[37563] in North American Network Operators' Group
Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS
daemon@ATHENA.MIT.EDU (Stephen Griffin)
Tue May 15 18:19:04 2001
Message-Id: <200105152214.SAA00180@elektra.ultra.net>
In-Reply-To: <0c7401c0dcb6$8d905960$f9394a40@compuhelp.com> from Hunter Pine at "May 14, 2001 04:43:38 pm"
To: hunter@compuhelp.com (Hunter Pine)
Date: Tue, 15 May 2001 18:14:11 -0400 (EDT)
From: Stephen Griffin <stephen.griffin@rcn.com>
Cc: nanog@nanog.org
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In the referenced message, Hunter Pine said:
>
> Larger - ARIN refers to netblocks by subnet mask bit length. So a /30 is
> larger than a /29.
>
> It took me a while to figure this out myself while reading their docs. I
> guess whenever referring to ARIN, I use the backwards method when comparing
> netblocks to keep myself at least partially sane. :)
I have most commonly seen networks referred to in terms of size
(larger/smaller), and prefixes in terms of length (longer/shorter).
Therefore, a larger network has a shorter prefix-length, and a smaller
network has a longer prefix-length.
IIRC, ARIN makes all references as to prefix-length in this manner.
