[126162] in North American Network Operators' Group
Re: Emulating ADSL bandwidth shaping
daemon@ATHENA.MIT.EDU (Chris Boyd)
Tue May 4 09:20:23 2010
From: Chris Boyd <cboyd@gizmopartners.com>
In-Reply-To: <C76AD2A7-2328-49F8-B5FC-B3A19F28ED80@americafree.tv>
Date: Tue, 4 May 2010 08:19:39 -0500
To: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On May 4, 2010, at 7:27 AM, Marshall Eubanks wrote:
> I am not sure what the point is in mixing in speed of light latency. =
If your "typical sites" are, say,
> Indian cricket blogs, you will typically have a high latency from the =
US. What does that tell
> you about your DSL or Cable system, except that it is somewhat removed =
from India ?
Most of the ADSL installations I've seen in SBC 13 state area had =
interleaving turned on, which significantly increases latency. I =
suspect that's why many cable MSOs in the same territory have "cable is =
better for gaming" marketing campaigns running all the time.
So the latency you see on an ADSL line is dependent on how the carrier =
set up the DSLAM.
--Chris=
