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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: 12/8 problems?
On Fri, Sep 09, 2005 at 11:12:25AM -0400, Drew Linsalata wrote: > > Apologies for a post of an operational nature, but is anyone else seeing > problems with AT&Ts 12/8 block? > > From a New York router connected to Global Crossing and Peer 1: > > border-1.nycmny> sh ip bgp 12.xxx.xxx.xxx > > BGP routing table entry for 12.0.0.0/8, version 86901457 > Paths: (2 available, best #1) > Not advertised to any peer > 3549 12956 26210 > 64.213.176.97 from 64.213.176.97 (208.50.59.1) > Origin incomplete, metric 2602, localpref 100, valid, external, > best, ref 2 > Community: 232589665 232618104 > 13768 12956 26210, (received-only) > 64.34.84.117 from 64.34.84.117 (216.187.124.10) > Origin incomplete, localpref 100, external, ref 2 > > Route views is showing a 12/8 with a fair amount of dampening/flap > penalties in the last 10-12 minutes. Looks like 12956 is announcing some /8s to every peer and transit. Worse still, Sprint and GX are propagating it. This is not the first time that Telefonica has leaked a lot of garbage routes with serious network impact as a result (nor is it the second or third, actually). 12.0.0.0/8 64.0.0.0/8 65.0.0.0/8 I'd say both GX and Sprint have a lot to answer for right about now. -- Richard A Steenbergen <[email protected]> http://www.e-gerbil.net/ras GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)
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