I've got to agree with Brian, especially in an ISP environment, why
would anyone hire or keep someone who couldn't grasp the concept of
CIDR? You certainly wouldn't want to have them maintaining a core
router with lots of v4 routes, since router-router links are almost
always numbered in subnets as small as logic dictates.
On 10/16/2009 01:58 PM, Brian Johnson wrote:
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:dgold...@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
--
Walter Keen
Network Technician
Rainier Connect
(o) 360-832-4024
(c) 253-302-0194
