Fuzzball router

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Fuzzball routers were the first modern routers on the Internet. They were DEC LSI-11 computers loaded with router software written by David L. Mills (of the University of Delaware). The name "Fuzzball" was the colloquialism for Mills' routing software. About fifty of them were deployed worldwide in the early 1980s to test many of the Internet's first protocols. A few are still active on the internet today.