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

The Cidr Report
by Tony Bates 12 May '00

12 May '00

This is an auto-generated mail on Fri May 12 12:00:00 PDT 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 12May00 0) General Status Table History ------------- Date Prefixes 080400 75151 090400 75137 100400 75215 110400 75403 120400 75730 130400 75919 010500 76182 020500 76265 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: 5027 Number of ASes announcing only one prefix: 1865 (0 cidr, 1865 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 1002 announced by AS701 1) Gains by aggregating at the origin AS level --- 12May00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 437 152 285 65.2% BCnet Backbone AS7046 500 336 164 32.8% COQUI-NET PRTC Internet AS9269 167 29 138 82.6% Hong Kong CTI AS9706 153 26 127 83.0% Pusan Metropolitan City Office of AS1221 529 408 121 22.9% TELSTRA-AS AS2609 123 18 105 85.4% EUnet-TN AS7545 164 66 98 59.8% TPG Internet Pty Ltd AS7657 264 168 96 36.4% The Internet Group Limited AS174 552 464 88 15.9% Performance Systems International AS7496 126 39 87 69.0% Power Up AS9304 109 24 85 78.0% Hutchcity AS9557 100 17 83 83.0% Pakistan Telecommunication Compan AS6429 204 121 83 40.7% RDC-INTERNET AS577 248 172 76 30.6% Bell Backbone AS7029 146 71 75 51.4% ALLTELNET AS209 463 392 71 15.3% Qwest Communications AS7018 529 463 66 12.5% AT&T WorldNet Service Backbone AS1727 162 98 64 39.5% MRMS-WEST AS4293 253 190 63 24.9% Internal ASN for C&W AS724 205 143 62 30.2% DLA-ASNBLOCK-AS AS7260 111 50 61 55.0% NORLIGHT AS705 270 209 61 22.6% ALTERNET-AS AS3749 121 61 60 49.6% TECNET AS3602 307 249 58 18.9% Sprint Canada Inc. AS6595 107 50 57 53.3% DODDSEUR AS4740 336 279 57 17.0% Ozemail Pty Ltd (ASN-OZEMAIL) AS5106 81 29 52 64.2% AADS-COLUMBUS AS7568 63 18 45 71.4% C.S. Communications Co., Ltd. AS816 308 266 42 13.6% UUNET Canada (ASN-UUNETCA-AS4) 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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RIPE NCC Region Weekly Routing Report
by Routing Analysis 11 May '00

11 May '00

This is an automated weekly mailing sent to the RIPE Routing WG e-mail list describing the state of the Internet Routing Table in Europe, Middle East and North Africa. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Europe, Middle East, North Africa Report 12 May, 2000 Analysis Summary ---------------- BGP routing table entries examined: 78765 Origin ASes present in the Internet Routing Table: 7433 Origin ASes announcing only one prefix: 2419 Transit ASes present in the Internet Routing Table: 1044 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 13 Illegal AS announcements present in the Routing Table: 9 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 4 Number of addresses announced to Internet: 1156696982 Equivalent to 68 /8s, 241 /16s and 203 /24s Percentage of available address space announced: 31.2 Percentage of allocated address space announced: 62.9 Percentage of available address space allocated: 49.6 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 12630 Prefixes being announced from the RIPE address blocks: 9690 RIPE Region origin ASes present in the Internet Routing Table: 1982 RIPE Region origin ASes announcing only one prefix: 929 RIPE Region transit ASes present in the Internet Routing Table: 382 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 13 Number of RIPE addresses announced to Internet: 69512741 Equivalent to 4 /8s, 36 /16s and 174 /24s Percentage of available RIPE address space announced: 69.1 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 RIPE Address Blocks 62/8, 193/8, 194/7 and 212/7 RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 3301 381 272 TeliaNet Sweden 1257 330 267 Swipnet AB 1270 258 411 UUNET Germany 1275 236 1149 DFN IP Service 1849 236 484 PIPEX 786 181 959 JANET IP Service 719 179 145 LANLINK 5515 167 355 Sonera Finland 517 163 200 Xlink 3320 153 245 Deutsche Telekom AG 2609 127 4 EUnet-TN 3303 126 303 Swisscom 2856 125 271 BTnet UK Regional network 13019 119 20 RR-BRETAGNE Autonomous System 1267 109 819 IUnet S.p.A 9057 90 26 Level 3 public IP n 1901 88 74 EUnet Austria 3215 88 118 RAIN 1290 85 195 PSINet UK Ltd. Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 1921 3302 UUNET Technologies, Inc. 7018 1163 3032 AT&T 1 867 4615 BBN Planet 7046 804 459 UUNET Technologies, Inc. 1221 802 975 Telstra 1239 732 1633 Sprint ICM-Inria 2914 732 1239 Verio, Inc. 3561 691 1601 Cable & Wireless USA 174 653 2842 PSINet Inc. 209 650 698 Qwest 271 469 411 BCnet Backbone 2764 452 112 connect.com.au pty ltd 705 449 24 UUNET Technologies, Inc. 3549 435 340 Frontier GlobalCenter 3602 435 77 Sprint Canada 1785 404 848 Sprint ICM 4740 402 83 Ozemail 1740 398 625 CERFnet 3301 381 272 TeliaNet Sweden List of Illegal AS's (Global) ----------------------------- Bad AS Designation Network Transit AS Description 64512 PRIVATE 62.31.0.0/19 5462 Cable Internet Ltd 65530 PRIVATE 63.179.128.0/24 4999 Sprint 65530 PRIVATE 63.179.142.0/24 4999 Sprint 65530 PRIVATE 63.179.190.0/24 4999 Sprint 65530 PRIVATE 63.179.191.0/24 4999 Sprint 65530 PRIVATE 63.179.230.0/24 4999 Sprint 65530 PRIVATE 63.179.249.0/24 4999 Sprint 64602 PRIVATE 63.236.57.0/24 209 Qwest 64601 PRIVATE 63.236.90.0/24 209 Qwest Advertised IANA Reserved Addresses ---------------------------------- Network Origin AS Description 39.96.40.224/30 14408 iCAIR 109.177.9.0/24 1785 Sprint ICM 219.91.160.0/22 7742 InternetNow, Inc. 219.91.164.0/23 7742 InternetNow, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:23 /9:5 /10:5 /11:9 /12:26 /13:48 /14:162 /15:278 /16:6447 /17:814 /18:1612 /19:5204 /20:3043 /21:3348 /22:4920 /23:6690 /24:45536 /25:129 /26:165 /27:67 /28:38 /29:48 /30:86 /31:0 /32:62 End of report

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Top 100 Maintainers List 20000509
by RIPE Database Administration 09 May '00

09 May '00

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1st draft agenda routing wg session RIPE36
by SchmitzJo＠aol.com 08 May '00

08 May '00

Dear colleagues, please find enclosed the first draft of the agenda for the session of the routing working group at RIPE 36, Budapest. The session will be held Wednesday, 17-May, 14:00 Routing WG session As announced previously, I would also like to point out that this time we have organized a tutorial on multicast, which will be held Tuesday, 16-May, 10:00 multicast tutorial Details of this tutorial will become available shortly. As usual comments, additions, welcome! --- R I P E 3 6 B U D A P E S T Routing Working Group Session 17-May-2000 Draft Agenda A. Preliminaries (Joachim Schmitz) (5min) - introduction - participants' list - volunteering of scribe - agenda bashing - RIPE 35 minutes - actions from earlier meetings B. Transition to RPSL (Andrei Robachevski, Joao Luis Silva Damas) (20min) C. RIS, Status and Plans (Antony Antony, Henk Uijterwaal) (20min) D. The Problem with BGP Convergence (Abha Ahuja, Craig Labovitz) (20min) E. A New Network Pathology Study (Avi Freedman) (20min) (to be confirmed) F. Some Words on Multicast Experience (Steve Noble) (20min) (to be confirmed) Y. General I/O with Other WGs Z. AOB --- Regards Joachim --- JS395-RIPE -- standard disclaimer ---

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RIPE NCC Region Weekly Routing Report
by Routing Analysis 04 May '00

04 May '00

This is an automated weekly mailing sent to the RIPE Routing WG e-mail list describing the state of the Internet Routing Table in Europe, Middle East and North Africa. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Europe, Middle East, North Africa Report 05 May, 2000 Analysis Summary ---------------- BGP routing table entries examined: 77213 Origin ASes present in the Internet Routing Table: 7325 Origin ASes announcing only one prefix: 2386 Transit ASes present in the Internet Routing Table: 1031 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 13 Illegal AS announcements present in the Routing Table: 7 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 5 Number of addresses announced to Internet: 1155938913 Equivalent to 68 /8s, 230 /16s and 58 /24s Percentage of available address space announced: 31.2 Percentage of allocated address space announced: 62.8 Percentage of available address space allocated: 49.6 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 12593 Prefixes being announced from the RIPE address blocks: 9656 RIPE Region origin ASes present in the Internet Routing Table: 1963 RIPE Region origin ASes announcing only one prefix: 924 RIPE Region transit ASes present in the Internet Routing Table: 379 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 13 Number of RIPE addresses announced to Internet: 68448848 Equivalent to 4 /8s, 20 /16s and 114 /24s Percentage of available RIPE address space announced: 68.0 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 RIPE Address Blocks 62/8, 193/8, 194/7 and 212/7 RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 3301 378 272 TeliaNet Sweden 1257 329 266 Swipnet AB 1270 257 410 UUNET Germany 1275 233 1140 DFN IP Service 1849 232 483 PIPEX 5515 188 311 Sonera Finland 719 178 129 LANLINK 786 176 911 JANET IP Service 517 162 200 Xlink 3320 150 229 Deutsche Telekom AG 3303 126 303 Swisscom 2609 125 4 EUnet-TN 2856 120 255 BTnet UK Regional network 13019 119 20 RR-BRETAGNE Autonomous System 1267 109 819 IUnet S.p.A 3215 89 118 RAIN 9057 89 26 Level 3 public IP n 1901 88 74 EUnet Austria 2874 84 84 Global One Services Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 1885 3286 UUNET Technologies, Inc. 7018 1141 3039 AT&T 1 850 4575 BBN Planet 1221 800 975 Telstra 7046 791 434 UUNET Technologies, Inc. 2914 771 1268 Verio, Inc. 1239 729 1625 Sprint ICM-Inria 3561 683 1598 Cable & Wireless USA 209 659 692 Qwest 174 652 2834 PSINet Inc. 271 469 411 BCnet Backbone 2764 450 112 connect.com.au pty ltd 3549 434 342 Frontier GlobalCenter 3602 423 77 Sprint Canada 705 410 22 UUNET Technologies, Inc. 1785 404 848 Sprint ICM 1740 394 607 CERFnet 4740 392 82 Ozemail 3301 378 272 TeliaNet Sweden List of Illegal AS's (Global) ----------------------------- Bad AS Designation Network Transit AS Description 65530 PRIVATE 63.179.128.0/24 4999 Sprint 65530 PRIVATE 63.179.142.0/24 4999 Sprint 65530 PRIVATE 63.179.190.0/24 4999 Sprint 65530 PRIVATE 63.179.191.0/24 4999 Sprint 65530 PRIVATE 63.179.249.0/24 4999 Sprint 64602 PRIVATE 63.236.57.0/24 209 Qwest 64601 PRIVATE 63.236.90.0/24 209 Qwest Advertised IANA Reserved Addresses ---------------------------------- Network Origin AS Description 39.96.40.224/30 14408 iCAIR 109.177.9.0/24 1785 Sprint ICM 197.138.137.0/24 2914 Verio, Inc. 219.91.160.0/22 7742 InternetNow, Inc. 219.91.164.0/23 7742 InternetNow, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:24 /9:4 /10:5 /11:9 /12:27 /13:47 /14:160 /15:272 /16:6355 /17:803 /18:1571 /19:5128 /20:2995 /21:3308 /22:4837 /23:6599 /24:44501 /25:126 /26:158 /27:61 /28:36 /29:47 /30:84 /31:1 /32:55 End of report

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Re: The Cidr Report
by brandon＠rd.bbc.co.uk 01 May '00

01 May '00

> over 2500 routes could be removed from the routing table or make room for 2500 of those long prefixes nobody wants to accept > this is pretty embarrassing for the operator community. Only when size of table is used as an excuse to not let longer prefixes be used, instead causing more address space to be used to get by those filters. regards brandon

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