[36813] in North American Network Operators' Group
Re: Routing Loops
daemon@ATHENA.MIT.EDU (Marshall Eubanks)
Fri Apr 20 14:43:39 2001
Message-ID: <3AE08043.FBDB3B02@21rst-century.com>
Date: Fri, 20 Apr 2001 14:30:28 -0400
From: Marshall Eubanks <tme@21rst-century.com>
Reply-To: tme@21rst-century.com
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To: "Foster, Kristopher" <KFoster@C1Communications.com>
Cc: Nanog mailing list <nanog@merit.edu>, hostmaster@fnsi.net
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"Foster, Kristopher" wrote:
Well, that might be what they are TRYING to do, but read it carefully :
6259
6295
6259
Is a loop in my book.
Marshall
> They're just prepending the AS path to influence their upstreams..
>
> Kris,
>
> -----Original Message-----
> From: Marshall Eubanks [mailto:tme@21rst-century.com]
> Sent: April 20, 2001 2:23 PM
> To: Nanog mailing list; hostmaster@fnsi.net
> Subject: Routing Loops
>
> Hello;
>
> I suddenly see a whole bunch of routing loops for paths going through AS
> 6259
>
> Unicast Autonomous System Routing Loop Detection
>
> Date of BGP Dump Fri Apr 20 13:57:36 EDT 2001
>
> 1 ROUTING LOOPS Detected for ASN 11548 Prefix = 63.69.155.0/24 : PATH
> = : 1239 3549 6259 6295 6259 11548
> 1 ROUTING LOOPS Detected for ASN 11548 Prefix = 63.81.238.0/24 : PATH
> = : 1239 3549 6259 6295 6259 11548
> 1 ROUTING LOOPS Detected for ASN 13944 Prefix = 64.241.89.0/24 : PATH
> = : 1239 3549 6259 6295 6259 13944
> 1 ROUTING LOOPS Detected for ASN 13944 Prefix = : PATH
> = : 1239 3549 6259 6295 6259 13944
> 1 ROUTING LOOPS Detected for ASN 14813 Prefix = 66.35.68.0/22 : PATH
> = : 1239 3549 6259 6295 6259 13944 14813
> 1 ROUTING LOOPS Detected for ASN 17266 Prefix = 66.35.72.0/23 : PATH
> = : 1239 3549 6259 6295 6259 13944 17266
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 138.46.0.0 : PATH
> = : 701 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 2015 Prefix = 139.171.0.0/19 : PATH
> = : 1239 3549 6259 6295 6259 2015
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 143.61.153.0/24 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 143.61.233.0/24 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 192.84.218.0 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 198.181.242.0 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 204.107.238.0 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 204.238.145.0 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 206.183.224.0/19 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 209.41.192.0/18 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 8142 Prefix = : PATH
> = : 1239 3549 6259 6295 6259 8142
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 209.115.0.0/17 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = 216.28.0.0/15 : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 14470 Prefix = 216.28.223.0 : PATH
> = : 1239 3549 6259 6295 6259 14470
> 1 ROUTING LOOPS Detected for ASN 11325 Prefix = 216.29.50.0 : PATH
> = : 1239 3549 6259 6295 6259 11325
> 1 ROUTING LOOPS Detected for ASN 11303 Prefix = 216.52.158.0 : PATH
> = : 1239 11853 11303 11301 11303
> 1 ROUTING LOOPS Detected for ASN 11303 Prefix = : PATH
> = : 701 11853 11303 11301 11303
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = : PATH
> = : 1239 3549 6259 6295 6259
> 1 ROUTING LOOPS Detected for ASN 6259 Prefix = : PATH
> = : 1239 3549 6259 6295 6259
>
> Anyone know a NOC contact for
> Fiber Network Solutions, Inc. (ASN-FIBERNET) ?
>
> Regards
> Marshall Eubanks
--
Regards
Marshall Eubanks
T.M. Eubanks
Multicast Technologies, Inc
10301 Democracy Lane, Suite 410
Fairfax, Virginia 22030
Phone : 703-293-9624
Fax : 703-293-9609
e-mail : tme@multicasttech.com
http://www.on-the-i.com
Test your network for multicast : http://www.multicasttech.com/mt/
