- routing-wg - mailman.ripe.net

The Cidr Report
by Tony Bates 06 Aug '99

06 Aug '99

This is an auto-generated mail on Fri Aug 6 12:00:00 PDT 1999 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 06Aug99 0) General Status Table History ------------- Date Prefixes 300799 61912 310799 61846 010899 61817 020899 62029 030899 62101 040899 61977 050899 61856 060899 61906 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: 5397 Number of ASes announcing only one prefix: 2825 (1559 cidr, 1266 classful) Largest number of cidr routes: 478 announced by AS701 Largest number of classful routes: 839 announced by AS701 1) Gains by aggregating at the origin AS level --- 06Aug99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 346 150 196 56.6% BCnet Backbone AS2609 124 20 104 83.9% EUnet-TN AS1221 547 450 97 17.7% TELSTRA-AS AS577 283 191 92 32.5% Bell Canada Backbone AS174 574 482 92 16.0% Performance Systems International AS3749 153 63 90 58.8% TECNET AS7046 327 240 87 26.6% UUNET-CUSTOMER AS4293 237 151 86 36.3% IMCI AS4200 178 101 77 43.3% AGIS (Apex Global Information Ser AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS7657 230 156 74 32.2% The Internet Group Limited AS7496 107 34 73 68.2% Power Up AS10928 117 48 69 59.0% UNKNOWN AS9269 77 15 62 80.5% Hong Kong CTI AS6944 63 6 57 90.5% RapidSite, Inc. AS4755 133 77 56 42.1% Videsh Sanchar Nigam Ltd. India AS719 457 406 51 11.2% LANLINK autonomous system AS2493 157 108 49 31.2% iSTAR Internet, Inc. AS684 91 46 45 49.5% Manitoba Regional Network Backbon AS549 215 172 43 20.0% ONet Backbone AS3737 108 67 41 38.0% PenTeleData Inc. (ASN-PTD) AS209 263 226 37 14.1% Qwest Communications AS1785 253 216 37 14.6% NYSERNet Backbone AS1 503 468 35 7.0% BBNPLANET AS10724 43 9 34 79.1% UNKNOWN AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS8023 43 13 30 69.8% CASTLES AS7745 38 8 30 78.9% BIGSKY-AS AS6629 61 31 30 49.2% NOAA-AS 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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Top 100 Maintainers List
by RIPE Database Manager 04 Aug '99

04 Aug '99

2 1

The Cidr Report
by Tony Bates 02 Aug '99

02 Aug '99

This is an auto-generated mail on Fri Jul 30 12:00:00 PDT 1999 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 30Jul99 0) General Status Table History ------------- Date Prefixes 230799 61494 240799 61486 250799 61391 260799 61592 270799 61488 280799 61707 290799 61808 300799 61912 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: 5372 Number of ASes announcing only one prefix: 2813 (1550 cidr, 1263 classful) Largest number of cidr routes: 461 announced by AS701 Largest number of classful routes: 841 announced by AS701 1) Gains by aggregating at the origin AS level --- 30Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 348 147 201 57.8% BCnet Backbone AS2609 121 28 93 76.9% EUnet-TN AS174 578 486 92 15.9% Performance Systems International AS1221 537 445 92 17.1% TELSTRA-AS AS577 280 189 91 32.5% Bell Canada Backbone AS3749 153 63 90 58.8% TECNET AS4293 235 149 86 36.6% IMCI AS7046 322 237 85 26.4% UUNET-CUSTOMER AS4200 182 103 79 43.4% AGIS (Apex Global Information Ser AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS7496 108 34 74 68.5% Power Up AS7657 229 156 73 31.9% The Internet Group Limited AS10928 119 49 70 58.8% UNKNOWN AS9269 76 16 60 78.9% Hong Kong CTI AS4755 138 79 59 42.8% Videsh Sanchar Nigam Ltd. India AS6944 63 6 57 90.5% RapidSite, Inc. AS4740 307 253 54 17.6% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 458 406 52 11.4% LANLINK autonomous system AS2493 159 110 49 30.8% iSTAR Internet, Inc. AS684 91 46 45 49.5% Manitoba Regional Network Backbon AS803 78 34 44 56.4% SaskNet Backbone AS549 215 172 43 20.0% ONet Backbone AS3737 108 67 41 38.0% PenTeleData Inc. (ASN-PTD) AS1785 253 215 38 15.0% NYSERNet Backbone AS209 251 216 35 13.9% Qwest Communications AS1 495 460 35 7.1% BBNPLANET AS10724 42 8 34 81.0% UNKNOWN AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS11515 32 1 31 96.9% UNKNOWN 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 23 Jul '99

23 Jul '99

This is an auto-generated mail on Fri Jul 23 12:00:00 PDT 1999 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 23Jul99 0) General Status Table History ------------- Date Prefixes 160799 61126 170799 61270 180799 60986 190799 61251 200799 61293 210799 61468 220799 61453 230799 61494 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: 5334 Number of ASes announcing only one prefix: 2793 (1543 cidr, 1250 classful) Largest number of cidr routes: 445 announced by AS701 Largest number of classful routes: 847 announced by AS701 1) Gains by aggregating at the origin AS level --- 23Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 348 145 203 58.3% BCnet Backbone AS2609 122 28 94 77.0% EUnet-TN AS577 281 188 93 33.1% Bell Canada Backbone AS174 573 481 92 16.1% Performance Systems International AS3749 152 63 89 58.6% TECNET AS4293 235 149 86 36.6% IMCI AS7046 320 238 82 25.6% UUNET-CUSTOMER AS1221 505 429 76 15.0% TELSTRA-AS AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS7496 108 34 74 68.5% Power Up AS7657 221 150 71 32.1% The Internet Group Limited AS10928 119 49 70 58.8% UNKNOWN AS4200 167 105 62 37.1% AGIS (Apex Global Information Ser AS6944 63 6 57 90.5% RapidSite, Inc. AS4740 307 252 55 17.9% Ozemail Pty Ltd (ASN-OZEMAIL) AS4755 133 79 54 40.6% Videsh Sanchar Nigam Ltd. India AS9269 73 22 51 69.9% Hong Kong CTI AS719 458 407 51 11.1% LANLINK autonomous system AS684 89 44 45 50.6% Manitoba Regional Network Backbon AS803 78 34 44 56.4% SaskNet Backbone AS549 218 174 44 20.2% ONet Backbone AS2493 112 69 43 38.4% iSTAR Internet, Inc. AS3737 106 68 38 35.8% PenTeleData Inc. (ASN-PTD) AS1785 251 214 37 14.7% NYSERNet Backbone AS1 490 455 35 7.1% BBNPLANET AS701 847 813 34 4.0% Alternet AS10724 42 8 34 81.0% UNKNOWN AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS11515 32 1 31 96.9% UNKNOWN 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 16 Jul '99

16 Jul '99

This is an auto-generated mail on Fri Jul 16 12:00:00 PDT 1999 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 16Jul99 0) General Status Table History ------------- Date Prefixes 090799 61684 100799 60957 110799 60942 120799 61016 130799 61055 140799 61223 150799 61253 160799 61126 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: 5294 Number of ASes announcing only one prefix: 2768 (1530 cidr, 1238 classful) Largest number of cidr routes: 437 announced by AS701 Largest number of classful routes: 838 announced by AS701 1) Gains by aggregating at the origin AS level --- 16Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 348 145 203 58.3% BCnet Backbone AS4293 270 161 109 40.4% IMCI AS2609 123 25 98 79.7% EUnet-TN AS577 278 186 92 33.1% Bell Canada Backbone AS174 579 490 89 15.4% Performance Systems International AS3749 146 58 88 60.3% TECNET AS7046 323 241 82 25.4% UUNET-CUSTOMER AS4200 184 103 81 44.0% AGIS (Apex Global Information Ser AS7545 139 64 75 54.0% TPG Internet Pty Ltd AS1221 495 422 73 14.7% TELSTRA-AS AS10928 118 51 67 56.8% UNKNOWN AS9269 79 13 66 83.5% Hong Kong CTI AS7496 99 33 66 66.7% Power Up AS7657 215 151 64 29.8% The Internet Group Limited AS6944 63 6 57 90.5% RapidSite, Inc. AS4755 132 76 56 42.4% Videsh Sanchar Nigam Ltd. India AS4740 312 259 53 17.0% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 459 408 51 11.1% LANLINK autonomous system AS2493 163 112 51 31.3% iSTAR Internet, Inc. AS684 88 43 45 51.1% Manitoba Regional Network Backbon AS803 78 34 44 56.4% SaskNet Backbone AS549 220 176 44 20.0% ONet Backbone AS3737 110 69 41 37.3% PenTeleData Inc. (ASN-PTD) AS1 495 459 36 7.3% BBNPLANET AS1785 246 213 33 13.4% NYSERNet Backbone AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS11515 32 1 31 96.9% UNKNOWN AS8023 43 13 30 69.8% CASTLES AS7745 38 8 30 78.9% BIGSKY-AS 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 09 Jul '99

09 Jul '99

This is an auto-generated mail on Fri Jul 9 12:00:00 PDT 1999 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 09Jul99 0) General Status Table History ------------- Date Prefixes 020799 60891 030799 60878 040799 60943 050799 60887 060799 60932 070799 61691 080799 61806 090799 61684 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: 5250 Number of ASes announcing only one prefix: 2730 (1503 cidr, 1227 classful) Largest number of cidr routes: 432 announced by AS701 Largest number of classful routes: 831 announced by AS701 1) Gains by aggregating at the origin AS level --- 09Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS816 826 589 237 28.7% UUNET Canada (ASN-UUNETCA-AS4) AS271 348 145 203 58.3% BCnet Backbone AS4293 268 159 109 40.7% IMCI AS2609 122 27 95 77.9% EUnet-TN AS577 282 188 94 33.3% Bell Canada Backbone AS174 585 496 89 15.2% Performance Systems International AS7046 325 242 83 25.5% UUNET-CUSTOMER AS4200 186 105 81 43.5% AGIS (Apex Global Information Ser AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS3749 134 61 73 54.5% TECNET AS1221 485 413 72 14.8% TELSTRA-AS AS10928 119 50 69 58.0% UNKNOWN AS7496 100 34 66 66.0% Power Up AS7657 206 144 62 30.1% The Internet Group Limited AS9269 71 12 59 83.1% Hong Kong CTI AS72 95 39 56 58.9% Schlumberger Information Network AS4740 313 260 53 16.9% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 456 405 51 11.2% LANLINK autonomous system AS6944 58 7 51 87.9% RapidSite, Inc. AS2493 165 114 51 30.9% iSTAR Internet, Inc. AS4755 123 74 49 39.8% Videsh Sanchar Nigam Ltd. India AS803 78 34 44 56.4% SaskNet Backbone AS549 219 175 44 20.1% ONet Backbone AS3737 110 69 41 37.3% PenTeleData Inc. (ASN-PTD) AS1 490 454 36 7.3% BBNPLANET AS6172 153 120 33 21.6% HOME-NET-1 AS1785 246 213 33 13.4% NYSERNet Backbone AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS3549 135 104 31 23.0% Frontier GlobalCenter 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 02 Jul '99

02 Jul '99

This is an auto-generated mail on Fri Jul 2 12:00:00 PDT 1999 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 02Jul99 0) General Status Table History ------------- Date Prefixes 260699 60645 270699 60627 280699 60609 290699 60732 300699 60815 010799 60761 010799 60799 020799 60891 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: 5221 Number of ASes announcing only one prefix: 2716 (1491 cidr, 1225 classful) Largest number of cidr routes: 432 announced by AS701 Largest number of classful routes: 825 announced by AS701 1) Gains by aggregating at the origin AS level --- 02Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 347 144 203 58.5% BCnet Backbone AS4293 267 158 109 40.8% IMCI AS2609 122 27 95 77.9% EUnet-TN AS577 281 188 93 33.1% Bell Canada Backbone AS174 582 491 91 15.6% Performance Systems International AS7046 326 243 83 25.5% UUNET-CUSTOMER AS4200 186 105 81 43.5% AGIS (Apex Global Information Ser AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS3749 137 63 74 54.0% TECNET AS1221 487 414 73 15.0% TELSTRA-AS AS10928 119 50 69 58.0% UNKNOWN AS7496 99 34 65 65.7% Power Up AS7657 201 142 59 29.4% The Internet Group Limited AS9269 70 14 56 80.0% Hong Kong CTI AS72 95 39 56 58.9% Schlumberger Information Network AS4740 312 258 54 17.3% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 460 408 52 11.3% LANLINK autonomous system AS2493 166 115 51 30.7% iSTAR Internet, Inc. AS4755 123 74 49 39.8% Videsh Sanchar Nigam Ltd. India AS3737 159 110 49 30.8% PenTeleData Inc. (ASN-PTD) AS684 88 43 45 51.1% Manitoba Regional Network Backbon AS803 78 34 44 56.4% SaskNet Backbone AS549 221 178 43 19.5% ONet Backbone AS6944 46 5 41 89.1% RapidSite, Inc. AS1 485 449 36 7.4% BBNPLANET AS6172 155 120 35 22.6% HOME-NET-1 AS1785 246 213 33 13.4% NYSERNet Backbone AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS3549 132 101 31 23.5% Frontier GlobalCenter 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 28 Jun '99

28 Jun '99

This is an auto-generated mail on Fri Jun 25 12:00:00 PDT 1999 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 25Jun99 0) General Status Table History ------------- Date Prefixes 180699 60164 190699 60219 200699 60266 210699 60373 220699 60763 230699 60904 240699 61044 250699 61068 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: 3806 Number of ASes announcing only one prefix: 1501 (322 cidr, 1179 classful) Largest number of cidr routes: 157 announced by AS6172 Largest number of classful routes: 811 announced by AS701 1) Gains by aggregating at the origin AS level --- 25Jun99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 350 148 202 57.7% BCnet Backbone AS4293 255 150 105 41.2% IMCI AS577 280 187 93 33.2% Bell Canada Backbone AS174 582 490 92 15.8% Performance Systems International AS7046 318 240 78 24.5% UUNET-CUSTOMER AS4200 179 101 78 43.6% AGIS (Apex Global Information Ser AS3749 137 63 74 54.0% TECNET AS7545 128 62 66 51.6% TPG Internet Pty Ltd AS7496 98 32 66 67.3% Power Up AS7122 139 78 61 43.9% MTS ADVANCED Network Policy AS1221 452 392 60 13.3% TELSTRA-AS AS1239 540 481 59 10.9% SprintLink Backbone AS4755 134 76 58 43.3% Videsh Sanchar Nigam Ltd. India AS9269 66 9 57 86.4% Hong Kong CTI AS7657 184 127 57 31.0% The Internet Group Limited AS72 95 39 56 58.9% Schlumberger Information Network AS4740 317 261 56 17.7% Ozemail Pty Ltd (ASN-OZEMAIL) AS10928 99 45 54 54.5% UNKNOWN AS2493 171 118 53 31.0% iSTAR Internet, Inc. AS719 462 410 52 11.3% LANLINK autonomous system AS3737 159 110 49 30.8% PenTeleData Inc. (ASN-PTD) AS549 222 178 44 19.8% ONet Backbone AS803 73 37 36 49.3% SaskNet Backbone AS3549 154 119 35 22.7% Frontier GlobalCenter AS6944 37 3 34 91.9% RapidSite, Inc. AS6172 153 119 34 22.2% HOME-NET-1 AS1 478 444 34 7.1% BBNPLANET AS1785 246 214 32 13.0% NYSERNet Backbone AS11515 32 1 31 96.9% UNKNOWN AS10479 36 5 31 86.1% ITESM-Rectoria Zona Norte 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

2 1

The Cidr Report
by Tony Bates 18 Jun '99

18 Jun '99

This is an auto-generated mail on Fri Jun 18 12:00:00 PDT 1999 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 18Jun99 0) General Status Table History ------------- Date Prefixes 110699 59966 120699 59973 130699 59896 140699 60007 150699 60030 160699 60041 170699 60131 180699 60164 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: 3790 Number of ASes announcing only one prefix: 1523 (344 cidr, 1179 classful) Largest number of cidr routes: 79 announced by AS2652 Largest number of classful routes: 811 announced by AS701 1) Gains by aggregating at the origin AS level --- 18Jun99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 350 148 202 57.7% BCnet Backbone AS4293 255 150 105 41.2% IMCI AS577 280 187 93 33.2% Bell Canada Backbone AS174 582 490 92 15.8% Performance Systems International AS7046 318 240 78 24.5% UUNET-CUSTOMER AS4200 179 101 78 43.6% AGIS (Apex Global Information Ser AS3749 137 63 74 54.0% TECNET AS7545 128 62 66 51.6% TPG Internet Pty Ltd AS7496 98 32 66 67.3% Power Up AS7122 139 78 61 43.9% MTS ADVANCED Network Policy AS1221 452 392 60 13.3% TELSTRA-AS AS1239 540 481 59 10.9% SprintLink Backbone AS4755 134 76 58 43.3% Videsh Sanchar Nigam Ltd. India AS9269 66 9 57 86.4% Hong Kong CTI AS7657 184 127 57 31.0% The Internet Group Limited AS72 95 39 56 58.9% Schlumberger Information Network AS4740 317 261 56 17.7% Ozemail Pty Ltd (ASN-OZEMAIL) AS10928 99 45 54 54.5% UNKNOWN AS2493 171 118 53 31.0% iSTAR Internet, Inc. AS719 462 410 52 11.3% LANLINK autonomous system AS3737 159 110 49 30.8% PenTeleData Inc. (ASN-PTD) AS549 222 178 44 19.8% ONet Backbone AS803 73 37 36 49.3% SaskNet Backbone AS3549 154 119 35 22.7% Frontier GlobalCenter AS6944 37 3 34 91.9% RapidSite, Inc. AS6172 153 119 34 22.2% HOME-NET-1 AS1 478 444 34 7.1% BBNPLANET AS1785 246 214 32 13.0% NYSERNet Backbone AS11515 32 1 31 96.9% UNKNOWN AS10479 36 5 31 86.1% ITESM-Rectoria Zona Norte 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 11 Jun '99

11 Jun '99

This is an auto-generated mail on Fri Jun 11 12:00:00 PDT 1999 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 11Jun99 0) General Status Table History ------------- Date Prefixes 040699 60877 050699 60904 060699 60755 070699 63430 080699 63562 090699 59692 100699 59760 110699 59966 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: 5088 Number of ASes announcing only one prefix: 2604 (1420 cidr, 1184 classful) Largest number of cidr routes: 418 announced by AS701 Largest number of classful routes: 827 announced by AS701 1) Gains by aggregating at the origin AS level --- 11Jun99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 347 145 202 58.2% BCnet Backbone AS4293 262 155 107 40.8% IMCI AS577 280 187 93 33.2% Bell Canada Backbone AS174 583 491 92 15.8% Performance Systems International AS7046 320 242 78 24.4% UUNET-CUSTOMER AS4200 177 100 77 43.5% AGIS (Apex Global Information Ser AS3749 135 62 73 54.1% TECNET AS7496 99 33 66 66.7% Power Up AS10928 115 51 64 55.7% UNKNOWN AS7122 139 78 61 43.9% MTS ADVANCED Network Policy AS1221 452 392 60 13.3% TELSTRA-AS AS1239 540 481 59 10.9% SprintLink Backbone AS4755 134 76 58 43.3% Videsh Sanchar Nigam Ltd. India AS9269 66 9 57 86.4% Hong Kong CTI AS7657 187 130 57 30.5% The Internet Group Limited AS72 95 39 56 58.9% Schlumberger Information Network AS4740 317 261 56 17.7% Ozemail Pty Ltd (ASN-OZEMAIL) AS7545 123 71 52 42.3% TPG Internet Pty Ltd AS719 462 410 52 11.3% LANLINK autonomous system AS2493 171 119 52 30.4% iSTAR Internet, Inc. AS3737 159 110 49 30.8% PenTeleData Inc. (ASN-PTD) AS549 222 178 44 19.8% ONet Backbone AS803 73 37 36 49.3% SaskNet Backbone AS3549 152 117 35 23.0% Frontier GlobalCenter AS1 483 448 35 7.2% BBNPLANET AS6172 154 120 34 22.1% HOME-NET-1 AS6944 34 2 32 94.1% RapidSite, Inc. AS1785 246 214 32 13.0% NYSERNet Backbone AS11515 32 1 31 96.9% UNKNOWN AS10479 36 5 31 86.1% ITESM-Rectoria Zona Norte 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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