Kevin, Thank you for the info. Can you say how many quarters or years until Comcast is resolved? I've seen references to that obscure whitepaper (co-authored, ironically, by Patrick Gilmore) before on the broadbandreports forums, by someone with a lot of knowledge on Comcast's network and internal politics/peering discussions. Do you know who the poster is? https://encrypted.google.com/search?q=28619103+dslreports+site:www.dslreports.com&biw=1000&bih=1000 Drive Slow, Paul WALL On Sun, Jan 5, 2014 at 6:17 PM, McElearney, Kevin <Kevin_McElearney@cable.comcast.com> wrote:

FWIW, we work with each issue and try to fix them as best we can. Several are underway. Much of the ³traffic shifting² is happening external to Comcast with very large traffic swings congesting AND uncongesting paths. The beauty of adaptive routing via CDN and text book ³Creating Incentives to Peer² - feel free to google that...

- Kevin

On 1/5/14, 1:22 AM, "Paul WALL" <pauldotwall@gmail.com> wrote:

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The people pushing this policy are not without a face and name. They read this mailing list, and attend our conferences. You'll want to talk to John Schanz, Kevin McElearney, and Barry Tishgart.

Drive Slow (like a Comcast peering port), Paul Wall

On Fri, Jan 3, 2014 at 10:55 AM, Scott Berkman <scott@sberkman.net> wrote:

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Comcast having saturated links to other providers is a common and frequently discussed issue. Here is one previous NANOG thread on the topic:

http://mailman.nanog.org/pipermail/nanog/2010-December/029251.html

And a related article: http://www.dslreports.com/shownews/Claims-Resurface- Concerning-Congested-Comcast-TATA-Links-111818

There are debates back and forth on the validity of the graphs from the NANOG post, but it is a fact that at that time Comcast was heavily pre-pending their Level BGP advertisements to force traffic over to Tata, and many many people noticed congestion at those links in a variety of markets.

I wish you luck, but my personal opinion is that your fastest resolution would be to move to another provider. Comcast is a residential ISP that lives on extreme over-subscription and not actually being able to deliver what customers believe they have. You'll notice a lot of recent news about increased and more strict data caps for their subscribers, and that is the only thing they will likely be doing to relieve these types of recurring issues.

-Scott

On 01/02/2014 11:18 PM, R W wrote:

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I'm seeing the same as well. Can anyone from Comcast/Level(3) reach out to me or provide comment. We're seeing heavy jitter and some packet loss most noticeable in NYC area connections between Level(3) and Comcast. -Rob

Date: Tue, 31 Dec 2013 09:45:00 -0800

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Subject: Comcast/Level3 issues From: dwheet@gmail.com To: nanog@nanog.org

Looking for a networking contact at comcast and/or level3. I've been having some slow speed issues with hitting some sites that's going through level3 and I think there might be some congestion.

Doug