I see the same from AS 16517 - *> 205.139.72.0 216.177.55.5 500 15076 701 3561 23037 {80,109,122,... Note that our paths diverge after AS 23037 Could IMC Internet (ASN-IMC-BGP) be the source of the problem. Regards Marshall Eubanks Mike Lewinski wrote:

Of course it would be towards the end of the table.

Here's a sample of the more detailed log at http://www.rockynet.com/wtf.html

*>i205.139.72.0 a.b.c.d 101 0 3561 23037 {1239,1785,2379,4323,4513,4546,4969,5006,5676,5778,6181,6253,6347,6395,6453, 6580,6993,7132,7795,10242,10346,10492,10625,10674,10726,10851,10910,10937,10 957,11101,11134,11169,11589,11657,11853,12094,12156,12163,12175,12221,13350, 13371,13443,13488,13568,13576,13578,13641,13790,13815,13882,14021,14130,1428 9,14359,14381,14452,14549,14564,14677,14685,14929,14990,15062,15150,15214,15 215,16477,16504,16554,16597,16631,16640,16707,16782,16852,16980,17033,17060, 17253,17304,18480,18548,18565,18618,18862,18866,18903,18957,19019,19024,1954 1,19746,19893,20045,20303,20316,20357,20458,21536,21591,21715,21822,21853,22 191,22219,22242,22299,22319,22389,22406,22476,22728,22764,22912,22960,23195, 23269,23306,23365,25639,25707,25905,26004} ?

* i a.b.c.d 101 0 3561 23037 {1239,1785,2379,4323,4513,4546,4969,5006,5676,5778,6181,6253,6347,6395,6453, 6580,6993,7132,7795,10242,10346,10492,10625,10674,10726,10851,10910,10937,10 957,11101,11134,11169,11589,11657,11853,12094,12156,12163,12175,12221,13350, 13371,13443,13488,13568,13576,13578,13641,13790,13815,13882,14021,14130,1428 9,14359,14381,14452,14549,14564,14677,14685,14929,14990,15062,15150,15214,15 215,16477,16504,16554,16597,16631,16640,16707,16782,16852,16980,17033,17060, 17253,17304,18480,18548,18565,18618,18862,18866,18903,18957,19019,19024,1954 1,19746,19893,20045,20303,20316,20357,20458,21536,21591,21715,21822,21853,22 191,22219,22242,22299,22319,22389,22406,22476,22728,22764,22912,22960,23195, 23269,23306,23365,25639,25707,25905,26004} ?

* e.f.g.h 25 0 701 3561 23037 {1239,1785,2379,4323,4513,4546,4969,5006,5676,5778,6181,6253,6347,6395,6453, 6580,6993,7132,7795,10242,10346,10492,10625,10674,10726,10851,10910,10937,10 957,11101,11134,11169,11589,11657,11853,12094,12156,12163,12175,12221,13350, 13371,13443,13488,13568,13576,13578,13641,13790,13815,13882,14021,14130,1428 9,14359,14381,14452,14549,14564,14677,14685,14929,14990,15062,15150,15214,15 215,16477,16504,16554,16597,16631,16640,16707,16782,16852,16980,17033,17060, 17253,17304,18480,18548,18565,18618,18862,18866,18903,18957,19019,19024,1954 1,19746,19893,20045,20303,20316,20357,20458,21536,21591,21715,21822,21853,22 191,22219,22242,22299,22319,22389,22406,22476,22728,22764,22912,22960,23195, 23269,23306,23365,25639,25707,25905,26004} ?

neighbor ids's are munged, otherwise it's a straight dump of what we're getting. I've gotten two other confirmations as well.

Mike

----- Original Message ----- From: "Mike Lewinski" <mike@rockynet.com> To: <nanog@merit.edu> Sent: Wednesday, July 03, 2002 9:46 AM Subject: AS path fugliness?

...

Anyone else receiving huge as-path (more than 125) causing these:

Jul 3 08:23:06 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268 Jul 3 08:23:46 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 270 Jul 3 08:27:45 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 274 Jul 3 08:31:59 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268 Jul 3 08:41:02 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268 Jul 3 08:41:43 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 270 Jul 3 08:57:56 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268 Jul 3 09:04:04 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268 Jul 3 09:10:01 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268 Jul 3 09:10:52 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 270 Jul 3 09:17:40 MDT: %BGP-3-INSUFCHUNKS: Insufficient chunk pools for aspath, requested size 268

(per http://www.cisco.com/warp/public/459/35.shtml )

It started just after local Qwest routes apparently recovered from some

kind

...

of nose-dive. We're still sorting through the tables trying to find out

who,

...

thus far longest I've found is about 20.

Mike

-- Regards Marshall Eubanks This e-mail may contain confidential and proprietary information of Multicast Technologies, Inc, subject to Non-Disclosure Agreements 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.multicasttech.com Test your network for multicast : http://www.multicasttech.com/mt/ Status of Multicast on the Web : http://www.multicasttech.com/status/index.html

ML> Date: Wed, 3 Jul 2002 10:40:58 -0600 ML> From: Mike Lewinski ML> *> 205.139.72.0 216.177.55.5 500 15076 701 3561 ML> 23037 {80,109,122,... ML> We've opened a ticket with C&W. The tech I spoke with wasn't ML> aware of this issue. It does appear that all affected ML> netblocks are IMC Internet, and that C&W provides the IP ML> space to them. ...and 23037 is the last AS hop before the screwy AS_SET mess. (Note the curly braces in the as-path.) Telnet to 166.63.158.166 gives a Nortel banner. nmap guesses "Bay Networks BLN-2 Network Router or ASN Processor Revision 9". Any known issues with Bay/Nortel BGP? Any ways run amok with AS_SET? Eddy -- Brotsman & Dreger, Inc. - EverQuick Internet Division Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 (785) 865-5885 Lawrence and [inter]national Phone: +1 (316) 794-8922 Wichita ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) From: A Trap <blacklist@brics.com> To: blacklist@brics.com Subject: Please ignore this portion of my mail signature. These last few lines are a trap for address-harvesting spambots. Do NOT send mail to <blacklist@brics.com>, or you are likely to be blocked.

ML> Date: Wed, 3 Jul 2002 10:12:42 -0600 ML> From: Mike Lewinski ML> Of course it would be towards the end of the table. ML> ML> Here's a sample of the more detailed log at http://www.rockynet.com/wtf.html ML> ML> *>i205.139.72.0 a.b.c.d 101 0 3561 23037 ML> {1239,1785,2379,4323,4513,4546,4969,5006,5676,5778,6181,6253,6347,6395,6453, ML> 6580,6993,7132,7795,10242,10346,10492,10625,10674,10726,10851,10910,10937,10 ML> 957,11101,11134,11169,11589,11657,11853,12094,12156,12163,12175,12221,13350, ML> 13371,13443,13488,13568,13576,13578,13641,13790,13815,13882,14021,14130,1428 ML> 9,14359,14381,14452,14549,14564,14677,14685,14929,14990,15062,15150,15214,15 ML> 215,16477,16504,16554,16597,16631,16640,16707,16782,16852,16980,17033,17060, ML> 17253,17304,18480,18548,18565,18618,18862,18866,18903,18957,19019,19024,1954 ML> 1,19746,19893,20045,20303,20316,20357,20458,21536,21591,21715,21822,21853,22 ML> 191,22219,22242,22299,22319,22389,22406,22476,22728,22764,22912,22960,23195, ML> 23269,23306,23365,25639,25707,25905,26004} ? 1239 is sending ^1239_23037$ instead of the ugly mess... 19358 hears the sane path via ^1239_, ^3549_1239_, and ^6347_1239_. 23037 experimenting with as-set in a very bad way? Eddy -- Brotsman & Dreger, Inc. - EverQuick Internet Division Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 (785) 865-5885 Lawrence and [inter]national Phone: +1 (316) 794-8922 Wichita ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) From: A Trap <blacklist@brics.com> To: blacklist@brics.com Subject: Please ignore this portion of my mail signature. These last few lines are a trap for address-harvesting spambots. Do NOT send mail to <blacklist@brics.com>, or you are likely to be blocked.