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The Cidr Report
by cidr-report＠potaroo.net 04 Mar '05

04 Mar '05

This report has been generated at Fri Mar 4 21:44:37 2005 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 25-02-05 152805 104910 26-02-05 152937 104810 27-02-05 152870 104885 28-02-05 152958 104995 01-03-05 153081 105022 02-03-05 152941 105120 03-03-05 153056 105312 04-03-05 153278 105356 AS Summary 18980 Number of ASes in routing system 7746 Number of ASes announcing only one prefix 1452 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 90449152 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 04Mar05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 153373 105416 47957 31.3% All ASes AS4323 1047 223 824 78.7% TWTC Time Warner Telecom AS18566 773 7 766 99.1% CVAD Covad Communications AS4134 872 206 666 76.4% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1123 567 556 49.5% DNIC DoD Network Information Center AS22773 478 26 452 94.6% CXA Cox Communications Inc. AS7018 1452 1003 449 30.9% ATTW AT&T WorldNet Services AS27364 465 45 420 90.3% ARMC Armstrong Cable Services AS6197 868 462 406 46.8% BNS-14 BellSouth Network Solutions, Inc AS3602 498 137 361 72.5% SPCA Sprint Canada Inc. AS6478 501 158 343 68.5% ATTW AT&T WorldNet Services AS17676 403 79 324 80.4% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 350 39 311 88.9% CNCNET-CN China Netcom Corp. AS4766 574 281 293 51.0% KIXS-AS-KR Korea Telecom AS1239 924 666 258 27.9% SPRN Sprint AS14654 260 6 254 97.7% WAYPOR-3 Wayport AS9443 378 126 252 66.7% INTERNETPRIMUS-AS-AP Primus Telecommunications AS4355 297 60 237 79.8% ERSD EARTHLINK, INC AS9583 607 374 233 38.4% SIFY-AS-IN Sify Limited AS6140 376 145 231 61.4% IMPSA ImpSat AS25844 244 15 229 93.9% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS6198 457 229 228 49.9% BNS-14 BellSouth Network Solutions, Inc AS15270 255 35 220 86.3% PDP-14 PaeTec.net -a division of PaeTecCommunications, Inc. AS2386 819 611 208 25.4% ADCS-1 AT&T Data Communications Services AS9304 246 39 207 84.1% HUTCHISON-AS-AP Hutchison Global Communications AS11456 310 106 204 65.8% NUVOX NuVox Communications, Inc. AS5668 455 261 194 42.6% CIH-12 CenturyTel Internet Holdings, Inc. AS6167 266 79 187 70.3% CELLCO Cellco Partnership AS22909 339 152 187 55.2% CMCS Comcast Cable Communications, Inc. AS6147 205 20 185 90.2% Telefonica del Peru S.A.A. AS6517 308 123 185 60.1% YIPS Yipes Communications, Inc. Total 16150 6280 9870 61.1% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.17.32.0/24 AS5024 BRIDGE-75 BridgeNet, LC 64.17.33.0/24 AS5024 BRIDGE-75 BridgeNet, LC 64.17.37.0/24 AS5024 BRIDGE-75 BridgeNet, LC 64.57.160.0/19 AS3561 SAVVI-3 Savvis 64.92.128.0/19 AS3561 SAVVI-3 Savvis 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 64.209.192.0/18 AS3561 SAVVI-3 Savvis 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 ELISA-AS Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS11814 IGST Information Gateway Services - Toronto 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.200.100.0/24 AS7018 ATTW AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.160.171.0/24 AS7046 UU UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS3541 DISAUN DISA/UNRRA 199.114.136.0/24 AS27044 DNIC DoD Network Information Center 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS27033 DNIC DoD Network Information Center 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS27034 DNIC DoD Network Information Center 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 201.239.0.0/16 AS22047 VTR BANDA ANCHA S.A. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 206.108.96.0/19 AS577 BAC-14 Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIIN VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.138.48.0/20 AS7955 SOURCE-48 SourceNet Corporation 209.27.51.0/24 AS14132 INTERN-582 Internet Gateway Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.185.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.186.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.187.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.188.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.189.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.190.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.191.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

1 0

Heads up: Long AS-sets announced in the next few days
by Lorenzo Colitti 03 Mar '05

03 Mar '05

Hi, as announced to the RIPE routing working group mailing list [1] and elsewhere, over the next few days the Computer Networks research group at Roma Tre University, in collaboration with the RIPE NCC RIS project, will be performing experiments involving announcements with large AS-sets in the AS-path. We are doing this to test innovative network discovery methodologies we developed to allow ISPs to determine how their prefixes are seen by the rest of the Internet. The announcements will be for prefixes 84.205.73.0/24 and 84.205.89.0/24 and will originate in AS12654. We have been performing similar experiments over IPv6, in collaboration with the NAMEX internet exchange, since December 2004 with no ill effects; furthermore, our announcements are standard BGP, so conformant implementations should be able to process them, and very long AS-sets have already been observed in the past (e.g. [2], [3]). However, we want to be careful to avoid router bugs on legacy devices, old firmware versions and the like, so we are first sending out test announcements with progressively longer AS-sets. Should you encounter a problem with these advertisements, please let us know and we will withdraw them. The proposed timetable of the test announcements is as follows. 2005-03-04: 14:00 UTC: 10-element AS-set 14:30 UTC: withdrawal 16:00 UTC: 25-element AS-set 16:30 UTC: withdrawal and, if there are no problems: 2005-03-07: 14:00 UTC: 50-element AS-set 14:30 UTC: withdrawal 16:00 UTC: 100-element AS-set 16:30 UTC: withdrawal Note: For reference, the AS-sets already observed in [2] and [3] contained 123 and 124 ASes respectively. For questions/comments, please contact compunet(a)dia.uniroma3.it or lorenzo(a)ripe.net. Regards, Lorenzo Colitti On behalf of the Roma Tre Computer Networks Research group [1] http://www.ripe.net/ripe/maillists/archives/routing-wg/2005/msg00021.html [2] http://www.ripe.net/projects/ris/Talks/0101_RIPE38_AA/sld003.html [3] http://www.ripe.net/maillists/ncc-archives/ris-users/2002/msg00044.html

14 23

New AS Number Block allocated to the RIPE NCC
by Filiz Yilmaz 03 Mar '05

03 Mar '05

Dear Colleagues, The RIPE NCC received the AS Number Block 34816 - 35839 from the IANA in February 2005. You may want to update your records accordingly. Kind regards, -- Filiz Yilmaz RIPE NCC

1 0

RE: Heads up: Long AS-sets announced in the next few days
by Hallgren, Michael 02 Mar '05

02 Mar '05

Idem 6453. Thanks ;) mh > -----Message d'origine----- > De : James A. T. Rice [mailto:james_r-ripelist@jump.org.uk] > Envoyé : mercredi 2 mars 2005 13:38 > À : Lorenzo Colitti > Cc : Gert Doering; nanog(a)merit.edu; routing-wg(a)ripe.net; > ris-users(a)ripe.net; compunet(a)dia.uniroma3.it > Objet : Re: Heads up: Long AS-sets announced in the next few days > > > This seems to suggest that you are just picking ASns at > random to inject > into the paths, and that you don't have a set of ASs which > you have the > assignees permission to use. > > In which case please keep AS8330, AS8550, and AS8943 out of your > experiments too. > > Using not yet allocated ASns out of RIPEs asn-blocks would > have been more > sensible, IMHO. > > Regards > James > > On Wed, 2 Mar 2005, Lorenzo Colitti wrote: > > > Gert Doering wrote: > >>> 2005-03-04: > >>> 14:00 UTC: 10-element AS-set > >>> 14:30 UTC: withdrawal > >>> 16:00 UTC: 25-element AS-set > >>> 16:30 UTC: withdrawal > >> > >> Please do not announce AS-sets that contain 5539. We are > not part of > >> your experiment, and we don't want to see our AS appear in > other people's > >> router error messages. > > > > Ok, no problem: we will not include AS 5539 in any of the > AS-sets we > > announce. > > > > > > Regards, > > Lorenzo > > > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2005-02-22 > > -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2005-02-22

1 0

Inter-Domain AS-Path failures
by Goetz Lichtwald 01 Mar '05

01 Mar '05

Hi all, for research purpose I am looking for some facts concerning inter-domain AS-path failures. Does anyone of you knows some cites or sources were I can get some numbers on that issue? I am aware that I might ask for network internals that are usually kept secret or at least not public ;-). Anyway if anyone could give me a hint where to find some information about : . Percentage of inter-domain AS-path failures (total amount of inter-domain failures) . How often do inter-domain AS-path failures occur? I would really appreciate! Btw. I do know the Sigcomm Paper "Understanding BGP Mis- configuration". cheers, - goetz -- Dipl. Inform Goetz Lichtwald University of Karlsruhe, Germany Institute of Telematics Zirkel 2, 76128 Karlsruhe Phone: +49 (0) 721 - 608 6404 Fax: +49 (0) 721 - 608 6789 PGP-Key: http://www.tm.uka.de/~lichtwald/mykey.asc

4 7

Weekly Routing Table Report
by Routing Table Analysis 25 Feb '05

25 Feb '05

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 26 Feb, 2005 Analysis Summary ---------------- BGP routing table entries examined: 156548 Prefixes after maximum aggregation: 91690 Unique aggregates announced to Internet: 75829 Total ASes present in the Internet Routing Table: 19031 Origin-only ASes present in the Internet Routing Table: 16549 Origin ASes announcing only one prefix: 7725 Transit ASes present in the Internet Routing Table: 2482 Transit-only ASes present in the Internet Routing Table: 79 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 23 Prefixes from unregistered ASNs in the Routing Table: 11 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1379580644 Equivalent to 82 /8s, 58 /16s and 186 /24s Percentage of available address space announced: 37.2 Percentage of allocated address space announced: 58.8 Percentage of available address space allocated: 63.2 Total number of prefixes smaller than registry allocations: 72821 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 31231 Total APNIC prefixes after maximum aggregation: 15140 Prefixes being announced from the APNIC address blocks: 29261 Unique aggregates announced from the APNIC address blocks: 15379 APNIC Region origin ASes present in the Internet Routing Table: 2215 APNIC Region origin ASes announcing only one prefix: 647 APNIC Region transit ASes present in the Internet Routing Table: 325 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 175092096 Equivalent to 10 /8s, 111 /16s and 177 /24s Percentage of available APNIC address space announced: 65.0 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 87346 Total ARIN prefixes after maximum aggregation: 52946 Prefixes being announced from the ARIN address blocks: 66670 Unique aggregates announced from the ARIN address blocks: 24362 ARIN Region origin ASes present in the Internet Routing Table: 9886 ARIN Region origin ASes announcing only one prefix: 3580 ARIN Region transit ASes present in the Internet Routing Table: 947 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 239662592 Equivalent to 14 /8s, 72 /16s and 246 /24s Percentage of available ARIN address space announced: 71.4 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 29717 Total RIPE prefixes after maximum aggregation: 20476 Prefixes being announced from the RIPE address blocks: 26601 Unique aggregates announced from the RIPE address blocks: 17648 RIPE Region origin ASes present in the Internet Routing Table: 6338 RIPE Region origin ASes announcing only one prefix: 3347 RIPE Region transit ASes present in the Internet Routing Table: 1080 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 193123920 Equivalent to 11 /8s, 130 /16s and 214 /24s Percentage of available RIPE address space announced: 67.7 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6885 Total LACNIC prefixes after maximum aggregation: 2417 Prefixes being announced from the LACNIC address blocks: 6798 Unique aggregates announced from the LACNIC address blocks: 4016 LACNIC Region origin ASes present in the Internet Routing Table: 421 LACNIC Region origin ASes announcing only one prefix: 126 LACNIC Region transit ASes present in the Internet Routing Table: 80 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 17608192 Equivalent to 1 /8s, 12 /16s and 174 /24s Percentage of available LACNIC address space announced: 52.5 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1358 Total AfriNIC prefixes after maximum aggregation: 711 Prefixes being announced from the AfriNIC address blocks: 908 Unique aggregates announced from the AfriNIC address blocks: 716 AfriNIC Region origin ASes present in the Internet Routing Table: 97 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2177280 Equivalent to 0 /8s, 33 /16s and 57 /24s Percentage of available AfriNIC address space announced: 13.0 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 886 4712 174 Data Communications Bureau 1221 790 1187 562 Telstra Pty Ltd 9583 601 49 18 Satyam Infoway Ltd., 4766 593 3416 284 Korea Internet Exchange for " 4755 469 241 100 Videsh Sanchar Nigam Ltd. Aut 7545 462 74 158 TPG Internet Pty Ltd 17676 403 6060 70 XTAGE CORPORATION 9443 374 77 79 Primus Telecommunications 9929 353 165 37 China Netcom Corp. 2907 348 1839 322 SINET Japan 17557 324 24 149 Pakistan Telecom 10036 296 27 269 C&M Communication Co. Ltd. 7474 285 283 207 Optus Communications Pty Ltd 703 273 355 214 UUNET 2764 258 238 206 connect.com.au pty ltd 9498 244 81 53 BHARTI BT INTERNET LTD. 9800 240 395 71 CHINA UNICOM 4808 237 170 129 CHINANET core WAN North 4802 231 28 140 Wantree Development 17974 229 63 24 PT TELEKOMUNIKASI INDONESIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1461 6609 971 AT&T WorldNet Services 721 1170 21835 318 DLA Systems Automation Center 701 1033 8309 878 UUNET Technologies, Inc. 4323 1031 668 221 Time Warner Telecom 1239 923 2871 654 Sprint 6197 867 379 405 BellSouth Network Solutions, 2386 823 496 611 AT&T Data Communications Serv 18566 767 208 6 Covad Communications 174 711 5521 615 PSINet Inc. 209 648 3466 499 Qwest 3356 591 10867 442 Level 3 Communications, LLC 20115 579 478 300 Charter Communications 3561 560 2374 416 Cable & Wireless USA 852 527 1126 399 Telus Advanced Communications 3602 501 120 93 Sprint Canada, Inc. 6478 494 822 104 AT&T Worldnet Services 22773 474 1090 24 Cox Communications, Inc. Atla 6198 468 567 189 BellSouth Network Solutions, 27364 465 43 18 Armstrong Cable Services 5668 451 91 20 Century Telephone RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 609 2006 500 UUNET - Commercial IP service 3320 295 2992 229 Deutsche Telekom AG 3301 289 1112 277 TeliaNet Sweden 8220 277 466 271 COLT Internet - International 680 253 2041 239 DFN-IP service G-WiN 3246 229 476 223 Song Networks 8708 219 120 197 Romania Data Systems S.A. 13083 217 51 8 Mannesmann Datenverarbeitung 1257 208 709 174 SWIPnet Swedish IP Network 3215 204 1034 78 France Telecom Transpac 5515 187 842 135 Sonera Solution Autonomous Sy 6746 178 47 142 Dynamic Network Technologies, 786 176 1794 176 The JANET IP Service 8866 176 20 16 Bulgarian Telecommunication C 3300 164 185 84 AUCS Communications Services 3269 163 1424 72 TELECOM ITALIA 719 161 322 103 LANLINK autonomous system 25186 141 138 99 France Telecom Transpac's Tra 5400 139 234 123 BT Ignite European Backbone 9121 137 227 19 TTnet Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 361 140 70 ImpSat 8151 335 501 142 UniNet S.A. de C.V. 16814 233 14 6 NSS, S.A. 11172 220 99 54 Servicios Alestra S.A de C.V 6147 205 102 20 Telefonica Del Peru 11664 150 19 24 Keytech SA 7303 146 66 30 Telecom Argentina Stet-France 6505 135 90 91 Global One Communicaoes Ltda 14117 119 7 5 Telefonica del Sur S.A. 6503 118 146 80 AVANTEL, S.A. 11992 107 9 31 Integrated Systems 11556 97 48 3 Cable-Wireless Panama 13999 90 52 9 Mega Cable S.A. de C.V. 11311 88 8 23 Sinectis S.A. 6535 87 7 23 Chilesat Servicios Empresari 14420 87 6 42 ANDINATEL S.A. 5639 82 8 8 Telecommunications Services o 10481 81 32 7 Prima S.A. 4270 77 18 9 Red de Interconexion Universi 15311 77 24 36 Telefonica Empresas AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 268 635 225 The Internet Solution 5536 114 15 18 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 85 16 2 Noor Advanced Technologies AS 2905 84 267 76 The Internetworking Company o 24835 53 34 6 RAYA Telecom - Egypt 8452 42 20 5 TEDATA 6713 35 54 9 Itissalat Al-MAGHRIB 11845 35 9 11 Data Pro Business Online 9129 30 3 2 UUNET Kenya 12455 30 6 7 Jambonet Autonomous system 5713 27 141 24 Telkom SA Ltd 8524 23 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 8346 17 10 11 SONATEL-AS Autonomous System 21280 17 2 3 Swift Global Kenya Ltd.Is an 21491 16 1 3 UTL On-line is RF broadband I 15706 15 4 2 Sudatel Internet Exchange Aut Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 721 1170 852 DLA Systems Automation Center 4323 1031 810 Time Warner Telecom 18566 767 761 Covad Communications 4134 886 712 Data Communications Bureau 9583 601 583 Satyam Infoway Ltd., 6197 867 462 BellSouth Network Solutions, 22773 474 450 Cox Communications, Inc. Atla 27364 465 447 Armstrong Cable Services 5668 451 431 Century Telephone 3602 501 408 Sprint Canada, Inc. 6478 494 390 AT&T Worldnet Services 4755 469 369 Videsh Sanchar Nigam Ltd. Aut 17676 403 333 XTAGE CORPORATION 6467 361 328 E.Spire Communications, Inc. 9929 353 316 China Netcom Corp. 4766 593 309 Korea Internet Exchange for " 7545 462 304 TPG Internet Pty Ltd 9443 374 295 Primus Telecommunications 6140 361 291 ImpSat 20115 579 279 Charter Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc. 64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc. 64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc. 64512 PRIVATE 199.216.148.0/24 15296 Netera Alliance Inc. 65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 65529 PRIVATE 216.152.237.0/24 14697 VDot.Net Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.43.230.0/24 7575 Australian Academic and Rease 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:8 /11:14 /12:62 /13:148 /14:305 /15:564 /16:8291 /17:2422 /18:4127 /19:10093 /20:10735 /21:8570 /22:11847 /23:13076 /24:85468 /25:265 /26:237 /27:98 /28:49 /29:23 /30:83 /31:0 /32:41 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 752 767 Covad Communications 6197 710 867 BellSouth Network Solutions, 7018 634 1461 AT&T WorldNet Services 2386 587 823 AT&T Data Communications Serv 4323 479 1031 Time Warner Telecom 27364 450 465 Armstrong Cable Services 9583 424 601 Satyam Infoway Ltd., 4766 404 593 Korea Internet Exchange for " 5668 381 451 Century Telephone 702 371 609 UUNET - Commercial IP service 1239 371 923 Sprint 6198 335 468 BellSouth Network Solutions, 10036 296 296 C&M Communication Co. Ltd. 6517 288 310 Yipes Communications, Inc. 9929 278 353 China Netcom Corp. 6467 273 361 E.Spire Communications, Inc. 11456 263 310 Carolina Online, Inc. 13609 257 306 Choice One Communications Inc 701 246 1033 UUNET Technologies, Inc. 25844 245 245 Skadden, Arps, Slate, Meagher Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:9 12:1488 13:1 15:9 16:2 17:3 18:4 20:5 24:736 32:65 33:4 38:99 40:55 44:3 47:2 52:3 55:2 56:3 57:23 59:3 60:21 61:705 62:527 63:1864 64:2582 65:2053 66:2716 67:519 68:505 69:912 70:65 71:9 72:71 80:545 81:519 82:331 83:275 84:131 85:122 128:142 129:162 130:94 131:279 132:36 133:1 134:142 135:30 136:191 137:65 138:160 139:53 140:198 141:101 142:140 143:129 144:172 145:44 146:278 147:100 148:266 149:164 150:95 151:63 152:110 153:81 154:3 155:143 156:71 157:81 158:152 159:164 160:67 161:59 162:420 163:84 164:216 165:159 166:130 167:223 168:402 169:133 170:312 171:9 192:5671 193:3089 194:2267 195:1598 196:636 198:3886 199:3257 200:3984 201:52 202:5201 203:6043 204:3687 205:2022 206:2343 207:2741 208:2078 209:3196 210:1571 211:790 212:1157 213:1264 214:242 215:31 216:3641 217:1070 218:189 219:113 220:366 221:88 222:76 End of report

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"AS-set stuffing" experiments using RIS beacons
by Lorenzo Colitti 25 Feb '05

25 Feb '05

[Apologies for duplicate emails] Dear colleagues, In the next few days, the beacon prefixes 84.205.73.0/24 and 84.205.89.0/24 will be used by researchers at the Computer Networks research group at Roma Tre University, in collaboration with the RIPE NCC New Projects Group, to perform studies on network topology discovery. The objective of the experiments is to investigate new methodologies for topology discovery and experimental mechanisms for deducing the routing policies of ISP's, the quality of their connectivity, and more general properties of interdomain topology. The experiments will involve announcing AS-sets of varying lengths behind AS 12654 and are initially scheduled for the last week of February and the first week of March. For further information, or for questions and comments, please contact compunet(a)dia.uniroma3.it or lorenzo(a)ripe.net. On behalf of the Roma Tre Computer Networks research group and the RIPE NCC New Projects group. Regards, Lorenzo Colitti

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The Cidr Report
by cidr-report＠potaroo.net 25 Feb '05

25 Feb '05

This report has been generated at Fri Feb 25 21:44:34 2005 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 18-02-05 152286 104724 19-02-05 152565 104746 20-02-05 152547 104745 21-02-05 152742 104906 22-02-05 152795 104999 23-02-05 152874 105262 24-02-05 152881 104777 25-02-05 152805 104808 AS Summary 18928 Number of ASes in routing system 7726 Number of ASes announcing only one prefix 1445 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 90831616 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 25Feb05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 152964 104867 48097 31.4% All ASes AS4323 1029 225 804 78.1% TWTC Time Warner Telecom AS18566 767 7 760 99.1% CVAD Covad Communications AS4134 871 205 666 76.5% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1149 575 574 50.0% DNIC DoD Network Information Center AS7018 1445 963 482 33.4% ATTW AT&T WorldNet Services AS22773 474 26 448 94.5% CXA Cox Communications Inc. AS27364 465 34 431 92.7% ARMC Armstrong Cable Services AS6197 863 459 404 46.8% BNS-14 BellSouth Network Solutions, Inc AS3602 501 137 364 72.7% SPCA Sprint Canada Inc. AS6478 494 144 350 70.9% ATTW AT&T WorldNet Services AS17676 401 79 322 80.3% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 342 37 305 89.2% CNCNET-CN China Netcom Corp. AS4766 578 286 292 50.5% KIXS-AS-KR Korea Telecom AS1239 919 659 260 28.3% SPRN Sprint AS14654 260 6 254 97.7% WAYPOR-3 Wayport AS9443 378 126 252 66.7% INTERNETPRIMUS-AS-AP Primus Telecommunications AS6140 382 135 247 64.7% IMPSA ImpSat AS9583 601 356 245 40.8% SIFY-AS-IN Sify Limited AS4355 296 60 236 79.7% ERSD EARTHLINK, INC AS25844 244 15 229 93.9% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS6198 455 228 227 49.9% BNS-14 BellSouth Network Solutions, Inc AS23126 242 18 224 92.6% KTEL KMC Telecom, Inc. AS15270 253 36 217 85.8% PDP-14 PaeTec.net -a division of PaeTecCommunications, Inc. AS5668 450 238 212 47.1% CIH-12 CenturyTel Internet Holdings, Inc. AS2386 822 611 211 25.7% ADCS-1 AT&T Data Communications Services AS9498 246 54 192 78.0% BBIL-AP BHARTI BT INTERNET LTD. AS22909 339 147 192 56.6% CMCS Comcast Cable Communications, Inc. AS6517 308 121 187 60.7% YIPS Yipes Communications, Inc. AS6147 205 20 185 90.2% Telefonica del Peru S.A.A. AS6167 262 78 184 70.2% CELLCO Cellco Partnership Total 16041 6085 9956 62.1% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.17.32.0/24 AS5024 BRIDGE-75 BridgeNet, LC 64.17.33.0/24 AS5024 BRIDGE-75 BridgeNet, LC 64.17.37.0/24 AS5024 BRIDGE-75 BridgeNet, LC 64.57.160.0/19 AS3561 SAVVI-3 Savvis 64.92.128.0/19 AS3561 SAVVI-3 Savvis 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 64.209.192.0/18 AS3561 SAVVI-3 Savvis 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 ELISA-AS Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS11814 IGST Information Gateway Services - Toronto 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.200.100.0/24 AS7018 ATTW AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.160.171.0/24 AS7046 UU UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS3541 DISAUN DISA/UNRRA 199.114.136.0/24 AS27044 DNIC DoD Network Information Center 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS27033 DNIC DoD Network Information Center 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS27034 DNIC DoD Network Information Center 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 201.239.0.0/16 AS22047 VTR BANDA ANCHA S.A. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.170.14.0/23 AS6648 ASN-SKYINTERNET BAYANTEL-SKY INTERNET TIER 1 ISP in the Philippines 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 206.108.96.0/19 AS577 BAC-14 Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIIN VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 208.138.48.0/20 AS7955 SOURCE-48 SourceNet Corporation 209.27.51.0/24 AS14132 INTERN-582 Internet Gateway Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.185.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.186.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.187.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.188.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.189.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.190.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.191.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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anycast stability experiment
by Randy Bush 24 Feb '05

24 Feb '05

the verisign gang gave a good presentation of "Life and Times of J-Root" at the recent nanog meeting' see <http://www.nanog.org/mtg-0410/pdf/kosters.pdf>. on foils 27 to 29, they reported non-trivial routing jitter and therefore suggested "DO NOT RUN anycast with stateful transport." on the other hand, for almost a decade, there have been reports of successfully delivery of stateful services over anycast. so one wonders if their measurement was from an abnormal vantage point, or if there are other interesting things going on. as we are curious and inclined to test conjectures by experiment, scientific method and all that, we devised a small experiment in which we would very much appreciate your participation. we wish to collect data on the stability of which actual anycast root server(s) you contact from many points on or near the net's edges, i.e.. your home, datacenter, .... to do this, peter boothe, of university of oregon, has written a script which queries those roots which are known to be widely anycast every few seconds using dig [options] @<foo>.root-servers.net. hostname.bind chaos txt to record which actual unicast-named server was reached. these probes are recorded in a file that looks like, for example 42.666.7.11 Sat Nov 13 01:29:29 UTC 2004 f UDP pao1e.f.root-servers.org Sat Nov 13 01:29:29 UTC 2004 i UDP s1.lnx Sat Nov 13 01:29:30 UTC 2004 j UDP jns4-kgtld.j.root-servers.net Sat Nov 13 01:29:30 UTC 2004 k UDP k1.linx Sat Nov 13 01:29:30 UTC 2004 m UDP M-d3 Sat Nov 13 01:29:30 UTC 2004 c TCP lax1a.c.root-servers.org Sat Nov 13 01:29:31 UTC 2004 f TCP pao1c.f.root-servers.org Sat Nov 13 01:29:31 UTC 2004 i TCP s1.lnx Sat Nov 13 01:29:31 UTC 2004 j TCP jns1-kgtld.j.root-servers.net Sat Nov 13 01:29:32 UTC 2004 k TCP k1.linx Sat Nov 13 01:29:33 UTC 2004 m TCP M-d3 Sat Nov 13 01:29:35 UTC 2004 c UDP lax1a.c.root-servers.org Sat Nov 13 01:29:35 UTC 2004 f UDP pao1e.f.root-servers.org Sat Nov 13 01:29:35 UTC 2004 i UDP s1.lnx Sat Nov 13 01:29:35 UTC 2004 j UDP jns3-kgtld.j.root-servers.net Sat Nov 13 01:29:36 UTC 2004 k UDP k1.linx Sat Nov 13 01:29:36 UTC 2004 m UDP M-d3 which is mailed off to peter's collector once a day. note that your public ip address is the first thing in the file. this is learned by wget (or telnet to port 80, in case you do not have wget installed) to peter's server at oregon, which responds with the public ip address from which you came. this serves two purposes: o we may want to know from where measurements were taken so we can look at routing data to see why anomalies or normalities occurred. o we are concerned about overloading the root servers against which this experiment is running. therefore, the script will not actually perform the probes unless peter's server responds to the ip address query. this allows peter to throttle or disable the experiment should 10,000 people decide to run it. it might also be used to select probers to concentrate on 'interesting' probe locales in the internet topology. it's just a short shell script, so you should be able to easily feel comfortable that it will not make you vulnerable to anthing other than possible expulsion from the nanog mailing list :-). as it probes only a select list of anycast root servers, and does so every two seconds, this should not place any significant load on the servers or your machine. as our conjecture involves verisign's implication of stateful, e.g., tcp, connections, early reviewers of the experimental setup pushed us to test tcp as well as udp queries. as a tcp query is estimated to have many more packets than a udp query, the current code does one tcp probe every ten udp queries, i.e., around once every 20 seconds. we would really appreciate it if you would run this for a day or three. a tarball with the script and a readme can be found at <http://rip.psg.com/~randy/anycast_gatherer-1.4.tar.gz> [ fyi, my personal bet is that it's usually pretty stable except for sites in strangely unstable routing environments. but i am under my quota of wrong for the week. ] thanks! and many thanks to the early reviewers of the experiment. randy, peter, and friends

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New Document available: RIPE-343
by RIPE NCC Document Announcement Service 23 Feb '05

23 Feb '05

[apologies for duplicate e-mails] New RIPE Document Announcement -------------------------------------- A revised document is available from the RIPE document store. Ref: ripe-343 Title: IPv6 Address Space Management Author: Paul Wilson, Raymond Plzak, Axel Pawlik Date: 22 February 2005 Format: PS=53986 TXT=13567 Obsoletes: ripe-261 Short content description ------------------------- This document provides the management process for IPv6 global unicast address space whereby address allocations are made from a single global pool according to a "sparse allocation" algorithm. In this version, previously published as ripe-261, we fixed an error in the 6-bit address space table. Accessing the RIPE document store --------------------------------- You can access the RIPE documents in HTML format via our website at the following URL:. http://www.ripe.net/docs/ipv6-sparse.html The RIPE Document Store is also available via anonymous FTP to ftp.ripe.net, in the directory ripe/docs. The URLs for the new documents on the FTP-server are: ftp://ftp.ripe.net/ripe/docs/ripe-343.pdf PDF version ftp://ftp.ripe.net/ripe/docs/ripe-343.txt plain text version Kind Regards, RIPE NCC Document Announcement Service

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