[103550] in North American Network Operators' Group
Re: Comcast problems?
daemon@ATHENA.MIT.EDU (Ted Fischer)
Sat Apr 5 15:08:37 2008
Date: Sat, 05 Apr 2008 15:03:35 -0400
To: nanog@nanog.org
From: Ted Fischer <ted@fred.net>
In-Reply-To: <75cb24520804051116h16407df8k56c7ff028db601b4@mail.gmail.co
m>
Errors-To: owner-nanog@merit.edu
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I didn't save any of my Wireshark traces, but this is what I observed
(I'm behind Charter at home but visiting my brother in NJ - Comcast territory).
All attempts to check my e-mail (neither Charter nor Comcast) showed
the syns going out but no syn acks coming back. Then, after a few
minutes (pop server time outs I guess) I started seeing fins coming
back from the pop server that matched my connection requests. Saw
that occur with various http connection attempts as well.
Of course, the only reason I can send this reply out is that they
appear to be back up. Any chance of getting a non-nonsensical RFO
from someone?
Ted
At 02:16 PM 4/5/2008, you wrote:
>On Sat, Apr 5, 2008 at 1:44 PM, Steven M. Bellovin
><smb@cs.columbia.edu> wrote:
>
> > The fact that I get different behavior for different protocols makes me
> > suspect they're having trouble with equipment designed to control p2p
> > traffic. Their help phone line simply speaks of an outage. Service
> > has come back occasionally, but not for long. The problem has been
> > going on since about 6am.
> >
> > Does anyone have any data?
>
>wasn't it sandvine last time? did you try calling them as well? All
>joking aside, one hopes that these sorts of things show that the 'p2p
>control' soutions are far from perfect and far from 'well baked' and
>likely still very ill-advised.
>
>-Chris
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I didn't save any of my Wireshark traces, but this is what I observed
(I'm behind Charter at home but visiting my brother in NJ - Comcast
territory).<br><br>
All attempts to check my e-mail (neither Charter nor Comcast) showed the
syns going out but no syn acks coming back. Then, after a few
minutes (pop server time outs I guess) I started seeing fins coming back
from the pop server that matched my connection requests. Saw that
occur with various http connection attempts as well.<br><br>
Of course, the only reason I can send this reply out is that they appear
to be back up. Any chance of getting a non-nonsensical RFO from
someone?<br><br>
Ted<br><br>
At 02:16 PM 4/5/2008, you wrote:<br><br>
<blockquote type=cite class=cite cite="">On Sat, Apr 5, 2008 at 1:44 PM,
Steven M. Bellovin <smb@cs.columbia.edu> wrote:<br><br>
> The fact that I get different behavior for different protocols
makes me<br>
> suspect they're having trouble with equipment designed to
control p2p<br>
> traffic. Their help phone line simply speaks of an
outage. Service<br>
> has come back occasionally, but not for long. The
problem has been<br>
> going on since about 6am.<br>
><br>
> Does anyone have any data?<br><br>
wasn't it sandvine last time? did you try calling them as well? All<br>
joking aside, one hopes that these sorts of things show that the
'p2p<br>
control' soutions are far from perfect and far from 'well baked' and<br>
likely still very ill-advised.<br><br>
-Chris</font></blockquote></body>
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