February 2000 - routing-wg - mailman.ripe.net

The Cidr Report
by Tony Bates 25 Feb '00

25 Feb '00

This is an auto-generated mail on Fri Feb 25 12:00:00 PST 2000 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 25Feb00 0) General Status Table History ------------- Date Prefixes 180200 72321 190200 72203 200200 72346 210200 72296 220200 72419 230200 72364 240200 72455 250200 72608 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 65.45.0.0/19 from AS10585 *** Bogus 99.0.0.0 from AS9841 *** Bogus 219.91.160.0/22 from AS7742 *** Bogus 219.91.164.0/23 from AS7742 AS Summary ---------- Number of ASes in routing system: 6762 Number of ASes announcing only one prefix: 3701 (2011 cidr, 1690 classful) Largest number of cidr routes: 774 announced by AS701 Largest number of classful routes: 1009 announced by AS701 1) Gains by aggregating at the origin AS level --- 25Feb00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 437 152 285 65.2% BCnet Backbone AS7046 438 292 146 33.3% UUNET-CUSTOMER AS1221 657 523 134 20.4% TELSTRA-AS AS9269 154 26 128 83.1% Hong Kong CTI AS9706 151 26 125 82.8% Pusan Metropolitan City Office of AS2609 122 23 99 81.1% EUnet-TN AS4293 272 177 95 34.9% Internal ASN for C&W AS2715 157 62 95 60.5% REDERIO-AS AS7657 274 181 93 33.9% The Internet Group Limited AS7545 154 61 93 60.4% TPG Internet Pty Ltd AS7496 124 38 86 69.4% Power Up AS6429 203 118 85 41.9% RDC-INTERNET AS174 553 471 82 14.8% Performance Systems International AS705 291 212 79 27.1% ALTERNET-AS AS9304 101 23 78 77.2% Hutchcity AS3749 137 61 76 55.5% TECNET AS577 245 172 73 29.8% Bell Backbone AS3602 326 253 73 22.4% Sprint Canada Inc. AS816 369 306 63 17.1% UUNET Canada (ASN-UUNETCA-AS4) AS4200 167 104 63 37.7% AGIS (Apex Global Information Ser AS7029 111 50 61 55.0% ALLTELNET AS4740 337 279 58 17.2% Ozemail Pty Ltd (ASN-OZEMAIL) AS1727 134 77 57 42.5% MRMS-WEST AS7260 103 48 55 53.4% NORLIGHT AS209 385 335 50 13.0% Qwest Communications AS9557 73 26 47 64.4% Pakistan Telecommunication Compan AS701 1009 962 47 4.7% Alternet AS2652 126 81 45 35.7% Government of Canada Telecommunic AS684 86 44 42 48.8% Manitoba Regional Network Backbon AS6528 48 6 42 87.5% WORLD-LYNX 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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minutes of RIPE33 Routing WG session
by SchmitzJo＠aol.com 22 Feb '00

22 Feb '00

Dear colleagues, please find below the minutes of our session during RIPE33 in Amsterdam. Apologies for getting this out so late - the delay is entirely up to myself. ---- Draft Minutes of Routing WG Session - RIPE 34, 22 September 1999 ---------------------------------------------------------------- Chair: Joachim Schmitz (JS395-RIPE) Scribe: Els Willems (EW21-RIPE), Ambrose Magee (AMRM1-RIPE) Attenders: 84 A. Preliminaries Joachim welcomed the participants, passed around the participants' list, and asked for a volunteer scribe. Els Willems volunteered to take the minutes and was supported by Ambrose Magee. The working group agreed upon the minutes of the previous meeting, and accepted the agenda circulated earlier on the mailing list. Review of previous actions: o 29.R1 G.Winters, J.Schmitz, RIPE NCC Definition of the IRR and an AUP -done- The definition and ideas on how to use the IRR are incorporated into the RIS and IRR reality checking projects o 31.R1 RIPE NCC, D.Kessens, J.Schmitz Basic design for an IPv6 IRR -postponed- Even though this topic is still considered important, there had been not enough input to continue o 32.R1 RIPE NCC, JLS.Damas Prepare draft document on RIPE-181 -> RPSL transition issues -in progress- The draft document is prepared, but not yet publicly available o 32.R2 J.Schmitz Write project definition for Routing Registry reality checking -done- B. Report from the RIPE NCC (JLS Damas) http://www.ripe.net/ripe/meetings/archive/ripe-34/presentations/routing-wg-… l/index.html Three major topics were dealt with: * operational issues * software status * transition to RPSL Regarding operational information, the database still grows, and with an accelarated rate since beginning of the year. The most used objects by far are domain (52%) and person registrations (39%), while more important objects from the operational point of view are inetnum objects (8.3%) and route objects (0.7%). The biggest project currently running is the software reimplementation. Therefore, development of the old code has been frozen except for some bug fixes, performance tuning for some updates, and a newly introduced queue management software. Reimplementation has slowed down due to several incidents around the database. Still, the query part of the server is close to being finished. More details will be given in a later talk. The human interface of the database software now consists of three people: Marek Bukowy, Engin Gndnz, and Ambrose Magee. They are handling manually approximately a quarter of the roughly 1,600 messages per week. PGP deployment is making slow progress and has roughly doubled since last report. Regarding transition to RPSL, because it depends on the reimplementation there has been some delay. Thus RIPE is still at phase II. Some new commercial registries have started directly on RPSL using the perl version, which is also used by ARIN. RADB will migrate at the end of the year. At RIPE code development is supposed to be finished at the end of the year as well. This code will support core rps-auth functionality, and will work on RPSL only. RIPE-181 objects will be translated back from RPSL, and be kept for a limited time. This part of the transition will most likely begin early next year. An update will be given on the transition process at the Routing WG session during next RIPE meeting. C. Updates to RIPE-178 (C.Panigl) Christian received some comments on his paper on route flap damping (published as RIPE-178). The document was known by most of the people in the audience, and those who did not know it also did not operate backbones, meaning knowledge in the community about issues around route flap damping is sufficient. There has been a proposal to dispose off the "golden prefix" approach. Regardless of this discussion, the access lists described in RIPE-178 need to be updated. Comments and input on this matter should be sent to the mailing list until end of next week. Christian received the action to update document RIPE-178 accordingly. D. Multicast Routing The agenda had again the item "MBone Developments" on it, which was dropped because the interest on this topic was too low. However, in general Multicast Routing is still a ver important and interesting topic. Joachim asked the audience where multicast projects are running, and there were some answers, e.g. from Randy Bush (Verio), Marc Roger (Belnet), Wolfgang Tremmel (Xlink). However, they are not the only ones working on multicast. This topic is also new for public exchange points. Daniel Karrenberg pointed out that the AMS-IX will meet and discuss on Friday. Gerd Besch then described the multicast test bed project the LINX is planning. They will set up the multicast exchange on separate hardware first for testing. During the test period connections to are for free (approx until end of October). With corresponding experience multicast will become a regular offer by the LINX. Details are not yet settled. Unfortunately, the presentation original has not become available so far. During next RIPE meeting, multicast will be treated as a focal topic with several presentations. Joachim asked for contributions from the audience. E. Routing between Europe and Asia - An Issue? (the presentation will become available shortly on the RIPE NCC web server) Thinking about routing, we normally look at the topology of the network resulting from the peering/transit agreements. However, traffic of the Internet is running on physical links, which are affected by geography. Historically speaking, Internet and USA are synonyms, with the US being the birth place of the Internet, and considering size still by far forms its biggest part. Thus in its beginning the Internet was US centric with no direct connection between Europe and Asia who exchanged their traffic across the US. However, other regions are growing rapidly, and the former "satellites" Europe and Asia are developing their own structure. A closer look at some sources of data reveals that we are still US centric today. Examples are physical network connections (essentially submarine cables), host counts, and routing policies. These items were looked at in more detail. It is obvious that most capacity on submarine cables extends from or to the US. Also regarding hosts, most of them are located in the US. Routing policies registered in the IRR only contain very little direct connections between Europe and Asia. While we are still very much US centric we may think that routing between Europe and Asia is an issue. After all, going via the US means crossing 15 timezones compared to the "direct" connection of only 9 timezones (thinking of distance covered and number of systems in between). The number of routers and hops across the US is definitely bigger, and thus the question on general performance arises. Joachim then asked the audience about their impression and whether they consider this to be a problem. Looking at physical distance, the difference between both connections (Europe - US - Asia compared to Europe - Asia) becomes smaller because in the first case, cables are running on the Northern hemisphere, while for a direct connection Europe - Asia they extend around the equator, leading to roughly similar lengths. Christian Panigl and Randy Bush pointed out that the fact which connection is chosen very much depends on the economics. Prices are significantly lower in the US due to lots of competition. Moreover, there is no tier 1 telco outside the US, making the US again a center in networking. Another reason for the Internet begin US centric is that lingua franca of the Internet is English giving English countries a natural advantage, even though Randy Bush expects the number of hosts outside the US to exceed the US hosts in maybe 2 years. As a bottom line, the situation is not going to change, at least not soon. F. Routing Information Service RIS (A.Antony) http://www.ripe.net/ripencc/pub-services/np/Talks/9909_ripe34/ http://www.ripe.net/ripencc/pub-services/np/ris-index.html Antony Antony presented on the Routing Information Service (RIS) project which had been proposed in RIPE-197, and now been fully described in the new document RIPE-200. The project has its own homepage http://www.ripe.net/ris, and discussion is meant to be held on the mailing list of the Routing WG routing-wg(a)ripe.net. RIS collects default free BGP routing information from the worldwide routing table, and stores it over time. Thus, ISPs may use the data stored to analyze problems, or track usage of addresses and ASs. Randy Bush clarifies that this is not suitable for immediate debugging purposes, but for historical analysis which covers a completely different scope of problem analysis. An interactive interface will be provided to the community to query the resulting database, including flap statistics. Moreover, data collected will be the foundation for IRR reality checking (see following presentation). The RIPE NCC is performing this project because they are a neutral body, and the NCC already has practical experience from the test traffic project. The following part of the presentation discussed a prototype to gather additional experience, and a proposed final setup. They include distributed remote route collectors and a central data collector. The software will support the distributed approach, consisting of BGP listeners, data handling, and user interfaces. Current experience was outlined with expected data volume per peer, on raw data, and data to be stored in the database. It became obvious that this is an ambitious project. Jake Khuon pointed out that they are doing a similar thing (IPMA project). Thomas Schmidt asked which reports were to be expected, but Antony pointed out that they first need to gain some experience comprising input from the community as well. A first prototype for beta testing will most likely become available before RIPE35, and plans are to enter into regular production service in late 2000. Input from the community is requested. G. Reality Checking of the IRR (JLS Damas) http://www.ripe.net/ripe/meetings/archive/ripe-34/presentations/irr/index.h… Looking at the Internet compared to its picture in the IRR, both seem to be disjoint. However, if real life data from the Internet is collected, it may be compared to the information stored in the database. This is essentially announced ASs, AS paths, and prefixes, a scope of data which is covered by the RIS. It is then interesting to find where there are deviations between the real Internet, and the IRR. This is most important to identify "hijacked" address space, or usage of IP address space or ASs which have not yet been allocated. The findings will be reported, and tools will be developed to help adapt data in the IRR to better depict real life Internet. But this is only one piece of the picture - at the same time, proper authentication methods for the IRR must be provided, so that only those parties may register data where they have authority. The project will start in January 2000. It is estimated that it will take 3 months time to develop reliable data acquisition and applications. The first report will most likely become available by RIPE36. Jake Khuon proposes to Joao to talk to Gerry Winters because much of groundwork was already done in the IPMA project (see their server at http://www.merit.edu/ipma) Y. General I/O with Other WGs There was no input from other working groups. The Routing WG will provide input to the IPv6 WG as RIS develops and is no longer restricted to IPv4. Z. AOB Since there were no additional comments or issues, Joachim closed the WG session. --- Agenda ------ R I P E 3 4 A M S T E R D A M Routing Working Group Session 22-September-1999 Draft Agenda A. Preliminaries (Joachim Schmitz) - introduction - participants' list - volunteering of scribe - agenda bashing - RIPE 33 minutes - actions from earlier meetings B. Report from the RIPE NCC (JLS Damas) C. Updates to RIPE-178 (C.Panigl) - input from the audience on route flap damping D. Multicast Routing - MBone Developments (N.N., to be confirmed) input from the audience - Multicast Routing Projects Introduction (J.Schmitz) LINX (G.Besch) Input from the audience E. Routing between Europe and Asia - An Issue? - A quick glance (J.Schmitz) - input from the audience F. Routing Information Service RIS (A.Antony) G. Reality Checking of the IRR (JLS Damas) Y. General I/O with Other WGs Z. AOB Summary of open Action Points ----------------------------- 31.R1 RIPE NCC, D.Kessens, J.Schmitz Basic design for an IPv6 IRR 32.R1 RIPE NCC, JLS.Damas Prepare draft document on RIPE-181 -> RPSL transition issues 34.R1 C.Panigl Provide updates to RIPE-178 Els Willems, Ambrose Magee, Joachim Schmitz, 15-Feb-2000 ----- Thanks Joachim Schmitz --- JS395-RIPE -- standard disclaimer ---

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The Cidr Report
by Tony Bates 18 Feb '00

18 Feb '00

This is an auto-generated mail on Fri Feb 18 12:00:01 PST 2000 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 18Feb00 0) General Status Table History ------------- Date Prefixes 110200 71788 120200 71855 130200 71752 140200 71950 150200 73959 160200 72163 170200 72085 180200 72321 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 219.91.160.0/22 from AS7742 *** Bogus 219.91.164.0/23 from AS7742 AS Summary ---------- Number of ASes in routing system: 6713 Number of ASes announcing only one prefix: 3650 (1988 cidr, 1662 classful) Largest number of cidr routes: 766 announced by AS701 Largest number of classful routes: 1002 announced by AS701 1) Gains by aggregating at the origin AS level --- 18Feb00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 437 154 283 64.8% BCnet Backbone AS7046 453 293 160 35.3% UUNET-CUSTOMER AS1221 658 522 136 20.7% TELSTRA-AS AS9269 147 24 123 83.7% Hong Kong CTI AS9706 147 30 117 79.6% Pusan Metropolitan City Office of AS2609 123 22 101 82.1% EUnet-TN AS7657 282 183 99 35.1% The Internet Group Limited AS4293 273 176 97 35.5% Internal ASN for C&W AS7545 153 60 93 60.8% TPG Internet Pty Ltd AS2715 153 61 92 60.1% REDERIO-AS AS6429 205 118 87 42.4% RDC-INTERNET AS7496 122 39 83 68.0% Power Up AS174 557 474 83 14.9% Performance Systems International AS705 297 216 81 27.3% ALTERNET-AS AS816 392 314 78 19.9% UUNET Canada (ASN-UUNETCA-AS4) AS3749 137 61 76 55.5% TECNET AS9304 99 24 75 75.8% Hutchcity AS577 246 173 73 29.7% Bell Backbone AS3602 325 252 73 22.5% Sprint Canada Inc. AS4200 168 105 63 37.5% AGIS (Apex Global Information Ser AS7029 111 50 61 55.0% ALLTELNET AS4740 338 280 58 17.2% Ozemail Pty Ltd (ASN-OZEMAIL) AS7260 103 46 57 55.3% NORLIGHT AS1727 134 79 55 41.0% MRMS-WEST AS209 384 333 51 13.3% Qwest Communications AS4151 100 50 50 50.0% USDA Internet Access Network AS701 1002 956 46 4.6% Alternet AS9557 66 21 45 68.2% Pakistan Telecommunication Compan AS2652 126 81 45 35.7% Government of Canada Telecommunic AS7568 60 16 44 73.3% C.S. Communications Co., Ltd. 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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None
by Anumita Biswas 18 Feb '00

18 Feb '00

Hi, I have 2 questions regarding routing: 1. Should an end-node (not a router) have RIP enabled on its interfaces? What should its behaviour be, with and without RIP enabled. 2. Consider this set up: οΏ½---------- οΏ½---------- | R1 |--------------------------| R2 | οΏ½---------- οΏ½---------- ^ ^ 172.17.2.13 172.17.2.14 (ff.ff.ff.0) (ff.ff.ff.0) R1 has a static route configured . To reach 172.17.100.1 next hop is 172.17.4.1 R1 and R2 have RIP1 enabled on their interfaces. Does R1 advertise 172.17.100.0 also to R2, alongwith advertisement for host route 172.17.100.1 ? Thanks in advance for your help Anumita.

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Top 100 Maintainers List 20000217
by RIPE Database Administration 17 Feb '00

17 Feb '00

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1. Draft agenda of the Routing WG session during RIPE35
by SchmitzJo＠aol.com 15 Feb '00

15 Feb '00

Dear colleagues, please find enclosed the first draft of the agenda for the session of the routing working group at RIPE 35, Amsterdam. The session will be held Thursday, 24-February, 09:00 As you probably remember from last time, we have a focus on multicast routing this time. Accordingly, a majority of presentations is on this topic. However, we will also have a look at the transition of the RIPE database to RPSL, and consistency checking of the routing registry. As usual comments, additions, welcome! --- R I P E 3 5 A M S T E R D A M Routing Working Group Session 24-February-2000 Draft Agenda A. Preliminaries (Joachim Schmitz) (5min) - introduction - participants' list - volunteering of scribe - agenda bashing - RIPE 34 minutes - actions from earlier meetings B. Report from the RIPE NCC (JLS Damas) - transition to RPSL (15min) - consistency checking of the IRR (5min) C. Report on the IRR at RADB (Gerald Winters) (20min) D. Report on RIS (RIPE NCC) (20min) E. Multicast Routing - introduction and overview (20min) - reports from active networks (15min each) * Renater * DFN * TEN-155 * SURFnet - reports from exchange points (15min each) * AMS-IX * LINX Y. General I/O with Other WGs Z. AOB --- Regards Joachim --- JS395-RIPE -- standard disclaimer ---

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The Cidr Report
by Tony Bates 11 Feb '00

11 Feb '00

This is an auto-generated mail on Fri Feb 11 12:00:00 PST 2000 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 11Feb00 0) General Status Table History ------------- Date Prefixes 040200 71335 050200 71195 060200 71192 070200 71282 080200 71554 090200 71729 100200 71823 110200 71788 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 219.91.160.0/22 from AS7742 *** Bogus 219.91.164.0/23 from AS7742 AS Summary ---------- Number of ASes in routing system: 6639 Number of ASes announcing only one prefix: 3604 (1959 cidr, 1645 classful) Largest number of cidr routes: 704 announced by AS701 Largest number of classful routes: 980 announced by AS701 1) Gains by aggregating at the origin AS level --- 11Feb00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 439 153 286 65.1% BCnet Backbone AS7046 426 283 143 33.6% UUNET-CUSTOMER AS1221 663 527 136 20.5% TELSTRA-AS AS9269 141 25 116 82.3% Hong Kong CTI AS9706 139 32 107 77.0% Pusan Metropolitan City Office of AS2609 124 18 106 85.5% EUnet-TN AS7657 286 187 99 34.6% The Internet Group Limited AS4293 272 175 97 35.7% Internal ASN for C&W AS2715 157 62 95 60.5% REDERIO-AS AS7545 154 61 93 60.4% TPG Internet Pty Ltd AS6429 205 118 87 42.4% RDC-INTERNET AS7496 124 38 86 69.4% Power Up AS174 559 476 83 14.8% Performance Systems International AS705 301 220 81 26.9% ALTERNET-AS AS816 379 302 77 20.3% UUNET Canada (ASN-UUNETCA-AS4) AS3749 137 61 76 55.5% TECNET AS9304 99 24 75 75.8% Hutchcity AS577 248 175 73 29.4% Bell Backbone AS3602 316 247 69 21.8% Sprint Canada Inc. AS7029 113 48 65 57.5% ALLTELNET AS4200 170 105 65 38.2% AGIS (Apex Global Information Ser AS4740 333 275 58 17.4% Ozemail Pty Ltd (ASN-OZEMAIL) AS1727 139 81 58 41.7% MRMS-WEST AS7260 103 46 57 55.3% NORLIGHT AS209 385 333 52 13.5% Qwest Communications AS4151 97 50 47 48.5% USDA Internet Access Network AS9557 66 21 45 68.2% Pakistan Telecommunication Compan AS4000 96 51 45 46.9% Global IP AS7568 59 15 44 74.6% C.S. Communications Co., Ltd. AS684 87 45 42 48.3% Manitoba Regional Network Backbon 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 Feb '00

04 Feb '00

This is an auto-generated mail on Fri Feb 4 12:00:00 PST 2000 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 04Feb00 0) General Status Table History ------------- Date Prefixes 280100 70416 290100 70627 300100 70736 310100 70866 010200 71239 020200 71006 030200 71078 040200 71335 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 219.91.160.0/22 from AS7742 *** Bogus 219.91.164.0/23 from AS7742 AS Summary ---------- Number of ASes in routing system: 6584 Number of ASes announcing only one prefix: 3579 (1939 cidr, 1640 classful) Largest number of cidr routes: 714 announced by AS701 Largest number of classful routes: 982 announced by AS701 1) Gains by aggregating at the origin AS level --- 04Feb00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 439 153 286 65.1% BCnet Backbone AS7046 426 280 146 34.3% UUNET-CUSTOMER AS9269 141 25 116 82.3% Hong Kong CTI AS1221 633 519 114 18.0% TELSTRA-AS AS2609 123 18 105 85.4% EUnet-TN AS7657 286 188 98 34.3% The Internet Group Limited AS4293 265 169 96 36.2% Internal ASN for C&W AS2715 155 61 94 60.6% REDERIO-AS AS7545 154 61 93 60.4% TPG Internet Pty Ltd AS9706 116 29 87 75.0% Pusan Metropolitan City Office of AS6429 204 119 85 41.7% RDC-INTERNET AS174 555 472 83 15.0% Performance Systems International AS7496 121 39 82 67.8% Power Up AS705 296 216 80 27.0% ALTERNET-AS AS577 255 178 77 30.2% Bell Backbone AS3749 137 61 76 55.5% TECNET AS9304 99 24 75 75.8% Hutchcity AS816 373 298 75 20.1% UUNET Canada (ASN-UUNETCA-AS4) AS3602 314 246 68 21.7% Sprint Canada Inc. AS7029 112 47 65 58.0% ALLTELNET AS4200 169 104 65 38.5% AGIS (Apex Global Information Ser AS4740 333 275 58 17.4% Ozemail Pty Ltd (ASN-OZEMAIL) AS7260 103 46 57 55.3% NORLIGHT AS1727 124 70 54 43.5% MRMS-WEST AS209 384 333 51 13.3% Qwest Communications AS4151 97 50 47 48.5% USDA Internet Access Network AS9557 67 21 46 68.7% Pakistan Telecommunication Compan AS7568 59 15 44 74.6% C.S. Communications Co., Ltd. AS4000 88 45 43 48.9% Global IP AS684 87 45 42 48.3% Manitoba Regional Network Backbon 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 20000203
by RIPE Database Administration 03 Feb '00

03 Feb '00

1 0