[149279] in North American Network Operators' Group
Re: non-congested comcast peers?
daemon@ATHENA.MIT.EDU (PC)
Tue Jan 31 20:58:47 2012
In-Reply-To: <CACEOnk_isvCxxZz3URwvfJwZtLJVrspktsKdFKo5NgmmMJO3DQ@mail.gmail.com>
Date: Tue, 31 Jan 2012 18:58:00 -0700
From: PC <paul4004@gmail.com>
To: Shacolby Jackson <shacolby@bluejeans.com>
Cc: nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Some datapoints based on ~500mb constant UDP telemetry data feed (total)
spread across many different comcast endpoints.
All Cogent -> Comcast.
Even though there's heavy forward error correction provisioned to
accommodate 5-10% packet loss, it's hardly used. In fact, packet delivery
is incredible impressive to comcast. Loss is well below 0.01% and often
involves another zero in there, too. It's one of the best consumer access
networks I've seen and I give them a huge thumbs up for it.
Needless to say, I can't back up the same stats against some other carriers
(Verizon being the biggest offender, with their congestion being localized
to the ATM/DSLAM level and sometimes very high based on my metrics and
sampling). That's why the FEC is there.
On Tue, Jan 31, 2012 at 8:20 AM, Shacolby Jackson <shacolby@bluejeans.com>wrote:
> Are there any providers that Comcast doesn't regularly run hot? Seems like
> no matter who I deliver through at some magical point in the evening they
> start spiking jitter and a little loss. Almost like everyone hits PLAY on
> netflix at the same time.
>
> -shac
>
