size and transmission efficiency. Jumbo frames and Path MTU discovery are also discussed, concluding that 46-1500 octets remains a reasonable range for the public internet, a choice that has persisted for nearly 50 years.

IPv4 Exhaustion and the Slow Rollout of IPv6: A 2024 Retrospective

2025-01-12

In 2024, the internet's IPv4 address pool continued to shrink, while IPv6 adoption remained sluggish. This article analyzes IPv4 address allocation data, revealing that the address trading market hasn't effectively recycled unused addresses, leading to volatile pricing. Meanwhile, IPv6 deployment, while growing, falls short of expectations and shows regional disparities. The author predicts a future of highly fragmented internet, with IPv6 adoption being a key factor. The piece delves into technical, economic, and policy aspects impacting internet development and offers insightful future projections.