October 2000 - routing-wg - mailman.ripe.net

The Cidr Report
by Tony Bates 27 Oct '00

27 Oct '00

This is an auto-generated mail on Fri Oct 27 12:00:00 PDT 2000 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 27Oct00 0) General Status Table History ------------- Date Prefixes 201000 89411 211000 89037 221000 89088 231000 89255 241000 89314 251000 89441 261000 89651 271000 89717 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 8876 Number of ASes announcing only one prefix: 5070 (2831 cidr, 2239 classful) Largest number of cidr routes: 923 announced by AS701 Largest number of classful routes: 1138 announced by AS701 1) Gains by aggregating at the origin AS level --- 27Oct00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 421 148 273 64.8% BCnet Backbone AS1221 590 439 151 25.6% TELSTRA-AS AS9269 180 47 133 73.9% Hong Kong CTI AS816 549 421 128 23.3% UUNET Canada (ASN-UUNETCA-AS4) AS2609 128 8 120 93.8% EUnet-TN AS6429 226 112 114 50.4% FirstCom Internet AS9304 130 17 113 86.9% Hutchcity AS8013 464 360 104 22.4% PSINET-CA AS7545 159 55 104 65.4% TPG Internet Pty Ltd AS4755 200 102 98 49.0% Videsh Sanchar Nigam Ltd. India AS705 356 259 97 27.2% ALTERNET-AS AS7657 312 217 95 30.4% The Internet Group Limited AS7046 347 255 92 26.5% UUNET-CUSTOMER AS7496 128 37 91 71.1% Power Up AS174 542 456 86 15.9% Performance Systems International AS701 1138 1055 83 7.3% Alternet AS4293 340 258 82 24.1% Internal ASN for C&W AS13999 91 9 82 90.1% UNKNOWN AS6595 138 57 81 58.7% DODDSEUR AS3908 251 172 79 31.5% Supernet, Inc. AS577 247 176 71 28.7% Bell Backbone AS724 218 151 67 30.7% DLA-ASNBLOCK-AS AS7018 582 516 66 11.3% AT&T WorldNet Service Backbone AS5106 100 37 63 63.0% AADS-COLUMBUS AS226 169 107 62 36.7% USC/Information Sciences Institut AS3749 118 57 61 51.7% TECNET AS1727 149 88 61 40.9% MRMS-WEST AS16758 63 6 57 90.5% UNKNOWN AS376 131 75 56 42.7% RISQ AS8151 180 126 54 30.0% UNINET-MX For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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RIPE NCC Region Weekly Routing Report
by Routing Analysis 26 Oct '00

26 Oct '00

This is an automated weekly mailing sent to the RIPE Routing WG e-mail list describing the state of the Internet Routing Table in Europe, Middle East and North Africa. 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>. Europe, Middle East, North Africa Report 27 Oct, 2000 Analysis Summary ---------------- BGP routing table entries examined: 89649 Origin ASes present in the Internet Routing Table: 8834 Origin ASes announcing only one prefix: 2990 Transit ASes present in the Internet Routing Table: 1244 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 0 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 1 Number of addresses announced to Internet: 1184446165 Equivalent to 70 /8s, 153 /16s and 54 /24s Percentage of available address space announced: 32.0 Percentage of allocated address space announced: 62.7 Percentage of available address space allocated: 51.0 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 13996 Prefixes being announced from the RIPE address blocks: 10930 RIPE Region origin ASes present in the Internet Routing Table: 2369 RIPE Region origin ASes announcing only one prefix: 1144 RIPE Region transit ASes present in the Internet Routing Table: 457 Average RIPE Region AS path length visible: 6.4 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 80361131 Equivalent to 4 /8s, 202 /16s and 54 /24s Percentage of available RIPE address space announced: 68.4 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 RIPE Address Blocks 62/8, 193/8, 194/7, 212/7 and 217/8 RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 3301 397 299 TeliaNet Sweden 1257 339 264 Swipnet AB 702 279 419 UUNET Technologies, Inc. 1270 253 415 UUNET Germany 1849 202 309 PIPEX 719 195 154 LANLINK 786 180 959 JANET IP Service 5515 179 358 Sonera Finland 1275 151 721 DFN IP Service 3320 148 306 Deutsche Telekom AG 517 141 169 Xlink 3215 141 169 RAIN 2609 127 4 EUnet-TN 2856 124 375 BTnet UK Regional network 3303 121 261 Swisscom 5583 101 6 Global One NL 1901 100 76 EUnet Austria 1267 92 955 IUnet S.p.A 2830 86 29 UUNET UK (formerly PIPEX) Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2066 3354 UUNET Technologies, Inc. 1 889 4537 BBN Planet 7018 879 3014 AT&T 1221 739 989 Telstra 7046 702 508 UUNET Technologies, Inc. 2914 696 1333 Verio, Inc. 1239 688 1635 Sprint ICM-Inria 705 650 37 UUNET Technologies, Inc. 816 634 143 UUNET Canada4 174 602 2717 PSINet Inc. 3561 569 1390 Cable & Wireless USA 8013 500 63 PSINet Ltd. Canada 209 496 560 Qwest 3549 479 418 Frontier GlobalCenter 271 458 300 BCnet Backbone 3908 448 290 Supernet, Inc. 4293 432 55 Cable & Wireless USA 2548 425 528 Digital Express Group, Inc. 3602 425 81 Sprint Canada Advertised IANA Reserved Addresses ---------------------------------- Network Origin AS Description 50.50.50.0/30 6713 Itissalat Al-MAGHRIB Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:22 /9:4 /10:5 /11:9 /12:31 /13:56 /14:174 /15:289 /16:6683 /17:949 /18:1903 /19:6015 /20:3908 /21:3881 /22:5780 /23:7519 /24:52008 /25:93 /26:133 /27:42 /28:22 /29:62 /30:24 /31:0 /32:37 End of report

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Multihoming without AS
by Matthew Robinson 26 Oct '00

26 Oct '00

As promised. http://uk.geocities.com/maff2k/multi.doc Apologies for the microsoft format! I'm putting the html bit together at the moment. Please note this is 'work in progress' there is a better than slim chance that I've missed something fundamental which would mean that this won't work. Constructive critisism only please! Kind regards Matthew

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The Cidr Report
by Tony Bates 20 Oct '00

20 Oct '00

This is an auto-generated mail on Fri Oct 20 12:00:00 PDT 2000 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 20Oct00 0) General Status Table History ------------- Date Prefixes 131000 88713 141000 88736 151000 88773 161000 88779 171000 88976 181000 89084 191000 89049 201000 89411 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 8803 Number of ASes announcing only one prefix: 5049 (2823 cidr, 2226 classful) Largest number of cidr routes: 930 announced by AS701 Largest number of classful routes: 1133 announced by AS701 1) Gains by aggregating at the origin AS level --- 20Oct00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 431 152 279 64.7% BCnet Backbone AS1221 590 439 151 25.6% TELSTRA-AS AS816 595 454 141 23.7% UUNET Canada (ASN-UUNETCA-AS4) AS9269 177 46 131 74.0% Hong Kong CTI AS2609 128 8 120 93.8% EUnet-TN AS9304 130 17 113 86.9% Hutchcity AS6429 222 112 110 49.5% FirstCom Internet AS7545 159 55 104 65.4% TPG Internet Pty Ltd AS8013 467 364 103 22.1% PSINET-CA AS7046 355 254 101 28.5% UUNET-CUSTOMER AS4755 200 101 99 49.5% Videsh Sanchar Nigam Ltd. India AS705 356 259 97 27.2% ALTERNET-AS AS7657 313 220 93 29.7% The Internet Group Limited AS7496 126 35 91 72.2% Power Up AS174 539 453 86 16.0% Performance Systems International AS4293 341 259 82 24.0% Internal ASN for C&W AS13999 91 9 82 90.1% UNKNOWN AS701 1133 1052 81 7.1% Alternet AS6595 137 56 81 59.1% DODDSEUR AS3908 251 172 79 31.5% Supernet, Inc. AS577 249 176 73 29.3% Bell Backbone AS724 220 153 67 30.5% DLA-ASNBLOCK-AS AS7018 574 508 66 11.5% AT&T WorldNet Service Backbone AS5106 100 37 63 63.0% AADS-COLUMBUS AS226 168 106 62 36.9% USC/Information Sciences Institut AS3749 121 61 60 49.6% TECNET AS16758 63 6 57 90.5% UNKNOWN AS8151 181 126 55 30.4% UNINET-MX AS8895 97 43 54 55.7% Saudi Arabia AS AS7568 78 24 54 69.2% C.S. Communications Co., Ltd. For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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RIPE NCC Region Weekly Routing Report
by Routing Analysis 19 Oct '00

19 Oct '00

This is an automated weekly mailing sent to the RIPE Routing WG e-mail list describing the state of the Internet Routing Table in Europe, Middle East and North Africa. 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>. Europe, Middle East, North Africa Report 20 Oct, 2000 Analysis Summary ---------------- BGP routing table entries examined: 92123 Origin ASes present in the Internet Routing Table: 8838 Origin ASes announcing only one prefix: 2987 Transit ASes present in the Internet Routing Table: 1204 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 14 Illegal AS announcements present in the Routing Table: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 3 Number of addresses announced to Internet: 1186197556 Equivalent to 70 /8s, 179 /16s and 240 /24s Percentage of available address space announced: 32.0 Percentage of allocated address space announced: 62.8 Percentage of available address space allocated: 51.0 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 14183 Prefixes being announced from the RIPE address blocks: 11112 RIPE Region origin ASes present in the Internet Routing Table: 2398 RIPE Region origin ASes announcing only one prefix: 1154 RIPE Region transit ASes present in the Internet Routing Table: 439 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 14 Number of RIPE addresses announced to Internet: 79825490 Equivalent to 4 /8s, 194 /16s and 10 /24s Percentage of available RIPE address space announced: 68.0 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 RIPE Address Blocks 62/8, 193/8, 194/7, 212/7 and 217/8 RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 3301 396 299 TeliaNet Sweden 1257 339 264 Swipnet AB 702 271 403 UUNET Technologies, Inc. 1270 250 415 UUNET Germany 1849 205 326 PIPEX 719 194 154 LANLINK 786 180 959 JANET IP Service 5515 179 358 Sonera Finland 1275 157 753 DFN IP Service 3215 156 162 RAIN 3320 148 306 Deutsche Telekom AG 517 146 179 Xlink 8895 146 42 Saudi Arabia AS 2609 128 4 EUnet-TN 2856 125 375 BTnet UK Regional network 3303 121 261 Swisscom 1901 100 76 EUnet Austria 1267 91 954 IUnet S.p.A 9057 91 41 Level 3 public IP n Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2041 3358 UUNET Technologies, Inc. 7018 1228 3041 AT&T 1 996 4550 BBN Planet 1221 872 998 Telstra 2914 699 1334 Verio, Inc. 1239 697 1628 Sprint ICM-Inria 7046 679 498 UUNET Technologies, Inc. 816 677 145 UUNET Canada4 9768 655 17 Korea Telecom 174 622 2989 PSINet Inc. 3561 578 1407 Cable & Wireless USA 705 560 34 UUNET Technologies, Inc. 209 488 552 Qwest 8013 478 63 PSINet Ltd. Canada 3549 476 417 Frontier GlobalCenter 271 469 380 BCnet Backbone 2764 462 129 connect.com.au pty ltd 3908 441 289 Supernet, Inc. 4293 435 55 Cable & Wireless USA List of Illegal AS's (Global) ----------------------------- Bad AS Designation Network Transit AS Description 64602 PRIVATE 63.236.57.0/24 209 Qwest 64605 PRIVATE 208.47.206.0/24 209 Qwest Advertised IANA Reserved Addresses ---------------------------------- Network Origin AS Description 27.0.0.0/16 1221 Telstra 50.50.50.0/30 6713 Itissalat Al-MAGHRIB 110.0.253.88/30 9768 Korea Telecom Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:22 /9:4 /10:5 /11:9 /12:29 /13:61 /14:175 /15:290 /16:6694 /17:942 /18:1906 /19:5995 /20:3871 /21:3880 /22:5903 /23:7858 /24:52955 /25:363 /26:549 /27:212 /28:111 /29:101 /30:96 /31:0 /32:92 End of report

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Re: Multihoming without AS
by Matthew Robinson 19 Oct '00

19 Oct '00

Thank you for your feedback. In answer to the 'working together' providers it is not nescessary for them to be working together as you could simply buy co-location. All provider B does is advertise a /19 of address space and route it to provider A's router. Provider A's router could be on the end of a leased line in neutral co-location facilities. We tried to steer away from NAT and policy routing as it makes things complicated. We liked the 'real' address space and many of our customers would demand this. Kind regards Matthew ----- Original Message ----- From: "Corneliu Tanasa" <ctanasa(a)i-net.ro> To: "Matthew Robinson" <matthew(a)crescent.org.uk> Cc: <routing-wg(a)ripe.net> Sent: Thursday, October 19, 2000 2:10 PM Subject: Re: Multihoming without AS > Hi Matthew, > > I have a working scenario, which is slightly different than yours by the fact > that the customer have a /28 (or /27) from each A and B providers. The customer > is running NAT and also is balancing the traffic on both links (policy routing) > with floating default route to assure full backup of the links. Having chunks > of /24 allocated to each customer, then there is no issue with the bunch of /24 > announced, because each provider (ISP) will continue to advertise his /19 or > whatever. Also, in your scenario, there is the assumption that provider A and B > are not competitors and they'll work together on behalf of the community :-) > Kind regards, > Corneliu Tanasa >

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PAM2001 Call For Papers (fwd)
by Henk Uijterwaal (RIPE-NCC) 17 Oct '00

17 Oct '00

Passive & Active Measurement: PAM-2001 Second call for papers A workshop on passive and active measurement techniques for high speed computer networks and the Internet Amsterdam, the Netherlands, April 23-24, 2001 Program Committee: Henk Uijterwaal RIPE-NCC, NL, Conference Chair Nevil Brownlee U.Auckland, NZ Randy Bush Verio, USA kc Claffy CAIDA, USA Les Cottrell SLAC, USA Geoff Huston Telstra, AU Daniel Karrenberg RIPE-NCC, NL Ian Graham U.Waikato, NZ Yasuichi Kitamura APAN, Japan Will Leland Telcordia, USA Tony McGregor U.Waikato, NZ Ronn Ritke NLANR, USA Rick Whitner Agilent, USA As the Internet has grown over the last decade the need for precise measurement of network traffic has become steadily more apparent; most of today's Internet Service Providers and many of their large network customers are collecting and analysing traffic 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, i.e. sending test packets and observing their progress through the Internet, - Passive Measurements, i.e. observing actual traffic on 'live' networks, - Performance Metrics, i.e. developing measures or indicators which can be used to characterise traffic behavior, - Traffic Statistics, i.e. attempting to understand and develop models of 'real' Internet traffic, and - Visualisation, i.e. finding effective ways to display what's happening in a network. After the successful workshop PAM2000 in Hamilton, New Zealand, in April 2000, the RIPE NCC will be organising another workshop on this topic in Amsterdam in April 2001. Papers are invited from the research, provider and any other communities on topics in the areas above, or any other area of network traffic measurement. 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. Extended abstracts (about 500 words, plain ASCII preferred) must be submitted by e-mail to pam2001(a)ripe.net by 12 November 2000. Paper submissions must contain the following: paper title, full name(s) of the author(s), organisational affiliation(s) and 1 email address where the author(s) can be contacted. Abstracts will be reviewed and acceptance notified no later than 18 December 2001. Papers, maximum 15 printed pages, must be submitted electronically by 5 March 2001. Details of acceptable paper formats will be published on the conference web site, http://www.ripe.net/pam2001 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 pam2001(a)ripe.net by 5 March 2001. The program committee is investigating the possibility of organising one or more tutorial sessions in conjunction with the conference. Proposals for tutorials (about 500 words, plain ASCII) should be sent by email to the conference chair by 12 November 2000. The workshop will be held at the Barbizon Golden Tulip hotel in Amsterdam. Special room rates will be available for the conference. The conference fee will be (approximately) 175 Euro (US$165). 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. Important dates: * 12 November 2000: Deadline for abstracts * 18 December 2000: Notification of acceptance * 5 March 2001: Final papers due * 23-24 April 2001: Conference Contact information: * PAM 2001 c/o RIPE-NCC Singel 258 1016 AB Amsterdam The Netherlands * Phone: +31.20.5354444 * Fax: +31.20.5354445 * Email: pam2001(a)ripe.net * Webpage: http://www.ripe.net/pam2001 ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal(a)ripe.net RIPE Network Coordination Centre WWW: http://www.ripe.net/home/henk Singel 258 Phone: +31.20.535-4414, Fax -4445 1016 AB Amsterdam Home: +31.20.4195305 The Netherlands Mobile: +31.6.55861746 ------------------------------------------------------------------------------ A man can take a train and never reach his destination. (Kerouac, well before RFC2780).

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RIPE NCC Region Weekly Routing Report
by Routing Analysis 15 Oct '00

15 Oct '00

This is an automated weekly mailing sent to the RIPE Routing WG e-mail list describing the state of the Internet Routing Table in Europe, Middle East and North Africa. 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>. Europe, Middle East, North Africa Report 13 Oct, 2000 Analysis Summary ---------------- BGP routing table entries examined: 90952 Origin ASes present in the Internet Routing Table: 8767 Origin ASes announcing only one prefix: 2970 Transit ASes present in the Internet Routing Table: 1189 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 14 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: 1 Number of addresses announced to Internet: 1185086224 Equivalent to 70 /8s, 162 /16s and 251 /24s Percentage of available address space announced: 32.0 Percentage of allocated address space announced: 62.7 Percentage of available address space allocated: 51.0 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 14040 Prefixes being announced from the RIPE address blocks: 10985 RIPE Region origin ASes present in the Internet Routing Table: 2375 RIPE Region origin ASes announcing only one prefix: 1143 RIPE Region transit ASes present in the Internet Routing Table: 438 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 13 Number of RIPE addresses announced to Internet: 95933931 Equivalent to 5 /8s, 183 /16s and 213 /24s Percentage of available RIPE address space announced: 81.7 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 RIPE Address Blocks 62/8, 193/8, 194/7, 212/7 and 217/8 RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 3301 398 300 TeliaNet Sweden 1257 339 264 Swipnet AB 702 269 395 UUNET Technologies, Inc. 1270 245 414 UUNET Germany 1849 204 326 PIPEX 719 191 154 LANLINK 786 182 959 JANET IP Service 5515 179 358 Sonera Finland 1275 166 801 DFN IP Service 3215 153 161 RAIN 517 148 181 Xlink 3320 139 314 Deutsche Telekom AG 2609 127 4 EUnet-TN 2856 127 376 BTnet UK Regional network 8895 126 29 Saudi Arabia AS 3303 122 262 Swisscom 1901 100 76 EUnet Austria 1267 91 954 IUnet S.p.A 9057 90 40 Level 3 public IP n Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2007 3341 UUNET Technologies, Inc. 7018 1233 3041 AT&T 1 987 4549 BBN Planet 1221 903 999 Telstra 2914 700 1332 Verio, Inc. 1239 686 1675 Sprint ICM-Inria 7046 684 498 UUNET Technologies, Inc. 816 622 143 UUNET Canada4 174 621 2997 PSINet Inc. 3561 603 1448 Cable & Wireless USA 705 552 34 UUNET Technologies, Inc. 8013 513 65 PSINet Ltd. Canada 3549 504 413 Frontier GlobalCenter 209 481 560 Qwest 271 469 380 BCnet Backbone 2764 458 129 connect.com.au pty ltd 3908 443 289 Supernet, Inc. 4293 437 71 Cable & Wireless USA 3602 428 82 Sprint Canada List of Illegal AS's (Global) ----------------------------- Bad AS Designation Network Transit AS Description 65005 PRIVATE 63.101.102.0/24 7407 MCI Telecom. State G 64602 PRIVATE 63.236.57.0/24 209 Qwest 64605 PRIVATE 208.47.206.0/24 209 Qwest Advertised IANA Reserved Addresses ---------------------------------- Network Origin AS Description 27.0.0.0/16 1221 Telstra Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:22 /9:4 /10:5 /11:9 /12:29 /13:62 /14:175 /15:287 /16:6692 /17:933 /18:1894 /19:5975 /20:3814 /21:3860 /22:5882 /23:7838 /24:52534 /25:181 /26:333 /27:82 /28:73 /29:89 /30:87 /31:0 /32:92 End of report

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The Cidr Report
by Tony Bates 13 Oct '00

13 Oct '00

This is an auto-generated mail on Fri Oct 13 12:00:01 PDT 2000 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 13Oct00 0) General Status Table History ------------- Date Prefixes 061000 88980 071000 89153 081000 89078 091000 89463 101000 88806 111000 88726 121000 88590 131000 88713 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 8744 Number of ASes announcing only one prefix: 5030 (2804 cidr, 2226 classful) Largest number of cidr routes: 919 announced by AS701 Largest number of classful routes: 1123 announced by AS701 1) Gains by aggregating at the origin AS level --- 13Oct00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 431 153 278 64.5% BCnet Backbone AS1221 611 443 168 27.5% TELSTRA-AS AS9269 178 45 133 74.7% Hong Kong CTI AS816 535 406 129 24.1% UUNET Canada (ASN-UUNETCA-AS4) AS2609 128 8 120 93.8% EUnet-TN AS9304 125 15 110 88.0% Hutchcity AS6429 222 112 110 49.5% FirstCom Internet AS4755 221 112 109 49.3% Videsh Sanchar Nigam Ltd. India AS7545 158 54 104 65.8% TPG Internet Pty Ltd AS705 363 262 101 27.8% ALTERNET-AS AS7046 345 252 93 27.0% UUNET-CUSTOMER AS7496 124 33 91 73.4% Power Up AS7657 308 221 87 28.2% The Internet Group Limited AS174 541 455 86 15.9% Performance Systems International AS4293 342 260 82 24.0% Internal ASN for C&W AS13999 91 9 82 90.1% UNKNOWN AS8013 441 360 81 18.4% PSINET-CA AS6595 137 56 81 59.1% DODDSEUR AS3908 254 175 79 31.1% Supernet, Inc. AS701 1123 1045 78 6.9% Alternet AS577 248 175 73 29.4% Bell Backbone AS724 222 155 67 30.2% DLA-ASNBLOCK-AS AS7018 574 508 66 11.5% AT&T WorldNet Service Backbone AS1727 150 85 65 43.3% MRMS-WEST AS5106 100 37 63 63.0% AADS-COLUMBUS AS3749 122 60 62 50.8% TECNET AS226 168 106 62 36.9% USC/Information Sciences Institut AS16758 63 6 57 90.5% UNKNOWN AS376 129 74 55 42.6% RISQ AS8151 179 125 54 30.2% UNINET-MX For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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The Cidr Report
by Tony Bates 06 Oct '00

06 Oct '00

This is an auto-generated mail on Fri Oct 6 12:00:00 PDT 2000 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 06Oct00 0) General Status Table History ------------- Date Prefixes 290900 88909 300900 88195 011000 88325 021000 88317 031000 88456 041000 88428 051000 88525 061000 88980 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 8668 Number of ASes announcing only one prefix: 4969 (2769 cidr, 2200 classful) Largest number of cidr routes: 907 announced by AS701 Largest number of classful routes: 1086 announced by AS701 1) Gains by aggregating at the origin AS level --- 06Oct00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 431 153 278 64.5% BCnet Backbone AS1785 592 379 213 36.0% AppliedTheory Communications AS1221 621 454 167 26.9% TELSTRA-AS AS816 579 434 145 25.0% UUNET Canada (ASN-UUNETCA-AS4) AS9269 177 47 130 73.4% Hong Kong CTI AS7046 405 283 122 30.1% COQUI-NET PRTC Internet AS2609 128 8 120 93.8% EUnet-TN AS9304 125 15 110 88.0% Hutchcity AS4755 224 116 108 48.2% Videsh Sanchar Nigam Ltd. India AS7657 324 220 104 32.1% The Internet Group Limited AS7545 159 55 104 65.4% TPG Internet Pty Ltd AS705 363 263 100 27.5% ALTERNET-AS AS9706 103 9 94 91.3% Pusan Metropolitan City Office of AS6429 210 116 94 44.8% FirstCom Internet AS7496 126 35 91 72.2% Power Up AS8013 492 406 86 17.5% PSINET-CA AS174 539 453 86 16.0% Performance Systems International AS4293 340 257 83 24.4% Internal ASN for C&W AS13999 91 9 82 90.1% UNKNOWN AS6595 138 57 81 58.7% DODDSEUR AS3908 256 177 79 30.9% Supernet, Inc. AS577 248 175 73 29.4% Bell Backbone AS8895 107 37 70 65.4% Saudi Arabia AS AS724 223 156 67 30.0% DLA-ASNBLOCK-AS AS7018 579 512 67 11.6% AT&T WorldNet Service Backbone AS701 1086 1021 65 6.0% Alternet AS5106 99 36 63 63.6% AADS-COLUMBUS AS1727 139 76 63 45.3% MRMS-WEST AS3749 119 57 62 52.1% TECNET AS226 170 108 62 36.5% USC/Information Sciences Institut For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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