- routing-wg - mailman.ripe.net

Distributing K-Root Service by Anycast Routing
by Daniel Karrenberg 05 Nov '02

05 Nov '02

Dear Colleagues, below you find the proposal to start distributing the service of k.root-servers.net by using anycast. I welcome comments and suggestions either privately or on the DNS WG list. I would like to see a good discussion so that we can proceed with support from the RIPE community. Can we have this discussion on the DNS WG list too please? In particular I would like to hear technical suggestions for Appendix A. Thanks Daniel --------- Distributing K-Root Service by Anycast Routing of 193.0.14.129 Daniel Karrenberg <daniel.karrenberg(a)ripe.net> $Id: k-any.ms,v 1.9 2002/11/05 12:03:32 dfk Exp $ ABSTRACT This memo proposes to distribute the DNS ser- vice provided by k.root-servers.net across multi- ple locations in the Internet topology. It dis- cusses the motivation for and the principles of implementation. A first inventory of detailed issues is provided in an appendix. 1. Introduction DNS root name servers need to be accessible by Internet hosts in order for the DNS to function properly. Accessi- bility is determined by the ability of the server to handle a given query load and by the connectivity of the server to the rest of the Internet. The RIPE NCC operates k.root-servers.net (K-root) in the RIPE region in order to help safeguard the quality of the DNS in the Internet and in the RIPE region in particular. The RIPE NCC obtains guidance from RIPE. For K-root the connectivity issue has been addressed by placing it at the LINX, a topologically very well connected point. The server load issue has been addressed by deploy- ing successive generations of hardware with increased pro- cessing power and by distributing the load locally among a number of machines at different LINX sites. A cold spare system has been available in Amsterdam at all times to pro- vide continuity in case of catastrophic failures at the pri- mary server location. Over the years this set-up has pro- vided very reliable service. However issues about differences in connectivity to the ser- vice across the RIPE region have been raised repeatedly. A more distributed provision of the service is generally seen as positive because of - lower network delays due to shorter paths between clients and servers, - less dependence on connectivity to a single location, - better load and DDoS attack resiliance because of dis- tributed servers, - more overall redundancy. For these reasons numerous organisations have offered to host additional servers operated by the RIPE NCC. So far this has not been considered because the number of unique IP addresses at which the service can be provided is exhausted by currently assigned servers. 2. Scope of this Memo This memo proposes to deploy multiple servers providing k.root-servers.net name service across the RIPE region, each using the same IP address. This is commonly called 'any- casting'. A detailed description of one implementation can be found in RFC3258. The intention of this memo is to establish the principles of this, inventarise the major issues and request comments from the RIPE community and other interested parties. An initial inventory of detailed issues is provided as an appendix. 3. Proposal Simply put the RIPE NCC will provide K-root name service at multiple locations dispersed over the Internet topology but at the same IP address. No DNS client/resolver changes are necessary. The service will appear exactly the same for the users. Normal Internet routing will distribute the traffic among the different instances of K-root. This will be implemented by installing multiple copies of the current server sets at different points and announcing the current prefix 193.0.14/24 from these points. The main challenge with this set-up is to ensure consis- tency: operation - All servers will be operated in a consistent way by the RIPE NCC. They will have appropriate out-of-band access path to ensure that the operations centre can access them. monitoring - The availability and responses will be monitored by dedicated monitoring systems installed at multiple locations. Also the BGP propagation of the prefix 193.0.14/24 will be monitored constantly by the exist- ing remote route collectors. [http://www.ripe.net/ris] Users will be able to identify the particular instance they are using by published methods using DNS queries. [draft-ietf-dnsop-serverid] correctness - The correctness and authenticity of the root zone data will eventually be guaranteed using DNSSEC. Until this can be deployed the current method will need to be employed: ISPs will need to closely monitor where they route traffic to 193.0.14/24 and from where they accept traffic from that address. The RIPE NCC will publish and maintain a list with the locations of the k-root instances, the BGP autonomous system numbers of their immediate neighbors and any other information that can help ISPs and others to ensure that they reach an authentic instance of K-root. This list will be main- tained until appropriate routing security technology is widely deployed. The RIPE NCC and K-root itself are well suited for this mode of operation. IANA asked the RIPE NCC to operate K-root, the geographic and topological location of K-root was not specified in any way other than "somewhere in the RIPE region". The RIPE NCC was chosen because it is neutral and professional but above all directly accountable to RIPE and its membership. The location at the LINX was subsequently chosen based on evaluation of the Internet topology in the region and a rec- ommendation by the RIPE DNS working group. Distributing K- root over a number of places is a natural continuation of this policy. In addition to operating K-root at a remote location the RIPE NCC has considerable experience in operating dis- tributed services. The Test Traffic Measurements Service operates more than 80 machines all over the world to collect performance measurements. Some of these can be used to mon- itor the DNS service of K-root as well. The Routing Infor- mation Service operates 9 remote route collectors at exchange points all over the world to collect BGP routing information. These route collectors will be used to monitor the routing of 193.0.14/24. At any point in time there is a trade-off between the added benefit of adding more servers and the difficulty of operat- ing them consistently. The optimal number of servers depends on a large number of constantly changing factors. It needs to be evaluated continuously as things progress. 4. Operational & Funding Models For the purpose of stability and for gaining experience all instances of K-root will be operated by the RIPE NCC. This ensures smooth transitions, consistency and correctness of root zone data. After the initial deployment there are a number of possible operational and funding models. 4.1. Traditional Traditionally K-root operations have been part of general RIPE NCC activities and thus have been collectively funded by the RIPE NCC membership. This is an appropriate funding model as all members benefit from stable root name service. It is also easy to administer. Difficulties may arise when the number of locations is such that the operational costs increase very significantly. Another important drawback of this model is that the number of additional sites will be limited by available funds and the sites will have to be determined by a selection procedure based on criteria including - position in Internet topology, - position relative to existing K-root instances, - local operations support, - operational requirements [rfc2870], - commitment to fund operations at a later stage. 4.2. Location Fees The drawbacks of the traditional model can be largely over- come by charging the organisations hosting K-root instances a fee that covers the operational costs. This obviously scales better and requires less of a beauty contest, because the funds available will more closely match the operational costs. It is quite possible that the initial demand will be higher than the operational capabilities of the RIPE NCC. Also it should be observed that in funding and some other aspects this is exactly the opposite of the traditional model: In the traditional model the RIPE NCC pays facilities management fees to the hosts whereas in this model the hosts pay. Transition should be planned carefully. 4.3. Operated and Funded Decentrally In this model anyone who wishes would be able to operate a K-root instance. This model has such serious problems with guaranteeing stability and consistency that it cannot be implemented today or in the near future. The minimum requirement for this operational mode is a zone signing mechanism that ensures consistency and authenticity of root zone data. Implementing this also requires a changed model of service responsibility as it is obviously impossible to hold any one entity responsible for the service. While this may ultimately scale the best, it is extremely premature at this point. We propose to continue with the traditional model for now and explore other models while gaining operational experi- ence. The associated selection procedures will be executed by the RIPE NCC and guided by the relevant requirements RFCs and the RIPE DNS working group. 5. Implementation Plan 5.1. Initial BGP change The routing announcements of the current server prefix 193.0.14/24 will change from AS5459 (LINX) to the dedicated new K-root autonomous system number AS25152. ISPs need to be aware of this and adapt their routing fil- ters accordingly. It is recommended that ISPs who do not already do so, take precautions, safeguaring that they receive this prefix from an authentic K-root via a trusted path and that they route traffic to it via trusted paths as far as possible. At the same time an initial set of BGP and DNS service monitors will be deployed. 5.2. Move the Cold Standby to Service The current cold standby server at the RIPE NCC will be activated as a regular server. AS25152 will be announced also by the RIPE NCC at the AMS-IX. As the server is already available and configured this can be done fairly rapidly. The distribution of the load, BGP routing informa- tion and other operational data will be gathered and evalu- ated. ISPs will have the opportunity to test this set-up and provide feedback. In case of problems the RIPE NCC instance of K-root will be deactivated quickly, returning to the previous service level. 5.3. Implement Further Instances While monitoring continuously a number of further instances of K-root will be deployed. Currently we expect this to be about 5 additional instances. This number is limited by operational and monitoring capacity. It is important not to deploy more instances than can safely be operated and moni- tored. Especially the capacity to detect and correct prob- lems in this distributed set-up needs to be carefully moni- tored. 5.4. Spreading Further Planning further than this is currently difficult because of lack of experience with distributed K-root operations and possible funding models. Acknowledgements The author would like to thank Joao Silva Damas for comments on an earlier draft as well as Andrei Robachevsky and Henk Uijterwaal who provided comments on recent drafts. Appendix A - Detailed Issues Using a router or having a server speak BGP? Withdrawing BGP announcements based on service availability? Distributed service monitoring: Using current RIPE NCC oper- ated machines all over the world is an easy option. Maybe distributing automatic monitoring software to be run by vol- unteers is another. What is essentially needed is to try a small number of queries periodically including the query identifying the instance of the server. Then transmitting the results back to a (set of) collection point(s). Distributed BGP Monitoring: The RIS can be used for this. Coverage should be sufficient. Information Campaign: What is needed to reach all ISPs that need to know? How long a lead time do they need for the var- ious stages of the deployment?

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The Cidr Report
by cidr-report＠potaroo.net 01 Nov '02

01 Nov '02

This report has been generated at Fri Nov 1 21:44:58 2002 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 25-10-02 114752 82664 26-10-02 115193 82582 26-10-02 115135 82541 28-10-02 115001 82653 29-10-02 115335 82760 30-10-02 115374 82790 31-10-02 115340 82890 01-11-02 115442 82880 AS Summary 13957 Number of ASes in routing system 5465 Number of ASes announcing only one prefix 1748 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73146368 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 01Nov02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 115457 82891 32566 28.2% All ASes AS3908 1076 564 512 47.6% SUPERNETASBLK SuperNet, Inc. AS701 1748 1265 483 27.6% ALTERNET-AS UUNET Technologies, Inc. AS7843 782 330 452 57.8% ADELPHIA-AS Adelphia Corp. AS2828 487 112 375 77.0% XO-AS15 XO Communications AS6197 457 100 357 78.1% BATI-ATL BellSouth Network Solutions, Inc AS7018 1344 993 351 26.1% ATT-INTERNET4 AT&T WorldNet Services AS4323 516 181 335 64.9% TW-COMM Time Warner Communications, Inc. AS18566 337 4 333 98.8% COVAD Covad Communications AS1221 1196 873 323 27.0% ASN-TELSTRA Telstra Pty Ltd AS209 629 336 293 46.6% ASN-QWEST Qwest AS7046 585 299 286 48.9% UUNET-CUSTOMER UUNET Technologies, Inc. AS6347 354 82 272 76.8% DIAMOND SAVVIS Communications Corporation AS4355 388 127 261 67.3% ERMS-EARTHLNK EARTHLINK, INC AS4151 330 89 241 73.0% USDA-1 USDA AS705 441 202 239 54.2% ASN-ALTERNET UUNET Technologies, Inc. AS1239 887 662 225 25.4% SPRINTLINK Sprint AS6198 403 180 223 55.3% BATI-MIA BellSouth Network Solutions, Inc AS852 689 467 222 32.2% ASN852 Telus Advanced Communications AS1 655 437 218 33.3% GNTY-1 Genuity AS4814 233 15 218 93.6% CHINANET-BEIJING-AP China Telecom (Group)Beijing Telecom CompanyBeijing China AS7132 281 71 210 74.7% SBIS-AS Southwestern Bell Internet Services AS6140 263 65 198 75.3% IMPSAT-USA ImpSat USA, Inc. AS17557 320 122 198 61.9% PKTELECOM-AS-AP APNIC ASN block AS22927 216 20 196 90.7% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS6595 248 57 191 77.0% DODDSEUR DoD Education Activity Network Assistance Center AS17676 226 35 191 84.5% GIGAINFRA APNIC ASN block AS690 517 331 186 36.0% MERIT-AS-27 Merit Network Inc. AS4134 296 114 182 61.5% ERX-CHINALINK Data Communications Bureau AS2048 265 88 177 66.8% LANET-1 State of Louisiana AS2548 403 244 159 39.5% ICIX-MD-AS Business Internet, Inc. Total 16572 8465 8107 48.9% Top 30 total 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)lists.apnic.net routing-wg(a)ripe.net afnog(a)afnog.org

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Weekly Routing Table Report
by Routing Table Analysis 01 Nov '02

01 Nov '02

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 For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 01 Nov, 2002 Analysis Summary ---------------- BGP routing table entries examined: 116941 Prefixes after maximum aggregation: 74969 Unique aggregates announced to Internet: 55913 Total ASes present in the Internet Routing Table: 14003 Origin-only ASes present in the Internet Routing Table: 12144 Origin ASes announcing only one prefix: 5459 Transit ASes present in the Internet Routing Table: 1859 Transit-only ASes present in the Internet Routing Table: 61 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 23 Illegal AS announcements present in the Routing Table: 7 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 35 Number of addresses announced to Internet: 1182432648 Equivalent to 70 /8s, 122 /16s and 125 /24s Percentage of available address space announced: 31.9 Percentage of allocated address space announced: 58.5 Percentage of available address space allocated: 54.6 Total number of prefixes smaller than registry allocations: 48987 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 19110 Total APNIC prefixes after maximum aggregation: 11485 Prefixes being announced from the APNIC address blocks: 17593 Unique aggregates announced from the APNIC address blocks: 11202 APNIC Region origin ASes present in the Internet Routing Table: 1628 APNIC Region origin ASes announcing only one prefix: 516 APNIC Region transit ASes present in the Internet Routing Table: 276 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 99956160 Equivalent to 5 /8s, 245 /16s and 53 /24s Percentage of available APNIC address space announced: 65.7 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73227 Total ARIN prefixes after maximum aggregation: 46440 Prefixes being announced from the ARIN address blocks: 51538 Unique aggregates announced from the ARIN address blocks: 15445 ARIN Region origin ASes present in the Internet Routing Table: 7868 ARIN Region origin ASes announcing only one prefix: 2616 ARIN Region transit ASes present in the Internet Routing Table: 741 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 182350304 Equivalent to 10 /8s, 222 /16s and 113 /24s Percentage of available ARIN address space announced: 67.9 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 19747 Total RIPE prefixes after maximum aggregation: 14961 Prefixes being announced from the RIPE address blocks: 16441 Unique aggregates announced from the RIPE address blocks: 11016 RIPE Region origin ASes present in the Internet Routing Table: 4130 RIPE Region origin ASes announcing only one prefix: 2245 RIPE Region transit ASes present in the Internet Routing Table: 760 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 14 Number of RIPE addresses announced to Internet: 118798048 Equivalent to 7 /8s, 20 /16s and 182 /24s Percentage of available RIPE address space announced: 78.7 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 4851 Total LACNIC prefixes after maximum aggregation: 2083 Prefixes being announced from the LACNIC address blocks: 4215 Unique aggregates announced from the LACNIC address blocks: 2658 LACNIC Region origin ASes present in the Internet Routing Table: 319 LACNIC Region origin ASes announcing only one prefix: 82 LACNIC Region transit ASes present in the Internet Routing Table: 69 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 11637760 Equivalent to 0 /8s, 177 /16s and 148 /24s Percentage of available LACNIC address space announced: 69.4 LACNIC AS Blocks 26592 - 26623 LACNIC Address Blocks 200/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1189 1169 866 Telstra Pty Ltd 703 396 367 314 UUNET 2907 350 1751 330 SINET Japan 2764 335 356 307 connect.com.au pty ltd 17557 320 23 120 Pakistan Telecom 4134 296 2287 98 Data Communications Bureau 7474 295 275 201 Optus Communications Pty Ltd 4755 279 138 74 Videsh Sanchar Nigam Ltd. Aut 4766 250 1808 158 Korea Internet Exchange for " 4814 233 79 15 China Telecom (Group) 17676 226 3538 32 XTAGE CORPORATION 9443 185 57 73 Primus Telecommunications 9583 164 32 6 Satyam Infoway Ltd., 4515 139 102 77 Star Internet Services Ltd. 9768 135 385 74 Korea Telecom 4716 130 738 124 TTnet 7657 129 24 90 The Internet Group Limited 9800 122 188 24 CHINA UNICOM 4739 117 56 108 Commerical Internet eXchange 4713 112 1044 101 NTT Communications Corporatio ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1778 9156 1263 UUNET Technologies, Inc. 7018 1342 7185 938 AT&T 3908 1089 1669 513 Supernet, Inc. 1239 890 3170 662 Sprint 7843 783 374 311 Adelphia Corp. 852 688 1163 466 Telus Advanced Communications 1 665 8106 439 GENUITY 209 636 2049 335 Qwest 7046 587 876 292 UUNET Technologies, Inc. 690 517 75 324 Merit Network 4323 516 439 164 Time Warner Communications, I 2828 498 610 120 XO Communications 705 443 134 203 UUNET Technologies, Inc. 6197 439 233 200 BellSouth Network Solutions, 3549 413 728 297 Global Crossing 2548 403 1115 244 Business Internet, Inc. 6198 400 182 197 BellSouth Network Solutions, 4355 388 306 109 EarthLink, Inc. 19029 388 127 30 New Edge Networks 2914 366 2022 359 Verio, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 838 2367 692 UUNET - Commercial IP service 3301 377 1163 334 TeliaNet Sweden 3215 308 789 172 France Telecom Transpac 3320 245 1964 222 Deutsche Telekom AG 680 238 2151 234 DFN-IP service G-WiN 5515 210 783 175 Sonera Solution Autonomous Sy 1257 209 415 204 SWIPnet Swedish IP Network 5400 196 84 110 BT Ignite European Backbone 719 191 306 130 LANLINK autonomous system 786 176 1873 176 The JANET IP Service 2856 170 1302 132 BTnet UK Regional network 8708 159 41 146 Romania Data Systems S.A. 3303 143 517 142 Swisscom Ltd 12302 123 18 30 MobiFon S.A. 3246 120 373 116 Song Networks 8220 114 169 106 COLT Internet - International 3269 107 721 63 TELECOM ITALIA 3233 106 10 8 RNC - Romanian Natioanal R&D 2874 99 85 39 Global One Services AB 5511 98 192 82 France Telecom LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 254 114 58 ImpSat USA, Inc. 8151 212 346 111 UniNet S.A. de C.V. 7303 183 28 52 Telecom Argentina Stet-France 11172 168 88 34 Servicios Alestra S.A de C.V 6503 150 159 107 AVANTEL, S.A. 13999 127 36 8 Mega Cable S.A. de C.V. 16814 106 7 12 NSS, S.A. 10620 99 6 30 TVCABLE BOGOTA 11992 80 8 32 Integrated Systems 11340 78 2 29 Red Universitaria Nacional 15311 75 26 32 Telefonica Empresas 1916 73 409 40 Fundacao de Amparo a Pesquisa 4270 68 18 10 Red de Interconexion Universi 7984 64 27 41 Global One Colombia 4926 63 4 51 Telintar S.A. 2277 62 16 3 ECUANET - CORPORACION ECUATOR 8065 61 6 16 Empresas Publicas de Medellin 15034 60 5 34 TIBA SA 11664 55 5 11 Keytech SA 6535 54 4 15 Chilesat Servicios Empresari Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 3908 1089 576 Supernet, Inc. 7843 783 472 Adelphia Corp. 7018 1342 404 AT&T 2828 498 378 XO Communications 19029 388 358 New Edge Networks 4323 516 352 Time Warner Communications, I 18566 337 333 Covad Communications 1221 1189 323 Telstra Pty Ltd 4151 330 314 USDA 1580 319 306 ANOSCEUR 209 636 301 Qwest 7046 587 295 UUNET Technologies, Inc. 4355 388 279 EarthLink, Inc. 6347 355 279 SAVVIS Communications Corpora 376 344 242 Reseau Interordinateurs Scien 705 443 240 UUNET Technologies, Inc. 6197 439 239 BellSouth Network Solutions, 1239 890 228 Sprint 1 665 226 GENUITY 852 688 222 Telus Advanced Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65025 PRIVATE 81.26.65.0/24 11042 Orion Network System 65010 PRIVATE 168.167.21.0/24 11042 Orion Network System 65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 GENUITY 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.236.0.0/16 568 DISO-UNRRA 192.31.242.0/24 771 NASA Ames Research Center 192.44.0.0/19 702 UUNET - Commercial IP service 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.91.198.0/24 2568 CTS Network Services 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.136.136.0/24 7046 UUNET Technologies, Inc. 192.136.136.0/22 568 DISO-UNRRA 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.156.164.0/24 19548 Adelphia Business Solutions 192.172.0.0/19 568 DISO-UNRRA 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:5 /10:8 /11:12 /12:46 /13:90 /14:240 /15:428 /16:7314 /17:1510 /18:2749 /19:7892 /20:7503 /21:5370 /22:8232 /23:9995 /24:64809 /25:172 /26:190 /27:109 /28:80 /29:51 /30:91 /31:0 /32:28 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 3908 641 1089 Supernet, Inc. 7843 593 783 Adelphia Corp. 702 509 838 UUNET - Commercial IP service 701 495 1778 UUNET Technologies, Inc. 690 465 517 Merit Network 7018 426 1342 AT&T 2828 382 498 XO Communications 19029 354 388 New Edge Networks 6197 332 439 BellSouth Network Solutions, 18566 332 337 Covad Communications 209 316 636 Qwest 6198 316 400 BellSouth Network Solutions, 1580 305 319 ANOSCEUR 1239 274 890 Sprint 7046 273 587 UUNET Technologies, Inc. 3215 233 308 France Telecom Transpac 11492 225 230 Cable One 3301 223 377 TeliaNet Sweden 4355 219 388 EarthLink, Inc. 7066 205 306 Virginia Polytechnic Institut Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:5 12:578 13:10 15:4 17:2 20:5 24:901 25:1 32:43 38:26 40:11 44:1 55:1 57:15 61:368 62:253 63:1915 64:1382 65:1638 66:1213 67:123 68:200 69:16 80:289 81:62 128:128 129:107 130:21 131:63 132:9 133:2 134:135 135:7 136:410 137:108 138:217 139:78 140:157 141:86 142:81 143:46 144:147 145:16 146:251 147:226 148:252 149:77 150:41 151:88 152:295 153:36 154:8 155:106 156:103 157:106 158:78 159:150 160:20 161:74 162:130 163:84 164:93 165:133 166:94 167:306 168:305 169:59 170:228 171:6 192:5427 193:2383 194:2005 195:836 196:438 198:3617 199:3085 200:2565 202:3534 203:4859 204:3244 205:2125 206:2359 207:2469 208:2564 209:2738 210:616 211:279 212:864 213:771 214:10 215:19 216:3216 217:506 218:48 219:3 End of report

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Draft Minutes from Routing WG at RIPE 43
by Joao Luis Silva Damas 29 Oct '02

29 Oct '02

Dear WG, The Draft Minutes from the Routing WG at RIPE 43 are now available on http://www.ripe.net/ripe/wg/routing/r43-minutes.html All comments are appreciated. Please send them before the end of November, so the minutes can be made final. Best Regards, Joao Damas Standing for the Routing WG chair at RIPE 43

1 0

The Cidr Report
by cidr-report＠potaroo.net 25 Oct '02

25 Oct '02

This report has been generated at Fri Oct 25 21:44:47 2002 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 18-10-02 114704 82884 19-10-02 115116 82872 20-10-02 114956 82781 21-10-02 114861 82208 22-10-02 115010 82457 23-10-02 115086 82530 24-10-02 115044 82513 25-10-02 114752 82519 AS Summary 13926 Number of ASes in routing system 5448 Number of ASes announcing only one prefix 1750 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73146368 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 25Oct02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 115124 82508 32616 28.3% All ASes AS3908 1062 559 503 47.4% SUPERNETASBLK SuperNet, Inc. AS701 1750 1260 490 28.0% ALTERNET-AS UUNET Technologies, Inc. AS7843 759 337 422 55.6% ADELPHIA-AS Adelphia Corp. AS2828 472 102 370 78.4% XO-AS15 XO Communications AS7018 1361 1003 358 26.3% ATT-INTERNET4 AT&T WorldNet Services AS7132 415 70 345 83.1% SBIS-AS Southwestern Bell Internet Services AS6198 419 80 339 80.9% BATI-MIA BellSouth Network Solutions, Inc AS4323 519 181 338 65.1% TW-COMM Time Warner Communications, Inc. AS1221 1196 874 322 26.9% ASN-TELSTRA Telstra Pty Ltd AS18566 326 4 322 98.8% COVAD Covad Communications AS7046 587 299 288 49.1% UUNET-CUSTOMER UUNET Technologies, Inc. AS852 737 458 279 37.9% ASN852 Telus Advanced Communications AS6347 350 75 275 78.6% DIAMOND SAVVIS Communications Corporation AS4355 385 125 260 67.5% ERMS-EARTHLNK EARTHLINK, INC AS705 442 203 239 54.1% ASN-ALTERNET UUNET Technologies, Inc. AS4151 292 55 237 81.2% USDA-1 USDA AS209 572 338 234 40.9% ASN-QWEST Qwest AS1239 885 663 222 25.1% SPRINTLINK Sprint AS1 651 434 217 33.3% GNTY-1 Genuity AS4814 232 15 217 93.5% CHINANET-BEIJING-AP China Telecom (Group)Beijing Telecom CompanyBeijing China AS17557 314 118 196 62.4% PKTELECOM-AS-AP APNIC ASN block AS22927 215 20 195 90.7% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS690 517 324 193 37.3% MERIT-AS-27 Merit Network Inc. AS6140 258 65 193 74.8% IMPSAT-USA ImpSat USA, Inc. AS6595 249 56 193 77.5% DODDSEUR DoD Education Activity Network Assistance Center AS17676 224 34 190 84.8% GIGAINFRA APNIC ASN block AS4134 296 113 183 61.8% ERX-CHINALINK Data Communications Bureau AS2048 265 88 177 66.8% LANET-1 State of Louisiana AS174 290 133 157 54.1% PSINET PSINet Inc. AS2548 401 244 157 39.2% ICIX-MD-AS Business Internet, Inc. Total 16441 8330 8111 49.3% Top 30 total 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)lists.apnic.net routing-wg(a)ripe.net afnog(a)afnog.org

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Weekly Routing Table Report
by Routing Table Analysis 25 Oct '02

25 Oct '02

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 For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 25 Oct, 2002 Analysis Summary ---------------- BGP routing table entries examined: 116434 Prefixes after maximum aggregation: 74749 Unique aggregates announced to Internet: 55706 Total ASes present in the Internet Routing Table: 13962 Origin-only ASes present in the Internet Routing Table: 12107 Origin ASes announcing only one prefix: 5433 Transit ASes present in the Internet Routing Table: 1855 Transit-only ASes present in the Internet Routing Table: 58 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 7 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 35 Number of addresses announced to Internet: 1180885064 Equivalent to 70 /8s, 98 /16s and 224 /24s Percentage of available address space announced: 31.9 Percentage of allocated address space announced: 58.4 Percentage of available address space allocated: 54.6 Total number of prefixes smaller than registry allocations: 48540 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 19018 Total APNIC prefixes after maximum aggregation: 11461 Prefixes being announced from the APNIC address blocks: 17517 Unique aggregates announced from the APNIC address blocks: 11098 APNIC Region origin ASes present in the Internet Routing Table: 1629 APNIC Region origin ASes announcing only one prefix: 520 APNIC Region transit ASes present in the Internet Routing Table: 275 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 99485600 Equivalent to 5 /8s, 238 /16s and 7 /24s Percentage of available APNIC address space announced: 65.4 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72955 Total ARIN prefixes after maximum aggregation: 46335 Prefixes being announced from the ARIN address blocks: 51381 Unique aggregates announced from the ARIN address blocks: 15434 ARIN Region origin ASes present in the Internet Routing Table: 7852 ARIN Region origin ASes announcing only one prefix: 2602 ARIN Region transit ASes present in the Internet Routing Table: 744 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 182036960 Equivalent to 10 /8s, 217 /16s and 169 /24s Percentage of available ARIN address space announced: 67.8 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 19662 Total RIPE prefixes after maximum aggregation: 14884 Prefixes being announced from the RIPE address blocks: 16348 Unique aggregates announced from the RIPE address blocks: 10971 RIPE Region origin ASes present in the Internet Routing Table: 4107 RIPE Region origin ASes announcing only one prefix: 2231 RIPE Region transit ASes present in the Internet Routing Table: 755 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 118330816 Equivalent to 7 /8s, 13 /16s and 149 /24s Percentage of available RIPE address space announced: 78.4 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 4793 Total LACNIC prefixes after maximum aggregation: 2069 Prefixes being announced from the LACNIC address blocks: 4118 Unique aggregates announced from the LACNIC address blocks: 2656 LACNIC Region origin ASes present in the Internet Routing Table: 319 LACNIC Region origin ASes announcing only one prefix: 80 LACNIC Region transit ASes present in the Internet Routing Table: 68 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 11565056 Equivalent to 0 /8s, 176 /16s and 120 /24s Percentage of available LACNIC address space announced: 68.9 LACNIC AS Blocks 26592 - 26623 LACNIC Address Blocks 200/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1189 1169 867 Telstra Pty Ltd 703 395 368 313 UUNET 2907 350 1751 330 SINET Japan 2764 335 356 307 connect.com.au pty ltd 17557 314 23 117 Pakistan Telecom 4134 295 2284 99 Data Communications Bureau 7474 294 275 201 Optus Communications Pty Ltd 4755 277 138 74 Videsh Sanchar Nigam Ltd. Aut 4766 250 1808 158 Korea Internet Exchange for " 4814 232 79 15 China Telecom (Group) 17676 224 3506 31 XTAGE CORPORATION 9443 185 57 73 Primus Telecommunications 9583 160 32 5 Satyam Infoway Ltd., 4515 139 102 77 Star Internet Services Ltd. 9768 136 385 75 Korea Telecom 4716 129 736 123 TTnet 7657 128 23 90 The Internet Group Limited 9800 122 188 24 CHINA UNICOM 4739 117 56 108 Commerical Internet eXchange 4713 112 1044 101 NTT Communications Corporatio ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1777 9140 1264 UUNET Technologies, Inc. 7018 1358 7187 946 AT&T 3908 1075 1668 512 Supernet, Inc. 1239 887 3186 662 Sprint 7843 756 373 318 Adelphia Corp. 852 737 1146 457 Telus Advanced Communications 1 659 8042 434 GENUITY 7046 589 892 291 UUNET Technologies, Inc. 209 577 2064 336 Qwest 4323 519 439 164 Time Warner Communications, I 690 517 75 324 Merit Network 2828 472 598 102 XO Communications 705 444 135 204 UUNET Technologies, Inc. 7132 415 673 70 Southwestern Bell Internet Se 3549 410 726 296 Global Crossing 2548 401 1115 244 Business Internet, Inc. 6197 399 601 40 BellSouth Network Solutions, 6198 397 180 197 BellSouth Network Solutions, 4355 385 306 109 EarthLink, Inc. 2914 370 2022 363 Verio, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 872 2374 724 UUNET - Commercial IP service 3301 382 1164 335 TeliaNet Sweden 3215 309 789 172 France Telecom Transpac 3320 243 1964 220 Deutsche Telekom AG 680 238 2151 234 DFN-IP service G-WiN 5515 211 783 176 Sonera Solution Autonomous Sy 1257 207 414 202 SWIPnet Swedish IP Network 5400 200 83 95 BT Ignite European Backbone 719 190 306 130 LANLINK autonomous system 786 176 1873 176 The JANET IP Service 2856 170 1302 132 BTnet UK Regional network 8708 158 41 147 Romania Data Systems S.A. 3303 142 516 141 Swisscom Ltd 12302 121 17 28 MobiFon S.A. 3246 120 373 115 Song Networks 8220 114 168 105 COLT Internet - International 3233 106 10 8 RNC - Romanian Natioanal R&D 3269 106 690 64 TELECOM ITALIA 5511 102 192 85 France Telecom 2874 99 85 39 Global One Services AB LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 249 114 58 ImpSat USA, Inc. 8151 209 330 110 UniNet S.A. de C.V. 7303 180 28 50 Telecom Argentina Stet-France 11172 167 72 33 Servicios Alestra S.A de C.V 6503 155 191 109 AVANTEL, S.A. 16814 106 7 12 NSS, S.A. 13999 101 20 7 Mega Cable S.A. de C.V. 10620 99 6 30 TVCABLE BOGOTA 11340 80 2 25 Red Universitaria Nacional 11992 80 8 30 Integrated Systems 15311 76 26 32 Telefonica Empresas 1916 74 425 41 Fundacao de Amparo a Pesquisa 4270 67 18 10 Red de Interconexion Universi 4926 63 4 51 Telintar S.A. 7984 63 27 41 Global One Colombia 2277 62 16 3 ECUANET - CORPORACION ECUATOR 15034 60 5 32 TIBA SA 7927 59 5 40 Global One Venezuela 8065 59 6 15 Empresas Publicas de Medellin 6535 54 4 15 Chilesat Servicios Empresari Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 3908 1075 563 Supernet, Inc. 7843 756 438 Adelphia Corp. 7018 1358 412 AT&T 2828 472 370 XO Communications 6197 399 359 BellSouth Network Solutions, 4323 519 355 Time Warner Communications, I 7132 415 345 Southwestern Bell Internet Se 1221 1189 322 Telstra Pty Ltd 18566 326 322 Covad Communications 1580 320 307 ANOSCEUR 7046 589 298 UUNET Technologies, Inc. 852 737 280 Telus Advanced Communications 6347 351 278 SAVVIS Communications Corpora 4355 385 276 EarthLink, Inc. 4151 292 276 USDA 209 577 241 Qwest 705 444 240 UUNET Technologies, Inc. 376 334 231 Reseau Interordinateurs Scien 1239 887 225 Sprint 1 659 225 GENUITY List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65025 PRIVATE 81.26.65.0/24 11042 Orion Network System 65010 PRIVATE 168.167.21.0/24 11042 Orion Network System 65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 GENUITY 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.236.0.0/16 568 DISO-UNRRA 192.31.242.0/24 771 NASA Ames Research Center 192.44.0.0/19 702 UUNET - Commercial IP service 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.91.198.0/24 2568 CTS Network Services 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.136.136.0/24 7046 UUNET Technologies, Inc. 192.136.136.0/22 568 DISO-UNRRA 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.156.164.0/24 19548 Adelphia Business Solutions 192.172.0.0/19 568 DISO-UNRRA 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:5 /10:8 /11:12 /12:46 /13:90 /14:238 /15:426 /16:7291 /17:1513 /18:2742 /19:7909 /20:7505 /21:5342 /22:8192 /23:9957 /24:64398 /25:177 /26:205 /27:103 /28:78 /29:54 /30:95 /31:1 /32:30 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 3908 637 1075 Supernet, Inc. 7843 569 756 Adelphia Corp. 702 540 872 UUNET - Commercial IP service 701 496 1777 UUNET Technologies, Inc. 690 465 517 Merit Network 7018 437 1358 AT&T 2828 370 472 XO Communications 18566 320 326 Covad Communications 6198 313 397 BellSouth Network Solutions, 1580 306 320 ANOSCEUR 6197 282 399 BellSouth Network Solutions, 7046 275 589 UUNET Technologies, Inc. 1239 271 887 Sprint 209 260 577 Qwest 3215 234 309 France Telecom Transpac 3301 228 382 TeliaNet Sweden 11492 224 229 Cable One 4355 218 385 EarthLink, Inc. 7066 205 306 Virginia Polytechnic Institut 19029 192 220 New Edge Networks Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:5 12:578 13:10 15:4 17:6 20:3 24:899 25:1 32:42 38:26 40:11 44:1 55:1 57:17 61:369 62:238 63:1905 64:1351 65:1609 66:1209 67:117 68:176 69:16 80:287 81:60 128:129 129:105 130:18 131:63 132:9 133:2 134:140 135:7 136:406 137:108 138:205 139:71 140:156 141:77 142:82 143:46 144:148 145:18 146:235 147:225 148:255 149:76 150:41 151:89 152:294 153:36 154:8 155:106 156:103 157:106 158:76 159:149 160:20 161:74 162:126 163:85 164:82 165:125 166:104 167:300 168:302 169:60 170:217 171:6 192:5425 193:2380 194:2005 195:837 196:431 198:3636 199:3100 200:2504 202:3512 203:4851 204:3280 205:2112 206:2369 207:2467 208:2551 209:2643 210:604 211:249 212:813 213:778 214:10 215:19 216:3233 217:505 218:50 219:3 End of report

1 0

The Cidr Report
by cidr-report＠potaroo.net 18 Oct '02

18 Oct '02

This report has been generated at Fri Oct 18 21:45:11 2002 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 11-10-02 114611 82522 12-10-02 114687 82431 13-10-02 114551 82294 14-10-02 114344 82657 15-10-02 114786 82675 16-10-02 114805 82681 17-10-02 114726 82664 18-10-02 114704 82837 Possible Bogus Routes 192.0.0.0/24 AS3215 AS3215 France Telecom Transpac AS Summary 13878 Number of ASes in routing system 5410 Number of ASes announcing only one prefix 1759 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73212160 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 18Oct02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 115049 82849 32200 28.0% All ASes AS7132 591 68 523 88.5% SBIS-AS Southwestern Bell Internet Services AS3908 1059 554 505 47.7% SUPERNETASBLK SuperNet, Inc. AS701 1759 1284 475 27.0% ALTERNET-AS UUNET Technologies, Inc. AS7843 756 324 432 57.1% ADELPHIA-AS Adelphia Corp. AS7018 1352 996 356 26.3% ATT-INTERNET4 AT&T WorldNet Services AS4323 518 181 337 65.1% TW-COMM Time Warner Communications, Inc. AS1221 1201 878 323 26.9% ASN-TELSTRA Telstra Pty Ltd AS18566 313 4 309 98.7% COVAD Covad Communications AS852 737 458 279 37.9% ASN852 Telus Advanced Communications AS6347 346 77 269 77.7% DIAMOND SAVVIS Communications Corporation AS4355 385 128 257 66.8% ERMS-EARTHLNK EARTHLINK, INC AS7046 578 342 236 40.8% UUNET-CUSTOMER UUNET Technologies, Inc. AS209 569 337 232 40.8% ASN-QWEST Qwest AS1239 879 661 218 24.8% SPRINTLINK Sprint AS1 651 434 217 33.3% GNTY-1 Genuity AS705 443 226 217 49.0% ASN-ALTERNET UUNET Technologies, Inc. AS4814 229 15 214 93.4% CHINANET-BEIJING-AP China Telecom (Group) AS4151 292 88 204 69.9% USDA-1 USDA AS22927 215 20 195 90.7% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS6595 249 56 193 77.5% DODDSEUR DoD Education Activity Network Assistance Center AS17676 224 34 190 84.8% GIGAINFRA APNIC ASN block AS4134 297 113 184 62.0% ERX-CHINALINK Data Communications Bureau AS17557 301 121 180 59.8% PKTELECOM-AS-AP APNIC ASN block AS6140 256 77 179 69.9% IMPSAT-USA ImpSat USA, Inc. AS2048 262 88 174 66.4% LANET-1 State of Louisiana AS6197 395 226 169 42.8% BATI-ATL BellSouth Network Solutions, Inc AS690 517 350 167 32.3% MERIT-AS-27 Merit Network Inc. AS6198 395 229 166 42.0% BATI-MIA BellSouth Network Solutions, Inc AS1791 185 21 164 88.6% SPRINTLINK3 Sprint Government Systems Division AS2548 426 266 160 37.6% ICIX-MD-AS Business Internet, Inc. Total 16380 8656 7724 47.2% Top 30 total 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)lists.apnic.net routing-wg(a)ripe.net afnog(a)afnog.org

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Weekly Routing Table Report
by Routing Table Analysis 18 Oct '02

18 Oct '02

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 For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 18 Oct, 2002 Analysis Summary ---------------- BGP routing table entries examined: 116117 Prefixes after maximum aggregation: 74648 Unique aggregates announced to Internet: 55576 Total ASes present in the Internet Routing Table: 13917 Origin-only ASes present in the Internet Routing Table: 12060 Origin ASes announcing only one prefix: 5396 Transit ASes present in the Internet Routing Table: 1857 Transit-only ASes present in the Internet Routing Table: 60 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 20 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 35 Number of addresses announced to Internet: 1176988512 Equivalent to 70 /8s, 39 /16s and 107 /24s Percentage of available address space announced: 31.8 Percentage of allocated address space announced: 58.2 Percentage of available address space allocated: 54.6 Total number of prefixes smaller than registry allocations: 48263 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18960 Total APNIC prefixes after maximum aggregation: 11438 Prefixes being announced from the APNIC address blocks: 17458 Unique aggregates announced from the APNIC address blocks: 11051 APNIC Region origin ASes present in the Internet Routing Table: 1623 APNIC Region origin ASes announcing only one prefix: 522 APNIC Region transit ASes present in the Internet Routing Table: 274 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 99347616 Equivalent to 5 /8s, 235 /16s and 236 /24s Percentage of available APNIC address space announced: 65.3 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72639 Total ARIN prefixes after maximum aggregation: 46261 Prefixes being announced from the ARIN address blocks: 51036 Unique aggregates announced from the ARIN address blocks: 15384 ARIN Region origin ASes present in the Internet Routing Table: 7831 ARIN Region origin ASes announcing only one prefix: 2585 ARIN Region transit ASes present in the Internet Routing Table: 748 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 14 Number of ARIN addresses announced to Internet: 181394040 Equivalent to 10 /8s, 207 /16s and 218 /24s Percentage of available ARIN address space announced: 67.6 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 19733 Total RIPE prefixes after maximum aggregation: 14890 Prefixes being announced from the RIPE address blocks: 16420 Unique aggregates announced from the RIPE address blocks: 10966 RIPE Region origin ASes present in the Internet Routing Table: 4088 RIPE Region origin ASes announcing only one prefix: 2210 RIPE Region transit ASes present in the Internet Routing Table: 756 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 116133696 Equivalent to 6 /8s, 236 /16s and 15 /24s Percentage of available RIPE address space announced: 76.9 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 4783 Total LACNIC prefixes after maximum aggregation: 2059 Prefixes being announced from the LACNIC address blocks: 4120 Unique aggregates announced from the LACNIC address blocks: 2640 LACNIC Region origin ASes present in the Internet Routing Table: 316 LACNIC Region origin ASes announcing only one prefix: 79 LACNIC Region transit ASes present in the Internet Routing Table: 68 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 11472896 Equivalent to 0 /8s, 175 /16s and 16 /24s Percentage of available LACNIC address space announced: 68.4 LACNIC AS Blocks 26592 - 26623 LACNIC Address Blocks 200/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1192 1185 870 Telstra Pty Ltd 703 399 368 315 UUNET 2907 350 1751 330 SINET Japan 2764 339 356 311 connect.com.au pty ltd 17557 304 22 118 Pakistan Telecom 7474 299 275 202 Optus Communications Pty Ltd 4134 297 2286 97 Data Communications Bureau 4755 282 139 75 Videsh Sanchar Nigam Ltd. Aut 4766 249 1808 157 Korea Internet Exchange for " 4814 229 79 15 China Telecom (Group) 17676 224 3506 31 XTAGE CORPORATION 9443 184 57 71 Primus Telecommunications 9583 162 32 5 Satyam Infoway Ltd., 4515 136 102 77 Star Internet Services Ltd. 9768 134 385 73 Korea Telecom 7657 129 23 86 The Internet Group Limited 4716 128 736 122 TTnet 9800 122 188 24 CHINA UNICOM 4739 117 56 108 Commerical Internet eXchange 4713 115 1049 104 NTT Communications Corporatio ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1789 9190 1275 UUNET Technologies, Inc. 7018 1348 7174 938 AT&T 3908 1073 1651 507 Supernet, Inc. 1239 882 3187 661 Sprint 7843 757 373 305 Adelphia Corp. 852 737 1145 457 Telus Advanced Communications 1 657 8042 433 GENUITY 7132 591 673 68 Southwestern Bell Internet Se 7046 580 894 299 UUNET Technologies, Inc. 209 572 2065 335 Qwest 4323 518 439 164 Time Warner Communications, I 690 517 75 324 Merit Network 705 444 135 205 UUNET Technologies, Inc. 2548 426 1117 266 Business Internet, Inc. 3549 405 725 291 Global Crossing 6197 395 601 40 BellSouth Network Solutions, 6198 395 180 195 BellSouth Network Solutions, 4355 385 306 109 EarthLink, Inc. 2914 369 2020 358 Verio, Inc. 15290 357 214 175 AT&T Canada IES RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 869 2390 725 UUNET - Commercial IP service 3301 380 1164 334 TeliaNet Sweden 3215 304 788 170 France Telecom Transpac 3320 244 1966 221 Deutsche Telekom AG 680 238 2151 234 DFN-IP service G-WiN 5515 212 783 176 Sonera Solution Autonomous Sy 1257 206 414 202 SWIPnet Swedish IP Network 5400 204 83 97 BT Ignite European Backbone 719 192 307 131 LANLINK autonomous system 786 176 1873 176 The JANET IP Service 2856 169 790 131 BTnet UK Regional network 8708 153 41 146 Romania Data Systems S.A. 3303 142 516 141 Swisscom Ltd 3246 122 373 115 Song Networks 12302 122 17 29 MobiFon S.A. 8220 113 168 104 COLT Internet - International 3233 106 10 8 RNC - Romanian Natioanal R&D 3269 106 690 64 TELECOM ITALIA 2874 103 85 39 Global One Services AB 6830 102 222 12 UPC Distribution Services LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 247 114 58 ImpSat USA, Inc. 8151 200 330 109 UniNet S.A. de C.V. 7303 178 27 49 Telecom Argentina Stet-France 11172 168 72 33 Servicios Alestra S.A de C.V 6503 154 190 108 AVANTEL, S.A. 16814 106 7 12 NSS, S.A. 13999 105 20 7 Mega Cable S.A. de C.V. 10620 99 6 30 TVCABLE BOGOTA 11340 79 2 24 Red Universitaria Nacional 15311 76 26 32 Telefonica Empresas 1916 73 409 40 Fundacao de Amparo a Pesquisa 11992 70 7 30 Integrated Systems 4270 68 18 10 Red de Interconexion Universi 15034 65 5 33 TIBA SA 4926 62 4 50 Telintar S.A. 7984 62 27 42 Global One Colombia 2277 61 16 3 ECUANET - CORPORACION ECUATOR 8065 59 6 15 Empresas Publicas de Medellin 7927 58 4 40 Global One Venezuela 6535 55 4 15 Chilesat Servicios Empresari Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 3908 1073 566 Supernet, Inc. 7132 591 523 Southwestern Bell Internet Se 7843 757 452 Adelphia Corp. 7018 1348 410 AT&T 6197 395 355 BellSouth Network Solutions, 4323 518 354 Time Warner Communications, I 1221 1192 322 Telstra Pty Ltd 18566 313 309 Covad Communications 1580 320 307 ANOSCEUR 7046 580 281 UUNET Technologies, Inc. 852 737 280 Telus Advanced Communications 4355 385 276 EarthLink, Inc. 4151 292 276 USDA 6347 347 272 SAVVIS Communications Corpora 705 444 239 UUNET Technologies, Inc. 209 572 237 Qwest 376 341 231 Reseau Interordinateurs Scien 1 657 224 GENUITY 1239 882 221 Sprint 4814 229 214 China Telecom (Group) List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65021 PRIVATE 128.216.1.0/24 619 Department of Navy 65021 PRIVATE 128.216.4.0/24 619 Department of Navy 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 GENUITY 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.236.0.0/16 568 DISO-UNRRA 192.31.242.0/24 771 NASA Ames Research Center 192.44.0.0/19 702 UUNET - Commercial IP service 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.91.198.0/24 2568 CTS Network Services 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.136.136.0/24 7046 UUNET Technologies, Inc. 192.136.136.0/22 568 DISO-UNRRA 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.156.164.0/24 19548 Adelphia Business Solutions 192.172.0.0/19 568 DISO-UNRRA 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:5 /10:7 /11:12 /12:46 /13:90 /14:241 /15:430 /16:7281 /17:1501 /18:2732 /19:7875 /20:7533 /21:5332 /22:8177 /23:10025 /24:64039 /25:178 /26:219 /27:115 /28:79 /29:54 /30:96 /31:1 /32:32 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 3908 639 1073 Supernet, Inc. 7843 569 757 Adelphia Corp. 702 536 869 UUNET - Commercial IP service 701 493 1789 UUNET Technologies, Inc. 690 465 517 Merit Network 7018 434 1348 AT&T 6198 311 395 BellSouth Network Solutions, 18566 307 313 Covad Communications 1580 306 320 ANOSCEUR 6197 279 395 BellSouth Network Solutions, 1239 267 882 Sprint 7046 266 580 UUNET Technologies, Inc. 209 254 572 Qwest 3215 229 304 France Telecom Transpac 3301 226 380 TeliaNet Sweden 11492 221 226 Cable One 4355 218 385 EarthLink, Inc. 7066 205 307 Virginia Polytechnic Institut 3320 186 244 Deutsche Telekom AG 5400 184 204 BT Ignite European Backbone Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:5 12:563 13:10 15:4 17:7 20:4 24:862 25:1 32:42 38:27 40:10 44:1 55:1 57:14 61:360 62:244 63:1899 64:1282 65:1598 66:1195 67:116 68:183 69:17 80:301 81:61 128:128 129:117 130:19 131:62 132:9 133:2 134:131 135:7 136:512 137:106 138:203 139:71 140:168 141:77 142:69 143:44 144:151 145:18 146:232 147:224 148:253 149:78 150:41 151:94 152:295 153:38 154:8 155:104 156:103 157:105 158:71 159:145 160:20 161:75 162:123 163:84 164:82 165:128 166:104 167:289 168:305 169:61 170:202 171:6 192:5382 193:2364 194:2009 195:820 196:435 198:3624 199:3077 200:2523 202:3483 203:4837 204:3293 205:2108 206:2386 207:2497 208:2574 209:2568 210:601 211:276 212:877 213:791 214:9 215:19 216:2959 217:504 218:49 219:3 End of report

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Call for Papers: PAM2003 (fwd)
by Henk Uijterwaal (RIPE-NCC) 18 Oct '02

18 Oct '02

FYI and sorry for any duplicate mails, Henk. ---------- Forwarded message ---------- Date: Thu, 17 Oct 2002 20:30:31 -0700 (PDT) From: Maureen C. Curran <mcurran(a)sdsc.edu> Reply-To: Maureen C. Curran <mcurran(a)nlanr.net> To: mcurran(a)nlanr.net Subject: Call for Papers: PAM2003 *************** Call for Papers: PAM2003 **************** PAM2003 - A workshop on Passive and Active Measurements La Jolla, California, April 6-8, 2003 Hosted by NLANR Measurement and Network Analysis Group ********************************************************* As the Internet has grown over the last decade, the need for precise measurement of the network and its traffic load have become steadily more apparent. Most of today's Internet Service Providers and many of their large network customers are collecting and analyzing measurement data for the purposes of performance monitoring, network engineering, and cost recovery, but the engineering quality of these measurements vary. A steadily growing number of research groups have been working in the areas of: * Active Measurements - sending test packets and observing their progress through the Internet, * Passive Measurements - observing actual traffic on 'live' networks, * Performance Metrics - developing measures or indicators which can be used to characterize traffic behavior, * Traffic Statistics - attempting to understand and develop models of 'real' Internet traffic, and * Visualization - finding effective ways to display what is happening in a network. PAM2003 is a three-day event focusing on research and practical applications of passive and active measurement and analysis techniques. NLANR/MNA will be hosting this fourth PAM workshop April 6-8, 2003 in La Jolla, California, USA. This follows successful workshops in Hamilton, New Zealand (2000), Amsterdam, The Netherlands (2001), and Fort Collins, Colorado USA (2002). Papers are invited from the research, provider, and other communities on topics in the areas listed above, or any other area of network traffic measurement. Student participation is strongly encouraged. To support students who wish to participate, sponsorship funding has been offered by Endace Measurement Systems to offset some costs for students to attend and present. Further details will be available soon. Areas of interest include, but are not limited to: 1. 'Experience' papers, which describe practical uses of measurements, especially in large networks. 2. Papers on modelling network traffic, in particular if they are backed up by measurements of real traffic. 3. Papers describing network research that can be applied to existing networks. Instructions for Authors Extended abstracts (between 500 words and 5 pages, plain ASCII or pdf) must be submitted by email to pampapers(a)nlanr.net by December 1, 2002. Paper submissions must contain the following: * paper title, * full name(s) of the author(s), * organizational affiliation(s) and * one email address where the author(s) can be contacted. Abstracts will be reviewed and acceptance notified no later than January 3, 2003. Papers, maximum 15 printed pages, must be submitted electronically by February 10, 2003. Details of acceptable paper formats will be published on the Instructions for Authors portion of the conference Web site. There will be an opportunity for participants to present measurement equipment and software. Proposals for demonstrations (about 500 words, plain ASCII) should be sent by email to the conference chair at pampapers(a)nlanr.net by February 4, 2003. The program committee is investigating the possibility of organizing one or more tutorial sessions in conjunction with the conference. Proposals for tutorials (up to 5 pages, plain ASCII or pdf) should be sent by email to the conference chair by December 1, 2002. Conference Venue The workshop will be held at the San Diego Supercomputer Center on the University of California, San Diego campus, La Jolla, California, USA. The conference fee will be approximately US$200. The exact conference fee and details on registration will be published on the workshop's Web page late November. The conference fee will include a printed copy of the papers selected for presentation at the workshop. Papers selected for publication will also be published on the Web. The Doubletree Del Mar Hotel will be the PAM2003 Workshop Hotel. * Special reduced room rates will be offered for PAM2003. These special reduced room rates will also be offered before and after the workshop dates (April 6-8, 2003) so attendees can easily extend their stay in San Diego. * A PAM2003 Reception will be held at The Doubletree Del Mar Hotel on the evening of Sunday April 6th. * Shuttle service will be provided between The Doubletree Del Mar Hotel and PAM2003 at UCSD. Important Dates * December 1, 2002: Deadline for abstracts; Proposals for tutorials due * January 3, 2003: Notification of acceptance * February 10, 2003: Final papers due; Proposals for demonstrations for equipment and software due * April 6-8, 2003: Conference Contact Information ATTN: R. Ritke (PAM2003) NLANR/MNA, SDSC at UC San Diego 9500 Gilman Drive La Jolla, CA 92093-0505 U.S.A. tel +1-858-822-3648 fax +1-858-534-8380 paminfo(a)nlanr.net Web page: www.pam2003.org - the Web page will be live mid-to-late next week (by October 25, 2002). Please check back often as we will be adding new information on a regular basis. (The email addresses are in effect immediately.)

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The Cidr Report
by cidr-report＠potaroo.net 11 Oct '02

11 Oct '02

This report has been generated at Fri Oct 11 21:45:36 2002 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 04-10-02 114025 82170 05-10-02 114135 82280 06-10-02 114325 82318 07-10-02 114398 82256 08-10-02 114434 82620 09-10-02 114687 82510 10-10-02 114415 82589 11-10-02 114611 82621 Possible Bogus Routes 192.0.0.0/24 AS3215 AS3215 France Telecom Transpac AS Summary 13857 Number of ASes in routing system 5394 Number of ASes announcing only one prefix 1762 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73081088 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 11Oct02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 114736 82545 32191 28.1% All ASes AS4637 703 119 584 83.1% REACH Reach Network Border AS AS7132 594 71 523 88.0% SBIS-AS Southwestern Bell Internet Services AS3908 1036 533 503 48.6% SUPERNETASBLK SuperNet, Inc. AS701 1762 1277 485 27.5% ALTERNET-AS UUNET Technologies, Inc. AS7843 721 327 394 54.6% ADELPHIA-AS Adelphia Corp. AS7018 1349 992 357 26.5% ATT-INTERNET4 AT&T WorldNet Services AS4323 519 182 337 64.9% TW-COMM Time Warner Communications, Inc. AS1221 1206 886 320 26.5% ASN-TELSTRA Telstra Pty Ltd AS18566 298 4 294 98.7% COVAD Covad Communications AS852 736 457 279 37.9% ASN852 Telus Advanced Communications AS6347 342 77 265 77.5% DIAMOND SAVVIS Communications Corporation AS4151 292 37 255 87.3% USDA-1 USDA AS6197 392 140 252 64.3% BATI-ATL BellSouth Network Solutions, Inc AS4355 370 126 244 65.9% ERMS-EARTHLNK EARTHLINK, INC AS7046 574 337 237 41.3% UUNET-CUSTOMER UUNET Technologies, Inc. AS209 573 337 236 41.2% ASN-QWEST Qwest AS1239 874 655 219 25.1% SprintLink Sprint AS1 652 437 215 33.0% GNTY-1 Genuity AS4814 225 15 210 93.3% CHINANET-BEIJING-AP China Telecom (Group)Beijing Telecom CompanyBeijing China AS705 409 201 208 50.9% ASN-ALTERNET UUNET Technologies, Inc. AS22927 215 20 195 90.7% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS6595 248 57 191 77.0% DODDSEUR DoD Education Activity Network Assistance Center AS17676 224 34 190 84.8% GIGAINFRA APNIC ASN block AS690 518 329 189 36.5% NSFNET-T3-RT-AS Merit Network Inc. AS4134 293 111 182 62.1% ERX-CHINALINK Data Communications Bureau AS17557 293 115 178 60.8% PKTELECOM-AS-AP APNIC ASN block AS6198 396 221 175 44.2% BATI-MIA BellSouth Network Solutions, Inc AS2048 262 89 173 66.0% LANET-1 State of Louisiana AS2548 438 270 168 38.4% ICIX-MD-AS Business Internet, Inc. AS174 298 133 165 55.4% PSINET PSINet Inc. Total 16812 8589 8223 48.9% Top 30 total 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)lists.apnic.net routing-wg(a)ripe.net afnog(a)afnog.org

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