Building and Scaling the Fastly Network, Part 1: Fighting the FIB

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This post is the first in a series detailing the evolution of network software at Fastly. We’re unique amongst our peers in that from inception, we’ve always viewed networking as an integral part of our product rather than a cost center. We rarely share what we do with the wider networking community however, in part because we borrow far more from classic systems theory than contemporary networking practice.

Building abstractions

Before delving further, it is important to disambiguate that while we write software for networks, we shy away from using the term software-defined networking (SDN) to describe what we do.

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