June 1999 - routing-wg - mailman.ripe.net

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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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

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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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The Cidr Report
by Tony Bates 04 Jun '99

04 Jun '99

This is an auto-generated mail on Fri Jun 4 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 04Jun99 0) General Status Table History ------------- Date Prefixes 280599 60794 290599 60486 300599 60423 310599 60546 010699 60651 020699 60740 030699 61574 040699 60877 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: 5052 Number of ASes announcing only one prefix: 2600 (1423 cidr, 1177 classful) Largest number of cidr routes: 400 announced by AS701 Largest number of classful routes: 1230 announced by AS209 1) Gains by aggregating at the origin AS level --- 04Jun99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS209 1230 577 653 53.1% Qwest Communications AS271 349 144 205 58.7% BCnet Backbone AS4293 256 151 105 41.0% IMCI AS577 276 183 93 33.7% Bell Canada Backbone AS174 582 491 91 15.6% Performance Systems International AS4200 175 99 76 43.4% AGIS (Apex Global Information Ser AS3749 137 63 74 54.0% TECNET AS7046 304 231 73 24.0% UUNET-CUSTOMER AS1267 94 24 70 74.5% IUNET-AS AS7496 99 33 66 66.7% Power Up AS10928 118 52 66 55.9% UNKNOWN AS7545 115 50 65 56.5% TPG Internet Pty Ltd AS7122 139 78 61 43.9% MTS ADVANCED Network Policy AS1221 452 392 60 13.3% TELSTRA-AS AS4755 139 80 59 42.4% Videsh Sanchar Nigam Ltd. India AS1239 543 484 59 10.9% SprintLink Backbone AS9269 68 10 58 85.3% Hong Kong CTI AS7657 181 124 57 31.5% The Internet Group Limited AS72 95 39 56 58.9% Schlumberger Information Network AS4740 323 267 56 17.3% Ozemail Pty Ltd (ASN-OZEMAIL) AS2493 174 121 53 30.5% iSTAR Internet, Inc. AS719 465 413 52 11.2% LANLINK autonomous system AS3737 161 111 50 31.1% PenTeleData Inc. (ASN-PTD) AS803 73 37 36 49.3% SaskNet Backbone AS1 490 455 35 7.1% BBNPLANET AS6944 34 2 32 94.1% RapidSite, Inc. AS6172 154 122 32 20.8% HOME-NET-1 AS1785 246 214 32 13.0% NYSERNet Backbone AS549 164 133 31 18.9% ONet Backbone AS4307 32 1 31 96.9% SVINET-1 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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