- routing-wg - mailman.ripe.net

Re: The Cidr Report
by Sean M. Doran 18 Aug '98

18 Aug '98

Tli asked: | Exercise for the reader: If prefixes of length F and longer are filtered, | and a domain has a prefix of length N, how many prefixes can they propagate | into the backbone? How many before people start proxy aggregating them? A/ (2 ** F) - 1. [assuming nobody imposes exact-match prefix filters] B/ When we can easily do: "router bgp N proxy-aggregate route-map Lazy-Types ! exceptions route-map Lazy-Types deny 10 match as-path 100 ! the rule route-map Lazy-Types permit 20 match originated-prefix-count 16" then the number 16 strikes me as a starting point, although I probably want to re-read Dennis's comments from a few years ago. Do I pass? Sean.

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Re: The Cidr Report
by Tony Li 17 Aug '98

17 Aug '98

> > | AS762 118 81 37 31.4% WELLFLEET-AS > > Oddly enough, they are announcing the aggregate *and* the specifics: > > > brd1>sho ip bgp reg _762_ > *> 192.32.0.0/16 207.106.96.5 0 4969 6461 1673 > *> 192.32.2.0 207.106.96.5 0 4969 6461 1673 > *> 192.32.3.0 207.106.96.5 0 4969 6461 1673 > *> 192.32.4.0 207.106.96.5 0 4969 6461 1673 > *> 192.32.6.0 207.106.96.5 0 4969 6461 1673 If one were paranoid, one might imagine that they are doing so intentionally to see how many Cisco routers they can tank through prefix overload. The problem with this is that a) they aren't also announcing the /17's, /18's, ... /25's and b) overloading a Cisco seems to mean that someone buys a bigger Cisco, thereby enhancing Cisco's revenue stream. One is then left with the theory that they are advertising more specifics for optimality, but haven't discovered communities yet. Exercise for the reader: If prefixes of length F and longer are filtered, and a domain has a prefix of length N, how many prefixes can they propagate into the backbone? How many before people start proxy aggregating them? Tony

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Re: The Cidr Report
by Sean M. Doran 17 Aug '98

17 Aug '98

| 1) Gains by aggregating at the origin AS level | | --- 13Aug98 --- | ASnum NetsNow NetsCIDR NetGain % Gain Description | | AS3602 554 322 232 41.9% Sprint Canada Inc. | AS701 1133 933 200 17.7% Alternet | AS4293 442 255 187 42.3% IMCI | AS174 719 584 135 18.8% Performance Systems International | AS4200 192 100 92 47.9% AGIS (Apex Global Information Ser | AS2685 238 153 85 35.7% IBM Global Network - US | AS7046 229 163 66 28.8% UUNET-CUSTOMER | AS1239 535 487 48 9.0% SprintLink Backbone Sigh, bad trend. The big guys don't seem to care about aggregation any more. ob. NANOG: It's a *PLOT* to *CRUSH* the small providers, who are reliant on small and stable routing tables! Call the FTC!!!!!!! Funniest part: | AS762 118 81 37 31.4% WELLFLEET-AS Boy, *THEY* don't get it, that's for sure. Or maybe they want to be the ones to *SUPPLY THE BIGGER ROUTERS* to the poor small ISPs who will have to upgrade!! It's a PLOT! Sean.

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IRRd source code release
by Gerald Andrew Winters 17 Aug '98

17 Aug '98

For those who are interested we are announcing our first IRRd source code release which can be found at the following location: http://www.merit.edu/radb/irrd We will be updating the source code periodically with bug fixes, feature enhancements, etc... Each new IRRd release will be tagged with the version number to distinguish it from prior releases. The current code release is version 1.0. We wish to thank those people who have already begun to test IRRd and we continue to solicit users who feel they might be interested in the IRRd software package. -- IRRd Development Team <irrd-support(a)merit.edu>

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The Cidr Report
by Tony Bates 14 Aug '98

14 Aug '98

This is an auto-generated mail on Fri Aug 14 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 14Aug98 0) General Status Table History ------------- Date Prefixes 060898 52871 070898 52903 080898 52795 090898 52792 100898 52923 110898 52706 120898 52799 130898 52878 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- 1) Gains by aggregating at the origin AS level --- 13Aug98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS3602 554 322 232 41.9% Sprint Canada Inc. AS701 1133 933 200 17.7% Alternet AS271 336 145 191 56.8% BCnet Backbone AS4293 442 255 187 42.3% IMCI AS2493 391 231 160 40.9% iSTAR Internet, Inc. AS3749 207 69 138 66.7% TECNET AS174 719 584 135 18.8% Performance Systems International AS4200 192 100 92 47.9% AGIS (Apex Global Information Ser AS2685 238 153 85 35.7% IBM Global Network - US AS5668 130 46 84 64.6% Century Telephone Inc. AS4755 121 43 78 64.5% Videsh Sanchar Nigam Ltd. India AS4740 418 343 75 17.9% Ozemail Pty Ltd (ASN-OZEMAIL) AS3221 112 42 70 62.5% EENet Autonomous System AS7046 229 163 66 28.8% UUNET-CUSTOMER AS3804 214 156 58 27.1% Bell Solutions AS3403 181 127 54 29.8% TIAC AS8517 123 71 52 42.3% ULAKNET-ASN AS549 204 153 51 25.0% ONet Backbone AS6335 69 20 49 71.0% NTRNET AS72 87 39 48 55.2% Schlumberger Information Network AS719 460 412 48 10.4% LANLINK autonomous system AS1239 535 487 48 9.0% SprintLink Backbone AS10928 95 49 46 48.4% UNKNOWN AS1785 300 256 44 14.7% NYSERNet Backbone AS4539 71 28 43 60.6% NETROPOLIS AS852 157 117 40 25.5% AGT Advance Communication AS6181 66 26 40 60.6% FUSE-NET AS7122 120 82 38 31.7% MTS ADVANCED Network Policy AS762 118 81 37 31.4% WELLFLEET-AS AS10459 47 10 37 78.7% WANSASN 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 Sean M. Doran 09 Aug '98

09 Aug '98

Tony Bates <tbates(a)cisco.com> writes: [also found at http://www.employees.org/~tbates/ in the "Daily Report" section. Also very useful is the Lookup things in report by AS button] > 1) Gains by aggregating at the origin AS level I don't suppose there is anyone who knows people at these networks (and in particular Sprint Canada, Alternet, IMCI, iSTAR (also PSI, I guess), or IBM) and would be willing to contact them and say, "hey, you could and should do better aggregation"? You might want to look to see if any of the smaller networks are downstream from you. I did, and do. Sean. > ASnum NetsNow NetsCIDR NetGain % Gain Description > > AS3602 525 313 212 40.4% Sprint Canada Inc. > AS701 1137 934 203 17.9% Alternet > AS271 344 144 200 58.1% BCnet Backbone > AS4293 469 273 196 41.8% IMCI > AS2493 432 254 178 41.2% iSTAR Internet, Inc. > AS3749 223 66 157 70.4% TECNET > AS174 723 586 137 18.9% Performance Systems International > AS2685 267 162 105 39.3% IBM Global Network - US > AS5668 134 50 84 62.7% Century Telephone Inc. > AS3221 112 42 70 62.5% RIPE-ASNBLOCK4 > AS4969 86 20 66 76.7% Net Access > AS3804 220 155 65 29.5% Bell Solutions > AS4755 114 50 64 56.1% Videsh Sanchar Nigam Ltd. India > AS7046 228 165 63 27.6% UUNET-CUSTOMER > AS4740 393 336 57 14.5% ASN-OZEMAIL (Ozemail Pty Ltd) > AS10928 101 46 55 54.5% UNKNOWN > AS3403 180 126 54 30.0% TIAC > AS8517 122 72 50 41.0% UNKNOWN > AS6335 68 19 49 72.1% NTRNET > AS549 202 153 49 24.3% ONet Backbone > AS72 85 37 48 56.5% Schlumberger Information Network > AS1239 539 492 47 8.7% SprintLink Backbone > AS719 452 406 46 10.2% LANLINK-AS > AS4539 71 26 45 63.4% NETROPOLIS > AS4200 144 99 45 31.2% AGIS (Apex Global Information Ser > AS852 157 116 41 26.1% AGT Advance Communication > AS1785 293 252 41 14.0% NYSERNet Backbone > AS10459 48 7 41 85.4% WANSASN > AS10921 57 19 38 66.7% KIHNETWORK > AS762 117 80 37 31.6% WELLFLEET-AS

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Announce: IRRd-1.0 Beta Release
by Gerald Winters 07 Aug '98

07 Aug '98

IRRd-1.0 Beta Release --------------------- Merit Network is pleased to announce the 1.0 Beta release of the Internet Routing Registry Daemon (IRRd): http://www.merit.edu/radb/ IRRd is designed as a stand-alone routing registry server. IRRd handles RIPE-181 and RPSL whois and RAToolSet queries, as well as database management tasks, including mirroring and object submission. Future versions will support object authentication and notification. The IRRd server features a Cisco Systems-like management and configuration interface. The IRRd architecture was designed to address performance problems with the original RAWhoisd and RADB databases. The current IRRd version supports router configurations up to 600% faster than previously. The IRRd server also supports indexing to disk and memory, handles both the RIPE-181 and RPSL databases, determines database syntax dynamically, and indexes the entire IRR in about a minute. Although this is a beta release, the software is currently in production use as the main RABD (whois.ra.net) server. The current beta release only includes binaries. A complete source code release is planned at the end of the beta trial (anticipated mid September 1998). IRRd is freely available and may be redistributed so long as the University of Michigan copyright is preserved. Development of the RPSL portions of IRRd were supported by the National Science Foundation (NCR-9321060). All other sections were supported by Merit Network, Inc. The ongoing IRRd efforts include significant efforts by a number of Beta testers, including Kevin Oberman (ESnet), Mark Prior (connect.com.au pty ltd), John Heasley (Verio), George Matey (Bay Networks), WeeSan Lee (USC/ISI), and Pierre Thibaudeau (Teleglobe). Many thanks for your suggestions and support! A mailing list, irrd-discuss(a)merit.edu, has been created for IRRd users to share experiences and advice. Subscribe by sending mail to irrd-discuss-request(a)merit.edu. -- IRRd Development Team <irrd-support(a)merit.edu> Gerald Winters Craig Labovitz Tom Spindler Jake Khuon Susan R. Harris

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The Cidr Report
by Tony Bates 07 Aug '98

07 Aug '98

This is an auto-generated mail on Fri Aug 7 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 07Aug98 0) General Status Table History ------------- Date Prefixes 310798 52941 010898 52807 020898 52843 030898 52915 040898 52856 050898 52828 060898 52871 070898 52903 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: 3804 Number of ASes announcing only one prefix: 1844 (971 cidr, 873 classful) Largest number of cidr routes: 343 announced by AS3561 Largest number of classful routes: 1137 announced by AS701 1) Gains by aggregating at the origin AS level --- 07Aug98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS3602 551 320 231 41.9% Sprint Canada Inc. AS701 1137 934 203 17.9% Alternet AS271 333 143 190 57.1% BCnet Backbone AS4293 438 254 184 42.0% IMCI AS2493 406 240 166 40.9% iSTAR Internet, Inc. AS3749 222 69 153 68.9% TECNET AS174 719 587 132 18.4% Performance Systems International AS4200 192 100 92 47.9% AGIS (Apex Global Information Ser AS2685 243 157 86 35.4% IBM Global Network - US AS5668 129 47 82 63.6% Century Telephone Inc. AS4755 121 45 76 62.8% Videsh Sanchar Nigam Ltd. India AS3221 112 42 70 62.5% EENet Autonomous System AS7046 226 160 66 29.2% UNKNOWN AS3804 220 155 65 29.5% Bell Solutions AS4740 403 342 61 15.1% ASN-OZEMAIL (Ozemail Pty Ltd) AS10928 101 46 55 54.5% UNKNOWN AS3403 181 127 54 29.8% TIAC AS549 204 153 51 25.0% ONet Backbone AS8517 122 72 50 41.0% ULAKNET-ASN AS6335 68 19 49 72.1% NTRNET AS72 85 37 48 56.5% Schlumberger Information Network AS719 459 412 47 10.2% LANLINK autonomous system AS1239 532 485 47 8.8% SprintLink Backbone AS4539 70 27 43 61.4% NETROPOLIS AS1785 298 255 43 14.4% NYSERNet Backbone AS852 156 116 40 25.6% AGT Advance Communication AS6181 66 26 40 60.6% FUSE-NET AS10921 57 19 38 66.7% KIHNETWORK AS762 117 80 37 31.6% WELLFLEET-AS AS10459 47 10 37 78.7% WANSASN 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 31 Jul '98

31 Jul '98

This is an auto-generated mail on Fri Jul 31 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 31Jul98 0) General Status Table History ------------- Date Prefixes 240798 52857 250798 52796 260798 52635 270798 53086 280798 53322 290798 52992 300798 52883 310798 52941 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 218.218.180.0 from AS701 AS Summary ---------- Number of ASes in routing system: 3786 Number of ASes announcing only one prefix: 1835 (963 cidr, 872 classful) Largest number of cidr routes: 348 announced by AS3561 Largest number of classful routes: 1134 announced by AS701 1) Gains by aggregating at the origin AS level --- 31Jul98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS3602 534 316 218 40.8% Sprint Canada Inc. AS701 1134 933 201 17.7% Alternet AS271 338 144 194 57.4% BCnet Backbone AS4293 454 265 189 41.6% IMCI AS2493 420 244 176 41.9% iSTAR Internet, Inc. AS3749 222 69 153 68.9% TECNET AS174 711 581 130 18.3% Performance Systems International AS2685 249 157 92 36.9% IBM Global Network - US AS5668 126 48 78 61.9% Century Telephone Inc. AS3221 112 42 70 62.5% EENet Autonomous System AS4755 118 50 68 57.6% Videsh Sanchar Nigam Ltd. India AS3804 220 155 65 29.5% Bell Solutions AS7046 223 165 58 26.0% UUNET-CUSTOMER AS4740 397 339 58 14.6% ASN-OZEMAIL (Ozemail Pty Ltd) AS549 207 152 55 26.6% ONet Backbone AS10928 101 46 55 54.5% UNKNOWN AS3403 180 126 54 30.0% TIAC AS6335 68 19 49 72.1% NTRNET AS72 85 37 48 56.5% Schlumberger Information Network AS719 455 408 47 10.3% LANLINK autonomous system AS1239 537 490 47 8.8% SprintLink Backbone AS4539 71 26 45 63.4% NETROPOLIS AS4200 142 97 45 31.7% AGIS (Apex Global Information Ser AS237 95 50 45 47.4% MichNet Primary AS AS1785 294 253 41 13.9% NYSERNet Backbone AS852 155 115 40 25.8% AGT Advance Communication AS6181 66 26 40 60.6% FUSE-NET AS7122 120 82 38 31.7% MTS ADVANCED Network Policy AS10921 57 19 38 66.7% KIHNETWORK AS762 117 80 37 31.6% WELLFLEET-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 24 Jul '98

24 Jul '98

This is an auto-generated mail on Fri Jul 24 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 24Jul98 0) General Status Table History ------------- Date Prefixes 170798 52681 180798 52642 190798 52713 200798 52774 210798 53149 220798 52850 230798 52922 240798 52857 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: 3754 Number of ASes announcing only one prefix: 1827 (958 cidr, 869 classful) Largest number of cidr routes: 353 announced by AS3561 Largest number of classful routes: 1137 announced by AS701 1) Gains by aggregating at the origin AS level --- 24Jul98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS3602 525 313 212 40.4% Sprint Canada Inc. AS701 1137 934 203 17.9% Alternet AS271 344 144 200 58.1% BCnet Backbone AS4293 469 273 196 41.8% IMCI AS2493 432 254 178 41.2% iSTAR Internet, Inc. AS3749 223 66 157 70.4% TECNET AS174 723 586 137 18.9% Performance Systems International AS2685 267 162 105 39.3% IBM Global Network - US AS5668 134 50 84 62.7% Century Telephone Inc. AS3221 112 42 70 62.5% RIPE-ASNBLOCK4 AS4969 86 20 66 76.7% Net Access AS3804 220 155 65 29.5% Bell Solutions AS4755 114 50 64 56.1% Videsh Sanchar Nigam Ltd. India AS7046 228 165 63 27.6% UUNET-CUSTOMER AS4740 393 336 57 14.5% ASN-OZEMAIL (Ozemail Pty Ltd) AS10928 101 46 55 54.5% UNKNOWN AS3403 180 126 54 30.0% TIAC AS8517 122 72 50 41.0% UNKNOWN AS6335 68 19 49 72.1% NTRNET AS549 202 153 49 24.3% ONet Backbone AS72 85 37 48 56.5% Schlumberger Information Network AS1239 539 492 47 8.7% SprintLink Backbone AS719 452 406 46 10.2% LANLINK-AS AS4539 71 26 45 63.4% NETROPOLIS AS4200 144 99 45 31.2% AGIS (Apex Global Information Ser AS852 157 116 41 26.1% AGT Advance Communication AS1785 293 252 41 14.0% NYSERNet Backbone AS10459 48 7 41 85.4% WANSASN AS10921 57 19 38 66.7% KIHNETWORK AS762 117 80 37 31.6% WELLFLEET-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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