[139382] in North American Network Operators' Group
Re: IPv4 Address Exhaustion Effects on the Earth
daemon@ATHENA.MIT.EDU (Jared Mauch)
Tue Apr 5 17:39:25 2011
From: Jared Mauch <jared@puck.nether.net>
In-Reply-To: <4D9A2A80.2060903@freedesktop.org>
Date: Tue, 5 Apr 2011 17:38:22 -0400
To: Jim Gettys <jg@freedesktop.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Apr 4, 2011, at 4:30 PM, Jim Gettys wrote:
> Note that the paper "Characterizing Residential Broadband Networks" by =
Dischinger, et. al. indicates that a large fraction (in their 2 year old =
sample, 30% or so) of broadband head ends are running without RED, and =
should be doing so if at all possible; alternatives are years out by the =
time they are tested and deployed, and operators running without it in =
congested systems are inflicting pain on their customers.
Something I've observed is if you are sending data 'upstream' on the =
cable modem setup i have (16 down/ 2 up) and you saturate the upstream, =
the buffering destroys any downstream capability at the same time. I'm =
not even sure where to start diagnosing to explaining this to the =
carrier involved, as this isn't the desired behavior of a "business =
class" service.
- Jared=
