[104197] in North American Network Operators' Group
Re: [NANOG] Comcast latency
daemon@ATHENA.MIT.EDU (Jim Popovitch)
Wed Apr 30 09:46:49 2008
Date: Wed, 30 Apr 2008 09:46:38 -0400
From: "Jim Popovitch" <yahoo@jimpop.com>
To: "nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <20080430121418.0cd50c6c@cs.columbia.edu>
Errors-To: nanog-bounces@nanog.org
On Wed, Apr 30, 2008 at 8:14 AM, Steven M. Bellovin <smb@cs.columbia.edu> wrote:
> On Tue, 29 Apr 2008 23:43:46 -0500
> mack <mack@exchange.alphared.com> wrote:
>
> > Has anyone else noticed a significant increase in latency within
> > Comcast's network?
> >
> On one quick test, it looks normal to me from my house.
Looks can sometimes be deceiving. ;-) I've seen Comcast drop packets
left and right, but show 8Mbs/2Mbs on speed test sites. Other times
I've seen the opposite, zero PL but extremely high latency (seconds,
double digits!)... all the while non-dynamic web pages (probably
cached upstream) loaded just fine.
Look, I've always been a big fan of Comcast.... but at this point I
suspect they have just about over-engineered their network.
-Jim P.
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