[178633] in North American Network Operators' Group
Re: Verizon Policy Statement on Net Neutrality
daemon@ATHENA.MIT.EDU (Owen DeLong)
Sun Mar 1 16:30:08 2015
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <54F33AB5.3040208@foobar.org>
Date: Sun, 1 Mar 2015 13:26:51 -0800
To: Nick Hilliard <nick@foobar.org>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
>> It was the combination of asymmetric, no or few IPs (and NAT), and
>> bandwidth caps.
>=20
> let's not rewrite history here: IPv4 address scarcity has been a thing
> since the very early 1990s. Otherwise why would cidr have been =
created?
CIDR had nothing to do with address scarcity. CIDR was invented for =
routing
table slot scarcity in Cisco AGS hardware of the era.
Routers running out of BGP table space wasn=92t just a fear at the time, =
it was
a real problem on a number of networks, including, but not limited to =
SPRINT
and MCI who were the big dogs in the fight at the time.
NAT, OTOH, is an address conservation mechanism which has unfortunately
of late been mistaken for a security tool. If only people would realize =
how much
NAT negatively impacts security, manageability, etc.
Owen
