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Re: ISP customer assignments
- From: Joe Abley
- Date: Tue Oct 13 08:15:25 2009
On 2009-10-13, at 08:05, Scott Morris wrote:
While I may agree that teaching classful routing is stupid, the
addressing part lets people start getting the concept of binary.
That's true of classless addressing, too. When students have problems
with non-octet bit boundaries, that just means you start with mask
lengths that are multiples of 8.
While
I'd love to think that people coming out of the school system have a
grasp of simple mathematical skills, more and more I'm finding that's
not the case. I wouldn't spend a LOT of time with it, and I
certainly
wouldn't LEAVE at classful addressing, but it's a foundational step.
Why is the presumption faulty?
You were suggesting that classful addressing is reasonable to teach
because it's simpler. It's not simpler, and in a modern-day context
it's just wrong.
Joe
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