[NCLUG] AT&T: 12.244.71 subnet causing lag

Brian Stanback brian at stanback.net
Mon Dec 10 13:35:23 MST 2001


Looks like it is a lot better this afternoon:

About 9 hops until I am off of the att network
Ping times to yahoo averaging 40msec

On Mon, 2001-12-10 at 12:59, Brian Stanback wrote:
> Corey,
> 
> I have seen the same behavior all yesterday - I haven't checked today yet.
> I was seeing latency of ~500-600ms to places like google, yahoo, frii. I
> did a traceroute, and noticed one of their routers/switches was slow (not
> sure which one it was though) I was also seeing somewhere in the
> neighborhood of 20-25 hops to anywhere on the internet and over half of
> those were on the att network.
> 
> I am hoping this is temporary. I was seeing ping times of around 40-50ms
> to google, etc. the afternoon service was turned on.
> n
> --
> Brian
> 
> On Mon, 10 Dec 2001, Corey Keasling wrote:
> 
> > Hello,
> >
> > I got my connection back Saturday evening and everything seemed just as
> > brisk as always.  However, last night I started noticing that routers/switches
> > on the 12.244.71/24 (?) subnet were slowing things down (most of my packets
> > pass through these on the third hop).  In particular,
> > traceroute told me that the system 12.244.71.141 was adding an average of
> > 950ms to every packet that passed through it!  Other system on 12.244.71.*
> > were adding a minimum of 200ms, depending on which one my packets passed
> > through on their way out of ip.att.net.  I miss 50ms ping times.  I can't use
> > a remote shell if it takes 1 second to make the round trip.  My traceroute
> > logs are at home, so I could be wrong on the IP addressed.  Is anyone else
> > seeing this behavior?
> >
> > I emailed AT&T customer abuse, but (surprise, surprise), I haven't heard
> > anything from them yet.  Of course, I mentioned ssh in the letter so I doubt
> > I'll get anything back besides "we don't support ssh".
> >
> > Corey
> > No, I will not fix your computer.
> >
> > _______________________________________________
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> > NCLUG at nclug.org
> > http://www.nclug.org/mailman/listinfo/nclug
> >
> 
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