- routing-wg - mailman.ripe.net

The Cidr Report
by Tony Bates 10 Jul '98

10 Jul '98

This is an auto-generated mail on Fri Jul 10 12:00:01 PDT 1998 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 10Jul98 0) General Status Table History ------------- Date Prefixes 020798 51673 030798 51528 050798 51481 060798 51579 070798 52104 080798 52116 090798 52255 100798 52359 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 213.102.1.0 from AS3259 *** Bogus 214.0.0.0/8 from AS568 *** Bogus 215.0.0.0/9 from AS568 *** Bogus 216.0.0.0/14 from AS2548 *** Bogus 216.13.4.0/23 from AS6401 *** Bogus 216.13.32.0/19 from AS6401 *** Bogus 216.15.0.0/19 from AS10368 *** Bogus 216.15.128.0/19 from AS7393 *** Bogus 216.19.0.0/18 from AS4492 *** Bogus 216.214.0.0/18 from AS7194 AS Summary ---------- Number of ASes in routing system: 3726 Number of ASes announcing only one prefix: 1823 (952 cidr, 871 classful) Largest number of cidr routes: 353 announced by AS3561 Largest number of classful routes: 1139 announced by AS701 1) Gains by aggregating at the origin AS level --- 10Jul98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 461 253 208 45.1% IMCI AS3602 514 310 204 39.7% Sprint Canada Inc. AS2493 485 281 204 42.1% iSTAR Internet, Inc. AS701 1139 937 202 17.7% Alternet AS271 339 144 195 57.5% BCnet Backbone AS3749 223 66 157 70.4% TECNET AS174 727 587 140 19.3% Performance Systems International AS2685 267 162 105 39.3% IBM Global Network - US AS4755 114 39 75 65.8% Videsh Sanchar Nigam Ltd. India AS3221 112 42 70 62.5% EENet Autonomous System AS5668 120 51 69 57.5% Century Telephone Inc. AS7046 226 161 65 28.8% UUNET-CUSTOMER AS3804 216 153 63 29.2% Bell Solutions AS4740 394 334 60 15.2% ASN-OZEMAIL (Ozemail Pty Ltd) AS10928 102 45 57 55.9% UNKNOWN AS3403 181 127 54 29.8% TIAC AS549 205 152 53 25.9% ONet Backbone AS8517 123 72 51 41.5% ULAKNET-ASN AS6335 69 18 51 73.9% NTRNET AS72 85 37 48 56.5% Schlumberger Information Network AS4539 73 25 48 65.8% NETROPOLIS AS1239 543 496 47 8.7% SprintLink Backbone AS719 449 403 46 10.2% LANLINK autonomous system AS3218 70 24 46 65.7% AS-RSSI AS4200 140 95 45 32.1% AGIS (Apex Global Information Ser AS852 158 117 41 25.9% AGT Advance Communication AS7545 102 61 41 40.2% TPG Internet Pty Ltd AS762 118 80 38 32.2% WELLFLEET-AS AS1785 290 252 38 13.1% NYSERNet Backbone AS6181 65 28 37 56.9% FUSE-NET 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 03 Jul '98

03 Jul '98

This is an auto-generated mail on Fri Jul 3 12:00:00 PDT 1998 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 03Jul98 0) General Status Table History ------------- Date Prefixes 190698 51379 200698 51329 210698 51500 220698 51541 230698 51362 240698 51537 250698 51460 260698 51523 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: 2703 Number of ASes announcing only one prefix: 828 (0 cidr, 828 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 1145 announced by AS701 1) Gains by aggregating at the origin AS level --- 03Jul98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 452 247 205 45.4% IMCI AS2493 488 283 205 42.0% iSTAR Internet, Inc. AS3602 511 313 198 38.7% Sprint Canada Inc. AS701 1145 950 195 17.0% Alternet AS271 336 145 191 56.8% BCnet Backbone AS3749 218 70 148 67.9% TECNET AS174 725 587 138 19.0% Performance Systems International AS4755 106 32 74 69.8% Videsh Sanchar Nigam Ltd. India AS3218 78 7 71 91.0% AS-RSSI AS7046 218 148 70 32.1% UUNET-CUSTOMER AS3221 112 42 70 62.5% EENet Autonomous System AS6227 96 28 68 70.8% !nteract AS10928 107 42 65 60.7% UNKNOWN AS5668 116 54 62 53.4% Century Telephone Inc. AS3804 208 146 62 29.8% Bell Solutions AS4740 382 328 54 14.1% ASN-OZEMAIL (Ozemail Pty Ltd) AS3403 180 127 53 29.4% TIAC AS2685 133 83 50 37.6% IBM Global Network - US AS549 194 145 49 25.3% ONet Backbone AS8517 120 72 48 40.0% ULAKNET-ASN AS72 85 37 48 56.5% Schlumberger Information Network AS6335 68 20 48 70.6% NTRNET AS4539 73 25 48 65.8% NETROPOLIS AS4200 145 97 48 33.1% AGIS (Apex Global Information Ser AS1239 543 496 47 8.7% SprintLink Backbone AS719 449 405 44 9.8% LANLINK autonomous system AS852 158 116 42 26.6% AGT Advance Communication AS762 118 80 38 32.2% WELLFLEET-AS AS6181 65 28 37 56.9% FUSE-NET AS4763 109 72 37 33.9% Telstra New Zealand 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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Looking Glass on www.ripe.net
by John LeRoy Crain 03 Jul '98

03 Jul '98

Dear Colleagues, The RIPE NCC has installed a looking glass on it's router at the AMS-IX. The looking glass is provided as a tool for network operators to troubleshoot network problems. The looking glass can be found at: http://www.ripe.net/cgi-bin/looking-glass See http://www.ripe.net/misc/lg-support.html for details on support. John Crain RIPE NCC

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The Cidr Report
by Tony Bates 26 Jun '98

26 Jun '98

This is an auto-generated mail on Fri Jun 26 12:00:00 PDT 1998 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 26Jun98 0) General Status Table History ------------- Date Prefixes 190698 51379 200698 51329 210698 51500 220698 51541 230698 51362 240698 51537 250698 51460 260698 51523 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 213.102.1.0 from AS3259 *** Bogus 214.0.0.0/8 from AS568 AS Summary ---------- Number of ASes in routing system: 3669 Number of ASes announcing only one prefix: 1763 (935 cidr, 828 classful) Largest number of cidr routes: 350 announced by AS3561 Largest number of classful routes: 1145 announced by AS701 1) Gains by aggregating at the origin AS level --- 26Jun98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 452 247 205 45.4% IMCI AS2493 488 283 205 42.0% iSTAR Internet, Inc. AS3602 511 313 198 38.7% Sprint Canada Inc. AS701 1145 950 195 17.0% Alternet AS271 336 145 191 56.8% BCnet Backbone AS3749 218 70 148 67.9% TECNET AS174 725 587 138 19.0% Performance Systems International AS4755 106 32 74 69.8% Videsh Sanchar Nigam Ltd. India AS3218 78 7 71 91.0% AS-RSSI AS7046 218 148 70 32.1% UUNET-CUSTOMER AS3221 112 42 70 62.5% EENet Autonomous System AS6227 96 28 68 70.8% !nteract AS10928 107 42 65 60.7% UNKNOWN AS5668 116 54 62 53.4% Century Telephone Inc. AS3804 208 146 62 29.8% Bell Solutions AS4740 382 328 54 14.1% ASN-OZEMAIL (Ozemail Pty Ltd) AS3403 180 127 53 29.4% TIAC AS2685 133 83 50 37.6% IBM Global Network - US AS549 194 145 49 25.3% ONet Backbone AS8517 120 72 48 40.0% ULAKNET-ASN AS72 85 37 48 56.5% Schlumberger Information Network AS6335 68 20 48 70.6% NTRNET AS4539 73 25 48 65.8% NETROPOLIS AS4200 145 97 48 33.1% AGIS (Apex Global Information Ser AS1239 543 496 47 8.7% SprintLink Backbone AS719 449 405 44 9.8% LANLINK autonomous system AS852 158 116 42 26.6% AGT Advance Communication AS762 118 80 38 32.2% WELLFLEET-AS AS6181 65 28 37 56.9% FUSE-NET AS4763 109 72 37 33.9% Telstra New Zealand 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 19 Jun '98

19 Jun '98

This is an auto-generated mail on Fri Jun 19 12:00:01 PDT 1998 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 19Jun98 0) General Status Table History ------------- Date Prefixes 120698 51404 130698 51272 140698 51351 150698 51499 160698 51736 170698 51866 180698 51372 190698 51379 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 213.102.1.0 from AS3259 AS Summary ---------- Number of ASes in routing system: 3657 Number of ASes announcing only one prefix: 1769 (940 cidr, 829 classful) Largest number of cidr routes: 353 announced by AS3561 Largest number of classful routes: 1129 announced by AS701 1) Gains by aggregating at the origin AS level --- 19Jun98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 463 242 221 47.7% IMCI AS2493 494 286 208 42.1% iSTAR Internet, Inc. AS3602 507 310 197 38.9% Sprint Canada Inc. AS271 336 145 191 56.8% BCnet Backbone AS701 1129 941 188 16.7% Alternet AS3749 220 65 155 70.5% TECNET AS174 721 582 139 19.3% Performance Systems International AS3218 78 7 71 91.0% AS-RSSI AS3221 112 42 70 62.5% EENet Autonomous System AS5668 117 49 68 58.1% Century Telephone Inc. AS10928 109 43 66 60.6% UNKNOWN AS7046 206 141 65 31.6% UUNET-CUSTOMER AS4755 100 38 62 62.0% Videsh Sanchar Nigam Ltd. India AS3804 205 143 62 30.2% Bell Solutions AS3403 183 125 58 31.7% TIAC AS1221 294 239 55 18.7% AARNET-AS AS549 205 152 53 25.9% ONet Backbone AS4740 366 316 50 13.7% ASN-OZEMAIL (Ozemail Pty Ltd) AS4200 149 100 49 32.9% AGIS (Apex Global Information Ser AS8517 120 72 48 40.0% ULAKNET-ASN AS72 85 37 48 56.5% Schlumberger Information Network AS4539 73 25 48 65.8% NETROPOLIS AS1239 542 495 47 8.7% SprintLink Backbone AS6335 67 24 43 64.2% NTRNET AS852 158 116 42 26.6% AGT Advance Communication AS719 443 404 39 8.8% LANLINK autonomous system AS762 116 79 37 31.9% WELLFLEET-AS AS6181 65 28 37 56.9% FUSE-NET AS803 72 36 36 50.0% SaskNet Backbone AS4763 108 72 36 33.3% Telstra New Zealand 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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Every Active Member Deserves A Paycheck!
by KZ0SI10g8＠carol18a.za 13 Jun '98

13 Jun '98

Every Active Member Deserves A Paycheck! No Sponsoring Required To Get A Paycheck! ***The True Network Marketers Dream.*** Simple And Unbelievably Lucrative! Click Here For More Information> http://www.gwc1.com/members/dv77/gwc1.htm To be removed - remove58(a)hotmail.com or call 904-282-0945

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The Cidr Report
by Tony Bates 12 Jun '98

12 Jun '98

This is an auto-generated mail on Fri Jun 12 12:00:00 PDT 1998 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 12Jun98 0) General Status Table History ------------- Date Prefixes 050698 50625 060698 51451 070698 51501 080698 51191 090698 51499 100698 51418 110698 51862 120698 51404 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: 3625 Number of ASes announcing only one prefix: 1735 (917 cidr, 818 classful) Largest number of cidr routes: 357 announced by AS3561 Largest number of classful routes: 1128 announced by AS701 1) Gains by aggregating at the origin AS level --- 12Jun98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 463 240 223 48.2% IMCI AS2493 501 291 210 41.9% iSTAR Internet, Inc. AS3602 506 313 193 38.1% Sprint Canada Inc. AS1740 545 353 192 35.2% CERFnet AS701 1128 939 189 16.8% Alternet AS3749 220 65 155 70.5% TECNET AS174 728 583 145 19.9% Performance Systems International AS4262 213 125 88 41.3% CERFnet Los Angeles SMDS AS3221 112 42 70 62.5% EENet Autonomous System AS4755 98 31 67 68.4% Videsh Sanchar Nigam Ltd. India AS10928 109 43 66 60.6% UNKNOWN AS7046 207 142 65 31.4% UUNET-CUSTOMER AS5668 114 49 65 57.0% Century Telephone Inc. AS3804 206 144 62 30.1% Bell Solutions AS271 113 54 59 52.2% BCnet Backbone AS1221 289 233 56 19.4% AARNET-AS AS549 205 152 53 25.9% ONet Backbone AS4740 375 323 52 13.9% ASN-OZEMAIL (Ozemail Pty Ltd) AS4539 74 24 50 67.6% NETROPOLIS AS72 85 37 48 56.5% Schlumberger Information Network AS6335 68 20 48 70.6% NTRNET AS8517 122 75 47 38.5% ULAKNET-ASN AS4200 148 101 47 31.8% AGIS (Apex Global Information Ser AS1239 541 494 47 8.7% SprintLink Backbone AS852 159 118 41 25.8% AGT Advance Communication AS7657 122 84 38 31.1% The Internet Group Limited AS762 115 78 37 32.2% WELLFLEET-AS AS719 443 406 37 8.4% LANLINK autonomous system AS6181 65 28 37 56.9% FUSE-NET AS803 72 36 36 50.0% SaskNet 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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Take it To The MAX...
by NETPALS＠postmaster.co.uk 07 Jun '98

07 Jun '98

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The Cidr Report
by Tony Bates 05 Jun '98

05 Jun '98

This is an auto-generated mail on Fri Jun 5 12:00:00 PDT 1998 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 05Jun98 0) General Status Table History ------------- Date Prefixes 290598 50967 300598 51064 310598 50995 010698 50998 020698 51248 030698 51503 040698 51477 050698 50625 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: 3625 Number of ASes announcing only one prefix: 1747 (923 cidr, 824 classful) Largest number of cidr routes: 360 announced by AS3561 Largest number of classful routes: 1108 announced by AS701 1) Gains by aggregating at the origin AS level --- 05Jun98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 466 240 226 48.5% IMCI AS2493 503 293 210 41.7% iSTAR Internet, Inc. AS174 810 622 188 23.2% Performance Systems International AS3602 499 315 184 36.9% Sprint Canada Inc. AS701 1108 929 179 16.2% Alternet AS3749 220 65 155 70.5% TECNET AS3221 112 42 70 62.5% EENet Autonomous System AS5668 115 47 68 59.1% Century Telephone Inc. AS4755 97 30 67 69.1% Videsh Sanchar Nigam Ltd. India AS3248 128 61 67 52.3% VIAnet AS10928 108 44 64 59.3% UNKNOWN AS7046 203 141 62 30.5% UUNET-CUSTOMER AS6269 125 66 59 47.2% AT&T NWCS backbone network AS3804 199 141 58 29.1% Bell Solutions AS271 110 52 58 52.7% BCnet Backbone AS549 206 153 53 25.7% ONet Backbone AS4740 374 324 50 13.4% ASN-OZEMAIL (Ozemail Pty Ltd) AS4539 74 24 50 67.6% NETROPOLIS AS1221 274 224 50 18.2% AARNET-AS AS72 85 37 48 56.5% Schlumberger Information Network AS6335 68 20 48 70.6% NTRNET AS1239 541 494 47 8.7% SprintLink Backbone AS4200 144 99 45 31.2% AGIS (Apex Global Information Ser AS852 159 118 41 25.8% AGT Advance Communication AS719 443 404 39 8.8% LANLINK autonomous system AS7657 120 82 38 31.7% The Internet Group Limited AS762 117 80 37 31.6% WELLFLEET-AS AS6181 65 28 37 56.9% FUSE-NET AS803 72 36 36 50.0% SaskNet Backbone AS4763 108 72 36 33.3% Telstra New Zealand 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 29 May '98

29 May '98

This is an auto-generated mail on Fri May 29 12:00:00 PDT 1998 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 29May98 0) General Status Table History ------------- Date Prefixes 220598 51216 230598 51177 240598 51178 250598 51283 260598 51277 270598 51199 280598 51156 290598 50967 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: 3606 Number of ASes announcing only one prefix: 1730 (908 cidr, 822 classful) Largest number of cidr routes: 359 announced by AS3561 Largest number of classful routes: 1096 announced by AS701 1) Gains by aggregating at the origin AS level --- 29May98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS816 807 522 285 35.3% UUNET Canada (ASN-UUNETCA-AS4) AS4293 468 238 230 49.1% IMCI AS2493 500 294 206 41.2% iSTAR Internet, Inc. AS174 815 626 189 23.2% Performance Systems International AS3602 493 310 183 37.1% Sprint Canada Inc. AS701 1096 918 178 16.2% Alternet AS3749 220 65 155 70.5% TECNET AS2048 164 92 72 43.9% LaNet AS5668 115 46 69 60.0% Century Telephone Inc. AS3221 110 41 69 62.7% EENet Autonomous System AS3248 129 61 68 52.7% VIAnet AS4755 95 28 67 70.5% Videsh Sanchar Nigam Ltd. India AS10928 108 44 64 59.3% UNKNOWN AS271 113 54 59 52.2% BCnet Backbone AS7046 190 132 58 30.5% UUNET-CUSTOMER AS3804 200 142 58 29.0% Bell Solutions AS549 206 154 52 25.2% ONet Backbone AS4539 74 24 50 67.6% NETROPOLIS AS1221 274 224 50 18.2% AARNET-AS AS72 85 37 48 56.5% Schlumberger Information Network AS6335 67 19 48 71.6% NTRNET AS1239 541 494 47 8.7% SprintLink Backbone AS4740 357 314 43 12.0% ASN-OZEMAIL (Ozemail Pty Ltd) AS852 159 118 41 25.8% AGT Advance Communication AS4200 136 96 40 29.4% AGIS (Apex Global Information Ser AS1591 144 105 39 27.1% SAIC DISM AS719 442 404 38 8.6% LANLINK autonomous system AS3493 165 127 38 23.0% INTERLINK AS6392 68 31 37 54.4% MidWest Communications, Inc. AS6181 65 28 37 56.9% FUSE-NET 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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