[133606] in North American Network Operators' Group
Re: Some truth about Comcast - WikiLeaks style
daemon@ATHENA.MIT.EDU (Richard A Steenbergen)
Tue Dec 14 03:12:22 2010
Date: Tue, 14 Dec 2010 02:11:56 -0600
From: Richard A Steenbergen <ras@e-gerbil.net>
To: Jeffrey Lyon <jeffrey.lyon@blacklotus.net>
In-Reply-To: <AANLkTin792emkfJPEUT38GCmBrLxe=uOFi=8vnJCYJx5@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tue, Dec 14, 2010 at 02:54:13AM -0500, Jeffrey Lyon wrote:
> gin-nto-icore1 is a Tata router at Equinix in NY. Whether or not that
> port belongs to Comcast is anyone's guess.
=46rom Tata's looking glass:
3 Vlan550.icore1.NTO-NewYork.as6453.net (209.58.26.78) 4 msec
Vlan551.icore1.NTO-NewYork.as6453.net (209.58.26.82) 4 msec 0 msec
4 pos-1-9-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.86.41) [AS 7922] 4=
msec 4 msec 4 msec
As far as I can tell their DNS doesn't expose Tata's router port names=20
at all:
77.26.58.209.in-addr.arpa domain name pointer Vlan550.icore1.NTO-NewYork.as=
6453.net.
78.26.58.209.in-addr.arpa domain name pointer Vlan550.icore1.NTO-NewYork.as=
6453.net.
81.26.58.209.in-addr.arpa domain name pointer Vlan551.icore1.NTO-NewYork.as=
6453.net.
82.26.58.209.in-addr.arpa domain name pointer Vlan551.icore1.NTO-NewYork.as=
6453.net.
41.86.86.68.in-addr.arpa domain name pointer pos-1-9-0-0-cr01.newyork.ny.ib=
one.comcast.net.
42.86.86.68.in-addr.arpa domain name pointer pos-1-0-0-0-pe01.111eighthave.=
ny.ibone.comcast.net.
Though I suppose if someone was photoshopping it, it would be pretty=20
obvious for them to stick something that does show up in DNS into the=20
graphs, so that doesn't exactly prove much. I'm also assuming Comcast=20
wouldn't be very happy to have these out in public, so there is pretty=20
much no way you're going to see a leaked graph that ISN'T from an=20
anonymous source.
FWIW these graphs pretty much reflect the massive congestion that I've=20
been observing between Tata and Comcast. I've also seen some third party=20
Smokeping graphs which visually show the rate of loss, and the pattern=20
looks very very similar, but I'll let someone who actually maintains=20
them be the one to post them.
--=20
Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)
