this post was submitted on 11 Jul 2025
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    Any more? (lemmy.dbzer0.com)
    submitted 2 days ago by [email protected] to c/[email protected]
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    [–] [email protected] 7 points 1 day ago (1 children)

    Technically it fits inside the highest class-A subnet... but I've seen so many people (especially teachers) who think that class-A and /8 subnets are equivalent that I firmly believe that the idea of classful networking should be removed from technical literature altogether.

    [–] [email protected] 14 points 1 day ago

    Classful IPv4 was obsoleted 32 years ago. Only 8 years left before it's literally older than a standard career.

    It's fascinating the sheer inertia that leads formally-trained IT professionals to use and perpetuate such profoundly useless and obsolete nomenclature. You'd think that having an incorrect use of the term "class A" and not having any use for classes B and C would tip off academia that they should cordon off classful networking to the "History of Computing" course next to ARPANET.

    Maybe next time someone refers to 10.0.0.0/8 as a Class A network I'll refer to it as the ARPANET Network. That's only very slightly more anachronistic (3 years).