AT&T prefix flapping?

Jonathan Park j13park at hotmail.com
Fri Oct 16 15:26:26 CDT 2009


Hi all,
For the past two months, 
it seems that AS7132 (SBIS-AT&T) announces and withdraws about 1,500 prefixes to AS7018 (AT&T) monitor every ~80 seconds.  This observation is based on AT&T's monitor peering with RouteViews and RIPE.
Does anyone know what's going on?
Thanks,
Jonathan  		 	   		  
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