August 2002 - NANOG - lists.nanog.org

The Cidr Report
by CIDR Report 16 Aug '02

16 Aug '02

This is an auto-generated mail on Fri Aug 16 23:00:01 PDT 2002 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amount of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 16Aug02 0) General Status Table History ------------- Date Prefixes 090802 112833 100802 112990 110802 112840 120802 112791 130802 112534 140802 112650 150802 112454 160802 112263 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 13432 Number of ASes announcing only one prefix: 8161 (4608 cidr, 3553 classful) Largest number of cidr routes: 715 announced by AS3908 Largest number of classful routes: 1192 announced by AS701 1) Gains by aggregating at the origin AS level --- 16Aug02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1192 962 230 19.3% UUNET Technologies, Inc. AS1221 1043 824 219 21.0% Telstra Pty Ltd AS17557 265 94 171 64.5% Pakistan Telecom AS6595 227 58 169 74.4% DoD Education Activity Network As AS852 515 378 137 26.6% Telus Advanced Communications AS7018 795 678 117 14.7% AT&T AS16473 178 73 105 59.0% Bell South AS4151 251 154 97 38.6% USDA AS19632 99 5 94 94.9% Metropolis Intercom S.A. AS12302 122 29 93 76.2% MobiFon S.A. AS16814 105 20 85 81.0% NSS, S.A. AS226 170 89 81 47.6% Los Nettos AS1239 500 419 81 16.2% Sprint AS577 268 194 74 27.6% Bell Advanced Communications Inc. AS7046 289 216 73 25.3% UUNET Technologies, Inc. AS4755 203 130 73 36.0% Videsh Sanchar Nigam Ltd. Autonom AS2048 179 106 73 40.8% State of Louisiana AS724 214 152 62 29.0% DLA Systems Automation Center AS19834 64 4 60 93.8% NetForce, Inc. AS10620 85 25 60 70.6% TVCABLE BOGOTA AS3464 161 103 58 36.0% Alabama SuperComputer Network AS5515 243 186 57 23.5% Sonera Finland Autonomous System AS16758 63 6 57 90.5% IKON Office Solutions AS3908 283 228 55 19.4% Supernet, Inc. AS9498 85 31 54 63.5% BHARTI BT INTERNET LTD. AS9051 82 28 54 65.9% INCONET Autonomous System AS209 286 232 54 18.9% Qwest AS6535 69 16 53 76.8% Chilesat Servicios Empresariales AS703 276 225 51 18.5% UUNET Technologies, Inc. AS4538 87 36 51 58.6% China Education and Research Netw Total 54945 42384 12561 22.9% For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Telus outage in Toronto, Ont Canada (AS852) ?
by Mike Tancsa 16 Aug '02

16 Aug '02

I cant get a hold of anyone in the NOC, but my local field tech says several large circuits got knocked out as a result of a broken pipe in their CO on University Ave. Does anyone else have any more details ? All the 1 800#s I have for them are still fast busy. ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike(a)sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike

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Maybe just slightly operational Palladium information
by Kevin Oberman 16 Aug '02

16 Aug '02

OK. This is a bit beyond the charter, but there was a long and annoying thread on Microsoft Palladium last week and I just read an interesting article that seems to minimize the FUD I have been seeing. http://www.counterpane.com/crypto-gram-0208.html The author is Bruce Schneier, one of the best known crypto and security experts out there. He is also not a Microsoft fan (or hater) and that makes him one of the best sources for information on computer security issues. Over all, I found the article excellent. It might at least make some of the silly messages on the subject seem even sillier and point out the real concerns and possible benefits of Pd. R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman(a)es.net Phone: +1 510 486-8634

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Max Prefixes Configured on Customer BGP (WAS Re: ALGX problems?)
by Joe Wood 16 Aug '02

16 Aug '02

On Thu, 15 Aug 2002, Chris Parker wrote: > Well, it was one of ALGX downstreams leaking to them. Shame on them > for not filtering their customer properly. How many times do we have > to learn this lesson? As much as it would be nice if everyone used prefix-lists on their customer BGP sessions, but sometimes this is not possible, or cumbersome. I know from past experience as a transit customer, that I have personally shyed away from ISP's that have restricted me to having their NOC update my ACL. However, I don't really see a reason why ISP's shouldn't implement max-prefixes on their customer sessions; This would not prevent against very small prefix leaks, but would prevent partial and whole routing table leaks that impact many networks. How many of you that currently do not filter your customer BGP sessions have max-prefixes configured? How many of you that currently do not filter your customer BGP sessions and do NOT have max-prefixes configured would be willing to configure the sessions to support this? Joe

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Echo
by Martin Hannigan 16 Aug '02

16 Aug '02

Looks like the echo mail reflectors at PSI are now gone. Must've happened today as I use these frequently. --SNARF Your message To: echo(a)psi.com Subject: test foo test bar test foo test bar Sent: Fri, 16 Aug 2002 12:29:27 -0400 did not reach the following recipient(s): echo(a)psi.com on Fri, 16 Aug 2002 12:29:41 -0400 The recipient name is not recognized The MTS-ID of the original message is: c=us;a= ;p=cogent --END Regards, -- Martin Hannigan hannigan(a)fugawi.net Boston, MA http://www.fugawi.net

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Re: Qwest Outage?
by James Ferris 16 Aug '02

16 Aug '02

Sorry about that - apparently there was a Broadwing fiber cut 1 mile west of Dallas that affected Fort Worth and Houston. All is back up now (after doing my share of freaking out!). Thanks! ----Original Message Follows---- From: Peter van Dijk To: nanog(a)merit.edu Subject: Re: Qwest Outage? Date: Fri, 16 Aug 2002 09:26:52 +0200 On Fri, Aug 16, 2002 at 02:23:56AM -0500, James Ferris wrote: Interesting. No text/plain content. Please disable HTML in your mailer and we may be able to read what you are saying :) Greetz, Peter -- MegaBIT - open air networking event - http://www.megabit.nl/ _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx

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Qwest Outage?
by James Ferris 16 Aug '02

16 Aug '02

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Donkey Balls
by Nathan 15 Aug '02

15 Aug '02

Hey, In my fraternity we have a tradition of sending "donkey balls" messages to people who leave their email accounts open on other people's machines. Anyhow, just a friendly "Hi, you suck donkey balls!" note from your friend Emily. :-D E

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OT: Seeking John {Johnson, Villasenor, Todd}
by Jamie Norwood 15 Aug '02

15 Aug '02

If you are one of these famous John's, who helped make Onyx such a resounding success, drop me a line, eh? ;) We now return you to your normally schedualed NANOGing. Jamie

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wcg.com dead?
by Dan Hollis 15 Aug '02

15 Aug '02

Are they dead now? I have been trying to contact them for over two months regarding attacks from one of their customers. They dont return any email or phonecalls. AS7911 is asleep at the wheel now, or on autopilot? -Dan -- [-] Omae no subete no kichi wa ore no mono da. [-]

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