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

The Cidr Report
by Tony Bates 26 Feb '99

26 Feb '99

This is an auto-generated mail on Fri Feb 26 12:00:00 PST 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 26Feb99 0) General Status Table History ------------- Date Prefixes 190299 56528 200299 56373 210299 56116 220299 56354 230299 56456 240299 56506 250299 56299 260299 56598 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: 4611 Number of ASes announcing only one prefix: 2304 (1234 cidr, 1070 classful) Largest number of cidr routes: 357 announced by AS701 Largest number of classful routes: 867 announced by AS701 1) Gains by aggregating at the origin AS level --- 26Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 355 144 211 59.4% BCnet Backbone AS2493 270 153 117 43.3% iSTAR Internet, Inc. AS174 641 529 112 17.5% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS4755 158 78 80 50.6% Videsh Sanchar Nigam Ltd. India AS1267 107 29 78 72.9% IUNET-AS AS3749 140 63 77 55.0% TECNET AS4293 218 144 74 33.9% IMCI AS7545 112 48 64 57.1% TPG Internet Pty Ltd AS4200 165 101 64 38.8% AGIS (Apex Global Information Ser AS1221 423 360 63 14.9% AARNET-AS AS4740 385 324 61 15.8% Ozemail Pty Ltd (ASN-OZEMAIL) AS7046 258 200 58 22.5% UUNET-CUSTOMER AS1239 529 471 58 11.0% SprintLink Backbone AS72 89 37 52 58.4% Schlumberger Information Network AS10928 102 50 52 51.0% UNKNOWN AS577 222 172 50 22.5% Bell Canada Backbone AS7657 142 93 49 34.5% The Internet Group Limited AS7496 78 29 49 62.8% Power Up AS719 460 414 46 10.0% LANLINK autonomous system AS803 78 34 44 56.4% SaskNet Backbone AS852 177 137 40 22.6% AGT Advance Communication AS701 867 828 39 4.5% Alternet AS5674 64 27 37 57.8% PBI-NET-BLK AS7745 39 4 35 89.7% BIGSKY-AS AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS1785 249 217 32 12.9% NYSERNet Backbone AS1 505 473 32 6.3% BBNPLANET AS6332 94 63 31 33.0% TELNOR AS549 163 132 31 19.0% ONet Backbone 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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Re: The Cidr Report
by Terence 22 Feb '99

22 Feb '99

> This is an auto-generated mail on Fri Feb 19 12:00:00 PST 1999 > CIDR REPORT for 19Feb99 Tony, is the code for this report available? I'd like to run it across the ausbone and australian tables to finger some routespace hogs... TERRY | Terence C. Giufre-Sweetser | 24x7 LINKS : AusBONE | | TereDonn Computer Engineering | ISDN/DDS/PAPL/HDSL/UWAVE | | PO BOX 1054, Spring Hill, QLD 4004 | Phone +61-[0]7-32369366 | | terry(a)tdce.com.au | FAX +61-[0]7-32369930 | | http://www.tdce.com.au | Mobile +61-[0]414-663053 | "One thing they don't tell you about doing experimental physics is that sometimes you must work under adverse conditions ... like a state of sheer terror." -- W. K. Hartmann

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The Cidr Report
by Tony Bates 19 Feb '99

19 Feb '99

This is an auto-generated mail on Fri Feb 19 12:00:00 PST 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 19Feb99 0) General Status Table History ------------- Date Prefixes 120299 55713 130299 55907 140299 55818 150299 55997 160299 56035 170299 56178 180299 56403 190299 56528 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: 4569 Number of ASes announcing only one prefix: 2279 (1216 cidr, 1063 classful) Largest number of cidr routes: 353 announced by AS701 Largest number of classful routes: 850 announced by AS701 1) Gains by aggregating at the origin AS level --- 19Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 353 138 215 60.9% BCnet Backbone AS2493 273 155 118 43.2% iSTAR Internet, Inc. AS174 652 536 116 17.8% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS3749 149 65 84 56.4% TECNET AS1267 107 29 78 72.9% IUNET-AS AS4293 222 148 74 33.3% IMCI AS4755 151 80 71 47.0% Videsh Sanchar Nigam Ltd. India AS7046 280 215 65 23.2% UUNET-CUSTOMER AS4200 161 98 63 39.1% AGIS (Apex Global Information Ser AS4740 386 325 61 15.8% Ozemail Pty Ltd (ASN-OZEMAIL) AS1239 521 464 57 10.9% SprintLink Backbone AS1221 407 351 56 13.8% AARNET-AS AS7545 110 55 55 50.0% TPG Internet Pty Ltd AS7657 142 90 52 36.6% The Internet Group Limited AS72 89 37 52 58.4% Schlumberger Information Network AS10928 104 53 51 49.0% UNKNOWN AS577 222 172 50 22.5% Bell Canada Backbone AS7496 76 27 49 64.5% Power Up AS719 456 410 46 10.1% LANLINK autonomous system AS852 173 135 38 22.0% AGT Advance Communication AS5674 64 27 37 57.8% PBI-NET-BLK AS803 72 36 36 50.0% SaskNet Backbone AS701 850 814 36 4.2% Alternet AS6897 63 27 36 57.1% Global-One Spain AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS1785 249 217 32 12.9% NYSERNet Backbone AS6332 97 66 31 32.0% TELNOR AS4307 32 1 31 96.9% SVINET-1 AS2707 63 32 31 49.2% WEC 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 12 Feb '99

12 Feb '99

This is an auto-generated mail on Fri Feb 12 12:00:00 PST 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 12Feb99 0) General Status Table History ------------- Date Prefixes 050299 55641 060299 56070 070299 55738 080299 55776 090299 55763 100299 55822 110299 55912 120299 55713 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: 3332 Number of ASes announcing only one prefix: 1055 (0 cidr, 1055 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 816 announced by AS701 1) Gains by aggregating at the origin AS level --- 12Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 385 139 246 63.9% BCnet Backbone AS2493 275 157 118 42.9% iSTAR Internet, Inc. AS174 656 540 116 17.7% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS3749 158 66 92 58.2% TECNET AS4755 156 74 82 52.6% Videsh Sanchar Nigam Ltd. India AS1267 111 30 81 73.0% IUNET-AS AS4293 222 148 74 33.3% IMCI AS7046 274 211 63 23.0% UUNET-CUSTOMER AS4740 387 325 62 16.0% Ozemail Pty Ltd (ASN-OZEMAIL) AS4200 161 99 62 38.5% AGIS (Apex Global Information Ser AS1221 409 347 62 15.2% AARNET-AS AS1239 508 454 54 10.6% SprintLink Backbone AS72 89 37 52 58.4% Schlumberger Information Network AS7545 109 58 51 46.8% TPG Internet Pty Ltd AS10928 100 50 50 50.0% UNKNOWN AS7496 77 28 49 63.6% Power Up AS577 221 172 49 22.2% Bell Canada Backbone AS7657 141 94 47 33.3% The Internet Group Limited AS719 453 408 45 9.9% LANLINK autonomous system AS3221 84 42 42 50.0% EENet Autonomous System AS852 172 136 36 20.9% AGT Advance Communication AS803 72 36 36 50.0% SaskNet Backbone AS6897 63 27 36 57.1% Global-One Spain AS7745 39 4 35 89.7% BIGSKY-AS AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS701 816 783 33 4.0% Alternet AS1785 250 218 32 12.8% NYSERNet Backbone AS4307 32 1 31 96.9% SVINET-1 AS2707 63 32 31 49.2% WEC 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 05 Feb '99

05 Feb '99

This is an auto-generated mail on Fri Feb 5 12:00:00 PST 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 05Feb99 0) General Status Table History ------------- Date Prefixes 290199 55694 300199 55734 310199 55712 010299 55847 020299 55793 030299 55899 040299 55881 050299 55641 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: 4500 Number of ASes announcing only one prefix: 2232 (1187 cidr, 1045 classful) Largest number of cidr routes: 353 announced by AS701 Largest number of classful routes: 881 announced by AS701 1) Gains by aggregating at the origin AS level --- 05Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 386 140 246 63.7% BCnet Backbone AS2493 315 169 146 46.3% iSTAR Internet, Inc. AS174 656 541 115 17.5% Performance Systems International AS11305 115 13 102 88.7% UNKNOWN AS3749 158 66 92 58.2% TECNET AS1267 111 30 81 73.0% IUNET-AS AS4755 152 72 80 52.6% Videsh Sanchar Nigam Ltd. India AS4293 211 140 71 33.6% IMCI AS7046 273 207 66 24.2% UUNET-CUSTOMER AS4200 161 99 62 38.5% AGIS (Apex Global Information Ser AS4740 389 328 61 15.7% Ozemail Pty Ltd (ASN-OZEMAIL) AS1221 405 345 60 14.8% AARNET-AS AS701 881 825 56 6.4% Alternet AS1239 529 474 55 10.4% SprintLink Backbone AS7657 142 90 52 36.6% The Internet Group Limited AS72 89 37 52 58.4% Schlumberger Information Network AS7545 109 58 51 46.8% TPG Internet Pty Ltd AS10928 100 50 50 50.0% UNKNOWN AS7496 77 28 49 63.6% Power Up AS577 221 172 49 22.2% Bell Canada Backbone AS719 452 407 45 10.0% LANLINK autonomous system AS3221 84 42 42 50.0% EENet Autonomous System AS852 173 135 38 22.0% AGT Advance Communication AS803 72 36 36 50.0% SaskNet Backbone AS6897 64 28 36 56.2% Global-One Spain AS7745 39 4 35 89.7% BIGSKY-AS AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS6332 98 64 34 34.7% TELNOR AS2764 334 301 33 9.9% connect.com.au pty ltd 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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