nanog mailing list archives
Re: ISP customer assignments
From: Walter Keen <walter.keen () rainierconnect net>
Date: Fri, 16 Oct 2009 14:02:13 -0700
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: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
-- Walter Keen Network Technician Rainier Connect (o) 360-832-4024 (c) 253-302-0194
Current thread:
- Re: ISP customer assignments, (continued)
- Re: ISP customer assignments Mark Newton (Oct 12)
- Re: ISP customer assignments Scott Morris (Oct 13)
- Re: ISP customer assignments Joe Abley (Oct 13)
- Re: ISP customer assignments Scott Morris (Oct 13)
- Re: ISP customer assignments Joe Abley (Oct 13)
- Re: ISP customer assignments Scott Morris (Oct 13)
- Re: ISP customer assignments John Kristoff (Oct 13)
- Re: ISP customer assignments TJ (Oct 13)
- Re: ISP customer assignments Daniel Golding (Oct 16)
- RE: ISP customer assignments Brian Johnson (Oct 16)
- Re: ISP customer assignments Walter Keen (Oct 16)
- Re: ISP customer assignments Owen DeLong (Oct 16)
- Re: ISP customer assignments - and CIDR James R. Cutler (Oct 16)
- Re: ISP customer assignments Valdis . Kletnieks (Oct 13)
- Re: ISP customer assignments Mark Smith (Oct 13)
- Re: ISP customer assignments Matthew Petach (Oct 13)
- Re: ISP customer assignments Joe Abley (Oct 13)
- Re: ISP customer assignments Marco Hogewoning (Oct 13)
- Re: ISP customer assignments Scott Morris (Oct 13)
- Re: ISP customer assignments Michael Dillon (Oct 13)
- Re: ISP customer assignments Chris Adams (Oct 13)