AT&T flapped in Washington?

Leland Vandervort leland at taranta.discpro.org
Thu Nov 5 11:26:30 CST 2009


DC it seems..

specifically #13 in the partial trace:
11  cr2.n54ny.ip.att.net (12.122.130.102)  87.720 ms  85.642 ms  87.083
ms
12  cr2.wswdc.ip.att.net (12.122.3.38)  85.815 ms  89.022 ms  89.031 ms
13  12.122.134.153 (12.122.134.153)  88.434 ms  85.743 ms  85.440 ms

and #13 in this one:

 9  xe-0-1-0.er1.dca2.us.above.net (64.125.27.25)  103.117 ms  103.171
ms  103.140 ms
10  xe-1-1-0.er1.iad10.above.net (64.125.26.238)  81.522 ms  81.509 ms
81.570 ms
11  192.205.36.125 (192.205.36.125)  82.556 ms  82.594 ms  82.570 ms
12  cr1.wswdc.ip.att.net (12.122.82.222)  85.047 ms cr2.wswdc.ip.att.net
(12.122.84.46)  84.959 ms  84.784 ms
13  12.122.134.1 (12.122.134.1)  84.224 ms  84.719 ms 12.122.135.1
(12.122.135.1)  84.745 ms




On Thu, 2009-11-05 at 09:21 -0800, Ali S wrote:
> Washington state or DC ?
> 
> sent via droid...
> 
> > On Nov 5, 2009 8:25 AM, "Leland Vandervort"
> > <leland at taranta.discpro.org> wrote:
> > 
> > Hi all,
> > 
> > Anyone have any information on the 20 minute (or so) flap that
> > appears
> > to have occured in Washington between AT&T and the rest of the
> > world?
> > 
> > We saw a complete outage of connectivity to several APIs at a few
> > parnters who happen to all be behind AT&T.  Although in BGP the
> > routes
> > were still being advertised across this peering from AT&T to the
> > world,
> > traffic just died at the washington peering with AT&T irrespective
> > of
> > which path we took.  (3 different transits here).
> > 
> > Just curious.
> > 
> > 
> > Thanks,
> > 
> > Leland
> > 
> > 
> > 
> 





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