Schneier’s Law Applied to Networking

A while ago I stumbled upon Schneier’s law (must-read):

Any person can invent a security system so clever that she or he can't think of how to break it.

I’m pretty sure there’s a networking equivalent:

Any person can create a clever network design that is so complex that she or he can't figure out how it will fail in production.

I know I’ve been there with my early OSPF network designs.


  1. “Simplicity is a great virtue but it requires hard work to achieve it and education to appreciate it. And to make matters worse: complexity sells better.”
    ― Edsger W. Dijkstra, which is a pleasing example of cosmic symmetry as his famous algorithm was about computing shortest paths.
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