nanog mailing list archives

RE: ISP customer assignments


From: "Brian Johnson" <bjohnson () drtel com>
Date: Fri, 16 Oct 2009 15:58:34 -0500

I actually think that CIDR is easier to understand than classful
addressing. Do the subject completely in binary. It makes complete sense
then.

- Brian

BTW: If the grad students don't get it, fail them! I don't want an
engineer who can't grasp basic binary math.


-----Original Message-----
From: Daniel Golding [mailto:dgolding () t1r com]
Sent: Friday, October 16, 2009 3:51 PM
To: Joe Abley
Cc: NANOG
Subject: Re: ISP customer assignments


The big problem here is that CIDR is tough to teach, even to
engineering students. This seems bizarre and counterintuitive, but its
true. I know this because I've done it. Its really easy to teach
classful addressing, on the other hand. Other problems include the
issue that many of the folks teaching have never had to use CIDR in
real life, textbook age, and, in some cases, lack of mathematical
preparation and inclination on the part of students.

Scarier: I was teaching graduate students.

- Dan



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