- routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Table Analysis 04 Jan '02

04 Jan '02

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. 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>. Routing Table Report 20:00 +10GMT Fri 04 Jan, 2002 Analysis Summary ---------------- BGP routing table entries examined: 106715 Prefixes after maximum aggregation: 71378 Unique aggregates announced to Internet: 51984 Total ASes present in the Internet Routing Table: 12269 Origin-only ASes present in the Internet Routing Table: 10659 Origin ASes announcing only one prefix: 4619 Transit ASes present in the Internet Routing Table: 1610 Transit-only ASes present in the Internet Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 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: 15 Number of addresses announced to Internet: 1163873544 Equivalent to 69 /8s, 95 /16s and 77 /24s Percentage of available address space announced: 31.4 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 71507 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 16569 Total APNIC prefixes after maximum aggregation: 10381 Prefixes being announced from the APNIC address blocks: 15196 Unique aggregates announced from the APNIC address blocks: 9754 APNIC Region origin ASes present in the Internet Routing Table: 1417 APNIC Region origin ASes announcing only one prefix: 460 APNIC Region transit ASes present in the Internet Routing Table: 244 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 78241984 Equivalent to 4 /8s, 169 /16s and 224 /24s Percentage of available APNIC address space announced: 57.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72289 Total ARIN prefixes after maximum aggregation: 47115 Prefixes being announced from the ARIN address blocks: 51975 Unique aggregates announced from the ARIN address blocks: 16922 ARIN Region origin ASes present in the Internet Routing Table: 7271 ARIN Region origin ASes announcing only one prefix: 2256 ARIN Region transit ASes present in the Internet Routing Table: 725 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 181949896 Equivalent to 10 /8s, 216 /16s and 85 /24s Percentage of available ARIN address space announced: 67.8 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17850 Total RIPE prefixes after maximum aggregation: 13882 Prefixes being announced from the RIPE address blocks: 14557 Unique aggregates announced from the RIPE address blocks: 9718 RIPE Region origin ASes present in the Internet Routing Table: 3529 RIPE Region origin ASes announcing only one prefix: 1903 RIPE Region transit ASes present in the Internet Routing Table: 631 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 105295872 Equivalent to 6 /8s, 70 /16s and 176 /24s Percentage of available RIPE address space announced: 69.7 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1343 1259 985 Telstra Pty Ltd 703 400 348 307 UUNET Technologies, Inc. 2764 399 378 373 connect.com.au pty ltd 2907 390 1891 360 SINET Japan 4755 315 115 88 Videsh Sanchar Nigam Ltd. Aut 7474 310 285 202 Optus Communications Pty Ltd 4134 268 1874 98 Data Communications Bureau 4766 189 1396 139 Korea Internet Exchange for " 17557 175 13 86 Pakistan Telecom 9443 173 45 69 Primus Telecommunications 1659 165 924 34 Taiwan Academic Network (TANe 9583 159 32 5 Satyam Infoway Ltd., 4740 149 34 123 OzEmail ISP 4812 143 288 36 China Telecom (Group) - Shang 9768 143 381 87 Korea Telecom 7657 126 22 85 The Internet Group Limited 17676 121 1920 7 XTAGE CORPORATION 4780 117 186 40 Digital United Inc. 4713 115 894 102 NTT Communications Corporatio 9800 112 194 21 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1089 2669 857 UUNET Technologies, Inc. 3301 401 925 353 TeliaNet Sweden 1257 253 489 250 SWIPnet Swedish IP Network 680 233 2149 231 DFN-IP service G-WiN 3215 233 562 152 France Telecom / &Equant 5515 216 705 176 Sonera Finland Autonomous Sys 3320 202 1961 170 Deutsche Telekom AG 786 180 1873 180 The JANET IP Service 719 164 289 118 LANLINK autonomous system 5400 148 60 85 Concert European Core Network 8708 145 20 139 Romania Data Systems S.A. 5549 140 78 64 Nextra Deutschland GmbH + Co. 2856 136 777 125 BTnet UK Regional network 3303 134 575 124 Swisscom Ltd 3269 115 663 70 TELECOM ITALIA 12302 111 7 35 MobiFon S.A. 517 109 230 107 KPNQwest Germany GmbH 8297 108 31 62 Teleglobe Autonomous System i 1290 96 396 71 PSINet UK Ltd. 5511 95 192 79 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2137 8786 1519 UUNET Technologies, Inc. 7018 1121 7412 876 AT&T 3967 902 359 427 Exodus Communication 1 869 8408 645 BBN Planet 3908 776 1639 479 Supernet, Inc. 1239 766 3180 600 Sprint 8010 714 62 11 PublicNet Communications, Inc 7046 688 822 439 UUNET Technologies, Inc. 4323 585 364 201 Time Warner Communications, I 852 580 978 384 Telus Advanced Communications 690 533 76 318 Merit Network 209 512 1861 296 Qwest 705 472 349 296 UUNET Technologies, Inc. 2914 459 2210 430 Verio, Inc. 3549 403 836 201 Global Crossing 7132 402 470 168 Southwestern Bell Internet Se 2149 396 230 333 Performance Systems, Inc. 3561 378 2253 328 Cable & Wireless USA 4151 363 704 16 USDA 577 352 588 220 Bell Advanced Communications Global Per AS Maximum Aggr summary ---------------------------------- ASN Net Savings Description 8010 703 PublicNet Communications, Inc 3967 475 Exodus Communication 4323 384 Time Warner Communications, I 1221 358 Telstra Pty Ltd 4151 347 USDA 3908 297 Supernet, Inc. 11371 271 Rhythms NetConnections 7046 249 UUNET Technologies, Inc. 7018 245 AT&T 6347 237 SAVVIS Communications Corpora 7132 234 Southwestern Bell Internet Se 702 232 UUNET Technologies, Inc. 4755 227 Videsh Sanchar Nigam Ltd. Aut 1 224 BBN Planet 209 216 Qwest 690 215 Merit Network 3549 202 Global Crossing 4355 199 EarthLink, Inc. 852 196 Telus Advanced Communications 6517 196 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 65021 PRIVATE 203.75.135.0/27 3462 Data Communication B 65021 PRIVATE 203.75.210.129/32 3462 Data Communication B 65021 PRIVATE 203.75.210.130/32 3462 Data Communication B 65021 PRIVATE 203.75.210.131/32 3462 Data Communication B 65021 PRIVATE 203.75.210.132/32 3462 Data Communication B 65021 PRIVATE 203.75.232.0/27 3462 Data Communication B 65021 PRIVATE 203.75.232.160/27 3462 Data Communication B 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 191.9.200.0/24 1290 PSINet UK Ltd. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:5 /10:7 /11:11 /12:37 /13:91 /14:230 /15:392 /16:7059 /17:1364 /18:2468 /19:7184 /20:6299 /21:4734 /22:7150 /23:8845 /24:59937 /25:233 /26:240 /27:150 /28:95 /29:79 /30:72 /31:0 /32:14 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1365 2137 UUNET Technologies, Inc. 1221 1197 1343 Telstra Pty Ltd 3967 719 902 Exodus Communication 702 706 1089 UUNET Technologies, Inc. 8010 698 714 PublicNet Communications, Inc 7018 584 1121 AT&T 3908 534 776 Supernet, Inc. 690 530 533 Merit Network 7046 523 688 UUNET Technologies, Inc. 4323 495 585 Time Warner Communications, I 1239 444 766 Sprint 1 443 869 BBN Planet 852 369 580 Telus Advanced Communications 705 355 472 UUNET Technologies, Inc. 2764 353 399 connect.com.au pty ltd 209 338 512 Qwest 703 324 400 UUNET Technologies, Inc. 4151 316 363 USDA 2149 298 396 Performance Systems, Inc. 7474 275 310 Optus Communications Pty Ltd Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:444 13:10 15:2 17:5 20:1 24:778 25:1 32:73 38:13 40:4 43:1 44:2 52:1 53:2 57:13 61:210 62:160 63:1912 64:1483 65:968 66:757 67:23 68:10 80:132 128:62 129:110 130:25 131:41 132:14 133:2 134:107 135:10 136:47 137:107 138:62 139:30 140:103 141:57 142:53 143:43 144:57 145:12 146:200 147:94 148:155 149:88 150:39 151:37 152:379 153:34 154:8 155:81 156:82 157:121 158:70 159:78 160:26 161:54 162:85 163:121 164:119 165:103 166:202 167:160 168:114 169:47 170:299 171:2 191:1 192:5330 193:2054 194:2063 195:853 196:430 198:3703 199:3293 200:2410 201:1 202:2854 203:4490 204:3254 205:2178 206:2591 207:2625 208:2605 209:2960 210:539 211:152 212:882 213:550 214:9 215:17 216:2937 217:395 218:12 End of report

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RIPE41, 1st draft agenda Routing WG
by SchmitzJo＠aol.com 03 Jan '02

03 Jan '02

Dear colleagues, please find enclosed the first draft of the agenda for the session of the Routing working group at RIPE 41, Amsterdam. The session will be held Tuesday, 15-Jan-2002, 14:00 Routing WG session, 1st slot A long standing project is taking shape and due to the importance of the topic the Routing WG and IPv6 WG are sharing the slot Wednesday, 16-Jan-2002, 11:00 IPv6 RPSL extensions I would also like to direct your attention to an interesting tutorial on Monday, 14-Jan-2002, 10:00 EOF full day tutorial Deploying Tight-SLA services on an Internet Backbone by Clarence Filsfils and John Evans As usual comments, additions, changes to the agenda of the Routing WG welcome --- R I P E 4 1 A M S T E R D A M Routing Working Group Session Slot 1: A. Preliminaries (Joachim Schmitz) - introduction - participants' list - volunteering of scribe - agenda bashing - RIPE 40 minutes - actions from earlier meetings B. Henk Uijterwaal: RIS Update C. Engin Gunduz: Routing Registry Consistency Check Project D. Philip Smith: Internet Routing Table Analysis Update E. Andre Oppermann: BGPDNS Y. AOB Slot 2: F: Marc Blanchet, Florent Parent, David Kessens, Joachim Schmitz: IPv6 RPSL extensions Z. I/O with other WGs ---- Thanks Joachim --- JS395-RIPE -- standard disclaimer ---

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The Cidr Report
by CIDR Report 28 Dec '01

28 Dec '01

This is an auto-generated mail on Fri Dec 28 23:00:01 PST 2001 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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 GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 28Dec01 0) General Status Table History ------------- Date Prefixes 211201 104932 221201 104791 231201 104801 241201 104769 251201 104805 261201 104705 271201 104655 281201 104604 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: 12178 Number of ASes announcing only one prefix: 7353 (4159 cidr, 3194 classful) Largest number of cidr routes: 768 announced by AS701 Largest number of classful routes: 1362 announced by AS701 1) Gains by aggregating at the origin AS level --- 28Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1178 908 270 22.9% Telstra Pty Ltd AS701 1362 1132 230 16.9% UUNET Technologies, Inc. AS4151 292 158 134 45.9% USDA AS577 319 195 124 38.9% Bell Advanced Communications Inc. AS16473 198 77 121 61.1% Bell South AS7018 812 696 116 14.3% AT&T AS705 284 181 103 36.3% UUNET Technologies, Inc. AS852 410 312 98 23.9% Telus Advanced Communications AS6595 147 50 97 66.0% DoD Education Activity Network As AS17557 169 82 87 51.5% Pakistan Telecom AS7046 308 222 86 27.9% UUNET Technologies, Inc. AS19632 93 10 83 89.2% Metropolis Intercom S.A. AS8010 120 38 82 68.3% PublicNet Communications, Inc. AS4755 216 136 80 37.0% Videsh Sanchar Nigam Ltd. Autonom AS1239 486 407 79 16.3% Sprint AS2048 182 106 76 41.8% State of Louisiana AS12302 109 33 76 69.7% MobiFon S.A. AS724 231 166 65 28.1% DLA Systems Automation Center AS703 283 221 62 21.9% UUNET Technologies, Inc. AS3464 155 97 58 37.4% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS3908 321 265 56 17.4% Supernet, Inc. AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS6471 121 66 55 45.5% ENTEL CHILE S.A. AS19834 63 8 55 87.3% NetForce, Inc. AS1 509 454 55 10.8% BBN Planet AS4323 366 312 54 14.8% Time Warner Communications, Inc. AS2149 323 270 53 16.4% Performance Systems, Inc. AS4200 103 51 52 50.5% Apex Global Information Services, AS209 297 246 51 17.2% Qwest 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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Weekly Routing Table Report
by Routing Table Analysis 28 Dec '01

28 Dec '01

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. 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>. Routing Table Report 20:00 Fri 28 Dec, 2001 Analysis Summary ---------------- BGP routing table entries examined: 106638 Prefixes after maximum aggregation: 71492 Unique aggregates announced to Internet: 51988 Total ASes present in the Internet Routing Table: 12270 Origin-only ASes present in the Internet Routing Table: 10667 Origin ASes announcing only one prefix: 4616 Transit ASes present in the Internet Routing Table: 1603 Transit-only ASes present in the Internet Routing Table: 54 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 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: 15 Number of addresses announced to Internet: 1162349320 Equivalent to 69 /8s, 72 /16s and 11 /24s Percentage of available address space announced: 31.4 Percentage of allocated address space announced: 59.3 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 71508 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 16591 Total APNIC prefixes after maximum aggregation: 10414 Prefixes being announced from the APNIC address blocks: 15192 Unique aggregates announced from the APNIC address blocks: 9760 APNIC Region origin ASes present in the Internet Routing Table: 1418 APNIC Region origin ASes announcing only one prefix: 457 APNIC Region transit ASes present in the Internet Routing Table: 237 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 77885632 Equivalent to 4 /8s, 164 /16s and 112 /24s Percentage of available APNIC address space announced: 57.6 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72227 Total ARIN prefixes after maximum aggregation: 47201 Prefixes being announced from the ARIN address blocks: 51936 Unique aggregates announced from the ARIN address blocks: 16941 ARIN Region origin ASes present in the Internet Routing Table: 7272 ARIN Region origin ASes announcing only one prefix: 2258 ARIN Region transit ASes present in the Internet Routing Table: 728 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 181020360 Equivalent to 10 /8s, 202 /16s and 38 /24s Percentage of available ARIN address space announced: 67.4 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17813 Total RIPE prefixes after maximum aggregation: 13877 Prefixes being announced from the RIPE address blocks: 14523 Unique aggregates announced from the RIPE address blocks: 9693 RIPE Region origin ASes present in the Internet Routing Table: 3526 RIPE Region origin ASes announcing only one prefix: 1901 RIPE Region transit ASes present in the Internet Routing Table: 628 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 105145088 Equivalent to 6 /8s, 68 /16s and 99 /24s Percentage of available RIPE address space announced: 69.6 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1333 1258 986 Telstra Pty Ltd 2764 403 378 377 connect.com.au pty ltd 703 400 344 307 UUNET Technologies, Inc. 2907 395 1891 361 SINET Japan 7474 311 285 202 Optus Communications Pty Ltd 4755 290 113 83 Videsh Sanchar Nigam Ltd. Aut 4134 268 1874 98 Data Communications Bureau 4766 185 1395 135 Korea Internet Exchange for " 1659 175 924 34 Taiwan Academic Network (TANe 9443 173 45 69 Primus Telecommunications 17557 169 13 86 Pakistan Telecom 9583 152 32 3 Satyam Infoway Ltd., 4740 149 34 123 OzEmail ISP 9768 141 381 87 Korea Telecom 4812 137 192 34 China Telecom (Group) - Shang 7657 124 21 83 The Internet Group Limited 17676 121 1920 7 XTAGE CORPORATION 4780 117 186 42 Digital United Inc. 4713 116 910 103 NTT Communications Corporatio 9800 112 194 21 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1091 2673 862 UUNET Technologies, Inc. 3301 402 925 354 TeliaNet Sweden 1257 252 473 249 SWIPnet Swedish IP Network 3215 236 562 152 France Telecom / &Equant 680 233 2149 231 DFN-IP service G-WiN 5515 217 721 177 Sonera Finland Autonomous Sys 3320 197 1962 166 Deutsche Telekom AG 786 182 1874 182 The JANET IP Service 719 164 289 118 LANLINK autonomous system 8708 149 20 140 Romania Data Systems S.A. 5400 145 59 82 Concert European Core Network 5549 140 78 63 Nextra Deutschland GmbH + Co. 2856 136 777 125 BTnet UK Regional network 3303 134 575 124 Swisscom Ltd 3269 115 663 70 TELECOM ITALIA 12302 112 7 36 MobiFon S.A. 517 109 230 107 KPNQwest Germany GmbH 8297 108 31 62 Teleglobe Autonomous System i 5511 99 192 79 France Telecom 1290 95 396 70 PSINet UK Ltd. ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2142 8793 1517 UUNET Technologies, Inc. 7018 1114 7418 870 AT&T 3967 932 361 455 Exodus Communication 1 870 8408 646 BBN Planet 1239 792 3154 613 Sprint 3908 771 1638 477 Supernet, Inc. 8010 715 62 11 PublicNet Communications, Inc 7046 701 823 446 UUNET Technologies, Inc. 209 621 1862 299 Qwest 4323 584 364 201 Time Warner Communications, I 852 578 978 382 Telus Advanced Communications 690 537 77 322 Merit Network 705 473 349 294 UUNET Technologies, Inc. 2914 458 2226 429 Verio, Inc. 3549 404 836 201 Global Crossing 7132 402 470 168 Southwestern Bell Internet Se 2149 399 230 336 Performance Systems, Inc. 3561 380 2253 330 Cable & Wireless USA 577 353 588 221 Bell Advanced Communications 3741 350 730 239 The Internet Solution Global Per AS Maximum Aggr summary ---------------------------------- ASN Net Savings Description 8010 704 PublicNet Communications, Inc 3967 477 Exodus Communication 4323 383 Time Warner Communications, I 1221 347 Telstra Pty Ltd 4151 325 USDA 209 322 Qwest 3908 294 Supernet, Inc. 11371 271 Rhythms NetConnections 7046 255 UUNET Technologies, Inc. 7018 244 AT&T 6347 238 SAVVIS Communications Corpora 7132 234 Southwestern Bell Internet Se 702 229 UUNET Technologies, Inc. 1 224 BBN Planet 690 215 Merit Network 4755 207 Videsh Sanchar Nigam Ltd. Aut 3549 203 Global Crossing 4355 198 EarthLink, Inc. 852 196 Telus Advanced Communications 6517 196 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 65021 PRIVATE 203.75.135.0/27 3462 Data Communication B 65021 PRIVATE 203.75.210.129/32 3462 Data Communication B 65021 PRIVATE 203.75.210.130/32 3462 Data Communication B 65021 PRIVATE 203.75.210.131/32 3462 Data Communication B 65021 PRIVATE 203.75.210.132/32 3462 Data Communication B 65021 PRIVATE 203.75.232.0/27 3462 Data Communication B 65021 PRIVATE 203.75.232.160/27 3462 Data Communication B 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 191.9.200.0/24 1290 PSINet UK Ltd. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:5 /10:7 /11:11 /12:37 /13:91 /14:229 /15:390 /16:7054 /17:1366 /18:2466 /19:7180 /20:6263 /21:4711 /22:7168 /23:8863 /24:59841 /25:245 /26:243 /27:157 /28:110 /29:86 /30:78 /31:0 /32:18 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1372 2142 UUNET Technologies, Inc. 1221 1187 1333 Telstra Pty Ltd 3967 751 932 Exodus Communication 702 705 1091 UUNET Technologies, Inc. 8010 699 715 PublicNet Communications, Inc 7018 578 1114 AT&T 7046 535 701 UUNET Technologies, Inc. 690 534 537 Merit Network 3908 529 771 Supernet, Inc. 4323 494 584 Time Warner Communications, I 1239 459 792 Sprint 209 448 621 Qwest 1 445 870 BBN Planet 852 367 578 Telus Advanced Communications 705 357 473 UUNET Technologies, Inc. 2764 357 403 connect.com.au pty ltd 703 326 400 UUNET Technologies, Inc. 2149 301 399 Performance Systems, Inc. 4151 295 341 USDA 7474 276 311 Optus Communications Pty Ltd Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:446 13:10 15:2 17:5 20:1 24:807 25:1 32:73 38:14 40:4 43:1 44:2 52:1 53:2 57:13 61:182 62:150 63:1912 64:1486 65:1030 66:741 67:17 68:6 80:134 128:61 129:110 130:24 131:41 132:14 133:2 134:107 135:10 136:45 137:107 138:63 139:30 140:102 141:58 142:53 143:44 144:55 145:12 146:201 147:94 148:154 149:88 150:39 151:38 152:379 153:34 154:8 155:81 156:84 157:121 158:71 159:77 160:26 161:54 162:84 163:123 164:119 165:100 166:204 167:160 168:114 169:48 170:294 171:2 191:1 192:5293 193:2062 194:2066 195:836 196:428 198:3710 199:3300 200:2403 201:1 202:2841 203:4505 204:3227 205:2181 206:2541 207:2618 208:2616 209:2935 210:532 211:151 212:879 213:553 214:9 215:16 216:2947 217:400 218:11 End of report

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The Cidr Report
by CIDR Report 21 Dec '01

21 Dec '01

This is an auto-generated mail on Fri Dec 21 23:00:00 PST 2001 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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 GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 21Dec01 0) General Status Table History ------------- Date Prefixes 141201 104473 151201 104490 161201 104499 171201 104515 181201 104565 191201 104617 201201 104497 211201 104932 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: 12187 Number of ASes announcing only one prefix: 7366 (4178 cidr, 3188 classful) Largest number of cidr routes: 773 announced by AS701 Largest number of classful routes: 1372 announced by AS701 1) Gains by aggregating at the origin AS level --- 21Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1179 909 270 22.9% Telstra Pty Ltd AS701 1372 1142 230 16.8% UUNET Technologies, Inc. AS4151 292 160 132 45.2% USDA AS577 317 193 124 39.1% Bell Advanced Communications Inc. AS16473 199 77 122 61.3% Bell South AS7018 795 682 113 14.2% AT&T AS6595 162 58 104 64.2% DoD Education Activity Network As AS705 286 183 103 36.0% UUNET Technologies, Inc. AS852 399 302 97 24.3% Telus Advanced Communications AS17557 169 80 89 52.7% Pakistan Telecom AS8010 123 38 85 69.1% PublicNet Communications, Inc. AS7046 306 225 81 26.5% UUNET Technologies, Inc. AS4755 213 132 81 38.0% Videsh Sanchar Nigam Ltd. Autonom AS19632 92 11 81 88.0% Metropolis Intercom S.A. AS1239 490 411 79 16.1% Sprint AS2048 183 107 76 41.5% State of Louisiana AS12302 109 33 76 69.7% MobiFon S.A. AS724 220 158 62 28.2% DLA Systems Automation Center AS703 284 222 62 21.8% UUNET Technologies, Inc. AS3464 160 98 62 38.8% Alabama SuperComputer Network AS4200 112 55 57 50.9% Apex Global Information Services, AS16758 63 6 57 90.5% IKON Office Solutions AS4323 368 312 56 15.2% Time Warner Communications, Inc. AS3908 321 265 56 17.4% Supernet, Inc. AS2149 326 270 56 17.2% Performance Systems, Inc. AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS1 514 458 56 10.9% BBN Planet AS6471 120 66 54 45.0% ENTEL CHILE S.A. AS209 297 246 51 17.2% Qwest AS855 144 94 50 34.7% Canadian Research Network 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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Weekly Routing Table Report
by Routing Table Analysis 21 Dec '01

21 Dec '01

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. 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>. Routing Table Report 20:00 Fri 21 Dec, 2001 Analysis Summary ---------------- BGP routing table entries examined: 108272 Prefixes after maximum aggregation: 71920 Unique aggregates announced to Internet: 52032 Total ASes present in the Internet Routing Table: 12309 Origin-only ASes present in the Internet Routing Table: 10690 Origin ASes announcing only one prefix: 4617 Transit ASes present in the Internet Routing Table: 1619 Transit-only ASes present in the Internet Routing Table: 56 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 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: 15 Number of addresses announced to Internet: 1144719040 Equivalent to 68 /8s, 59 /16s and 6 /24s Percentage of available address space announced: 30.9 Percentage of allocated address space announced: 58.4 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 73022 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17066 Total APNIC prefixes after maximum aggregation: 10574 Prefixes being announced from the APNIC address blocks: 15483 Unique aggregates announced from the APNIC address blocks: 9799 APNIC Region origin ASes present in the Internet Routing Table: 1426 APNIC Region origin ASes announcing only one prefix: 467 APNIC Region transit ASes present in the Internet Routing Table: 241 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 77823344 Equivalent to 4 /8s, 163 /16s and 125 /24s Percentage of available APNIC address space announced: 57.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73280 Total ARIN prefixes after maximum aggregation: 47428 Prefixes being announced from the ARIN address blocks: 52651 Unique aggregates announced from the ARIN address blocks: 16942 ARIN Region origin ASes present in the Internet Routing Table: 7291 ARIN Region origin ASes announcing only one prefix: 2244 ARIN Region transit ASes present in the Internet Routing Table: 743 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 180579276 Equivalent to 10 /8s, 195 /16s and 107 /24s Percentage of available ARIN address space announced: 67.3 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17921 Total RIPE prefixes after maximum aggregation: 13918 Prefixes being announced from the RIPE address blocks: 14615 Unique aggregates announced from the RIPE address blocks: 9696 RIPE Region origin ASes present in the Internet Routing Table: 3536 RIPE Region origin ASes announcing only one prefix: 1906 RIPE Region transit ASes present in the Internet Routing Table: 625 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 104469248 Equivalent to 6 /8s, 58 /16s and 19 /24s Percentage of available RIPE address space announced: 69.2 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1504 1261 1042 Telstra Pty Ltd 2764 399 376 373 connect.com.au pty ltd 703 398 346 305 UUNET Technologies, Inc. 2907 370 1832 340 SINET Japan 7474 310 285 201 Optus Communications Pty Ltd 4755 294 117 81 Videsh Sanchar Nigam Ltd. Aut 4134 268 1890 96 Data Communications Bureau 2521 190 165 28 PSINet Japan 4766 185 1395 135 Korea Internet Exchange for " 1659 175 924 34 Taiwan Academic Network (TANe 17557 174 13 83 Pakistan Telecom 9443 172 45 68 Primus Telecommunications 9583 150 32 3 Satyam Infoway Ltd., 4740 149 34 123 OzEmail ISP 7539 143 136 142 TANet2, sponsored by NSC, TAI 9768 142 381 87 Korea Telecom 4812 137 192 34 China Telecom (Group) - Shang 17676 125 1920 7 XTAGE CORPORATION 4713 120 942 107 NTT Communications Corporatio 7657 119 21 78 The Internet Group Limited RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1095 2688 864 UUNET Technologies, Inc. 3301 425 925 354 TeliaNet Sweden 1257 253 473 250 SWIPnet Swedish IP Network 3215 235 555 151 France Telecom / &Equant 680 233 2149 231 DFN-IP service G-WiN 5515 217 721 177 Sonera Finland Autonomous Sys 3320 186 1960 165 Deutsche Telekom AG 786 182 1874 182 The JANET IP Service 719 164 289 118 LANLINK autonomous system 8708 148 20 140 Romania Data Systems S.A. 5400 147 59 84 Concert European Core Network 5549 141 78 62 Nextra Deutschland GmbH + Co. 2856 136 777 125 BTnet UK Regional network 3303 134 575 124 Swisscom Ltd 8895 116 89 40 Saudi Arabia AS 3269 114 662 70 TELECOM ITALIA 12302 112 7 36 MobiFon S.A. 517 109 232 107 KPNQwest Germany GmbH 8297 107 31 64 Teleglobe Autonomous System i 5511 99 192 79 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2159 8829 1528 UUNET Technologies, Inc. 7018 1110 7353 868 AT&T 3967 955 363 474 Exodus Communication 705 925 377 404 UUNET Technologies, Inc. 1 873 8404 648 BBN Planet 1239 783 3169 606 Sprint 3908 764 1623 479 Supernet, Inc. 8010 719 62 12 PublicNet Communications, Inc 7046 698 823 450 UUNET Technologies, Inc. 209 614 1861 297 Qwest 4323 586 364 201 Time Warner Communications, I 852 578 977 381 Telus Advanced Communications 690 529 76 316 Merit Network 2914 462 2212 433 Verio, Inc. 3549 404 837 202 Global Crossing 2149 403 214 337 Performance Systems, Inc. 7132 400 468 166 Southwestern Bell Internet Se 3561 383 2269 330 Cable & Wireless USA 577 350 587 218 Bell Advanced Communications 3741 350 730 239 The Internet Solution Global Per AS Maximum Aggr summary ---------------------------------- ASN Net Savings Description 8010 707 PublicNet Communications, Inc 705 521 UUNET Technologies, Inc. 3967 481 Exodus Communication 1221 462 Telstra Pty Ltd 4323 385 Time Warner Communications, I 4151 326 USDA 209 317 Qwest 3908 285 Supernet, Inc. 11371 271 Rhythms NetConnections 7046 248 UUNET Technologies, Inc. 7018 242 AT&T 6347 238 SAVVIS Communications Corpora 7132 234 Southwestern Bell Internet Se 702 231 UUNET Technologies, Inc. 1 225 BBN Planet 690 213 Merit Network 4755 213 Videsh Sanchar Nigam Ltd. Aut 3549 202 Global Crossing 4355 198 EarthLink, Inc. 852 197 Telus Advanced Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65500 PRIVATE 62.40.11.0/24 8469 PIRONET NDH AG 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 65500 PRIVATE 195.227.39.0/24 8469 PIRONET NDH AG 65500 PRIVATE 195.227.73.0/24 8469 PIRONET NDH AG 65500 PRIVATE 195.227.79.0/24 8469 PIRONET NDH AG 65500 PRIVATE 195.227.88.0/24 8469 PIRONET NDH AG 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 191.9.200.0/24 1290 PSINet UK Ltd. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:5 /10:7 /11:11 /12:37 /13:90 /14:227 /15:390 /16:7078 /17:1375 /18:2466 /19:7184 /20:6254 /21:4731 /22:7188 /23:8914 /24:60996 /25:316 /26:302 /27:208 /28:173 /29:114 /30:147 /31:0 /32:41 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1380 2159 UUNET Technologies, Inc. 1221 1358 1504 Telstra Pty Ltd 705 808 925 UUNET Technologies, Inc. 3967 773 955 Exodus Communication 702 712 1095 UUNET Technologies, Inc. 8010 703 719 PublicNet Communications, Inc 7018 577 1110 AT&T 7046 534 698 UUNET Technologies, Inc. 3908 527 764 Supernet, Inc. 690 526 529 Merit Network 4323 496 586 Time Warner Communications, I 1239 449 783 Sprint 1 448 873 BBN Planet 209 444 614 Qwest 852 368 578 Telus Advanced Communications 2764 354 399 connect.com.au pty ltd 703 323 398 UUNET Technologies, Inc. 2149 306 403 Performance Systems, Inc. 4151 296 342 USDA 7474 275 310 Optus Communications Pty Ltd Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:446 13:10 15:2 17:5 20:1 24:805 25:1 32:73 38:14 40:4 43:1 44:2 52:1 53:2 57:13 61:167 62:155 63:2370 64:1497 65:1019 66:744 67:17 68:6 80:131 128:61 129:112 130:24 131:43 132:14 133:2 134:127 135:10 136:120 137:107 138:63 139:30 140:102 141:57 142:65 143:44 144:55 145:12 146:216 147:95 148:155 149:88 150:41 151:38 152:391 153:34 154:6 155:83 156:85 157:120 158:70 159:77 160:45 161:54 162:84 163:130 164:125 165:100 166:206 167:162 168:115 169:48 170:299 171:2 191:1 192:5359 193:2074 194:2068 195:839 196:430 198:3759 199:3316 200:2407 201:1 202:2873 203:4533 204:3325 205:2174 206:2588 207:2679 208:2608 209:2945 210:570 211:151 212:953 213:556 214:9 215:15 216:2950 217:395 218:11 End of report

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The Cidr Report
by CIDR Report 14 Dec '01

14 Dec '01

This is an auto-generated mail on Fri Dec 14 23:00:00 PST 2001 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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 GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 14Dec01 0) General Status Table History ------------- Date Prefixes 071201 104426 081201 104464 091201 104331 101201 104395 111201 104269 121201 104989 131201 105206 141201 104473 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: 12150 Number of ASes announcing only one prefix: 7358 (4177 cidr, 3181 classful) Largest number of cidr routes: 785 announced by AS701 Largest number of classful routes: 1373 announced by AS701 1) Gains by aggregating at the origin AS level --- 14Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1164 895 269 23.1% Telstra Pty Ltd AS701 1373 1143 230 16.8% UUNET Technologies, Inc. AS4151 294 160 134 45.6% USDA AS16473 203 77 126 62.1% Bell South AS577 317 193 124 39.1% Bell Advanced Communications Inc. AS7018 801 693 108 13.5% AT&T AS705 280 178 102 36.4% UUNET Technologies, Inc. AS6595 156 57 99 63.5% DoD Education Activity Network As AS852 395 300 95 24.1% Telus Advanced Communications AS8010 123 38 85 69.1% PublicNet Communications, Inc. AS4755 226 141 85 37.6% Videsh Sanchar Nigam Ltd. Autonom AS17557 164 79 85 51.8% Pakistan Telecom AS7046 305 224 81 26.6% UUNET Technologies, Inc. AS19632 92 11 81 88.0% Metropolis Intercom S.A. AS1239 485 405 80 16.5% Sprint AS2048 183 104 79 43.2% State of Louisiana AS12302 109 33 76 69.7% MobiFon S.A. AS6471 134 68 66 49.3% ENTEL CHILE S.A. AS3464 160 98 62 38.8% Alabama SuperComputer Network AS724 211 150 61 28.9% DLA Systems Automation Center AS703 279 218 61 21.9% UUNET Technologies, Inc. AS2149 337 278 59 17.5% Performance Systems, Inc. AS4200 112 55 57 50.9% Apex Global Information Services, AS16758 63 6 57 90.5% IKON Office Solutions AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS1 520 465 55 10.6% BBN Planet AS3908 311 258 53 17.0% Supernet, Inc. AS209 298 247 51 17.1% Qwest AS855 145 95 50 34.5% Canadian Research Network AS376 124 74 50 40.3% Reseau Interordinateurs Scientiqu 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

1 0

The Cidr Report
by CIDR Report 07 Dec '01

07 Dec '01

This is an auto-generated mail on Fri Dec 7 23:00:00 PST 2001 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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 GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 07Dec01 0) General Status Table History ------------- Date Prefixes 301101 104104 011201 104113 021201 104416 031201 104321 041201 104345 051201 104395 061201 104443 071201 104426 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: 12122 Number of ASes announcing only one prefix: 7324 (4156 cidr, 3168 classful) Largest number of cidr routes: 801 announced by AS701 Largest number of classful routes: 1352 announced by AS701 1) Gains by aggregating at the origin AS level --- 07Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1197 920 277 23.1% Telstra Pty Ltd AS4151 294 161 133 45.2% USDA AS577 314 193 121 38.5% Bell Advanced Communications Inc. AS16473 198 77 121 61.1% Bell South AS4755 226 141 85 37.6% Videsh Sanchar Nigam Ltd. Autonom AS2048 184 105 79 42.9% State of Louisiana AS1239 489 410 79 16.2% Sprint AS17557 155 78 77 49.7% Pakistan Telecom AS19632 87 11 76 87.4% Metropolis Intercom S.A. AS12302 107 31 76 71.0% MobiFon S.A. AS3464 161 96 65 40.4% Alabama SuperComputer Network AS2149 347 283 64 18.4% Performance Systems, Inc. AS4323 373 315 58 15.5% Time Warner Communications, Inc. AS16758 63 6 57 90.5% IKON Office Solutions AS4200 111 55 56 50.5% Apex Global Information Services, AS13999 68 14 54 79.4% Mega Cable S.A. de C.V. AS1 520 466 54 10.4% BBN Planet AS3908 310 257 53 17.1% Supernet, Inc. AS17561 115 64 51 44.3% Internet service provision to Wes AS376 123 73 50 40.7% Reseau Interordinateurs Scientiqu AS209 298 248 50 16.8% Qwest AS16814 65 18 47 72.3% NSS, S.A. AS15290 237 194 43 18.1% AT&T Canada IES AS11139 90 47 43 47.8% Cable & Wireless Dominica AS10620 64 21 43 67.2% TVCABLE BOGOTA AS10292 72 29 43 59.7% TELECOMMUNICATIONS OF JAMAICA AS5536 60 18 42 70.0% Internet Egypt Network AS5416 51 9 42 82.4% BATELCO-BH AS19834 56 14 42 75.0% NetForce, Inc. AS1267 68 26 42 61.8% Infostrada S.p.A. 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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New Document available: RIPE-201
by RIPE NCC Document Announcement Service 04 Dec '01

04 Dec '01

<Apologies for duplicate mails> New/Revised RIPE Document Announcement -------------------------------------- A revised/new document is available from the RIPE document store. Ref: ripe-201 Title: Routing Registry Consistency Check Author: Joachim Schmitz, Engin Gunduz, Shane Kerr, Andrei Robachevsky, Joao Luis Silva Damas Date: 4 December 2001 Format: PS=33719 TXT=15425 Obsoletes: Obsoleted by: Updates: Updated by: Short content description ------------------------- "Routing Registry Consistency Check" describes a project to crosscheck European Internet routing against data registered in the RIPE Routing Registry. This project was proposed as a new activity by the RIPE Routing Working Group. The document gives an overview of the project, discusses the implementation, and mentions some points that have to be addressed in future design documents. This document is intended to solicit input from interested parties. Accessing the RIPE document store --------------------------------- The RIPE document store is available via anonymous FTP to ftp.ripe.net, in the directory ripe/docs. The URLs for the new documents on the FTP-server are: ftp://ftp.ripe.net/ripe/docs/ripe-201.ps PostScript version ftp://ftp.ripe.net/ripe/docs/ripe-201.txt plain text version You can also access the RIPE documents in HTML format via WWW. RIPE-201 is available at the following URL: http://www.ripe.net/docs/rr-consistencycheck.html

1 0

The Cidr Report
by CIDR Report 30 Nov '01

30 Nov '01

This is an auto-generated mail on Fri Nov 30 23:00:00 PST 2001 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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 GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 30Nov01 0) General Status Table History ------------- Date Prefixes 231101 104388 241101 104158 251101 103973 261101 104689 271101 104073 281101 104130 291101 103988 301101 104104 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: 12046 Number of ASes announcing only one prefix: 7241 (4108 cidr, 3133 classful) Largest number of cidr routes: 797 announced by AS701 Largest number of classful routes: 1396 announced by AS701 1) Gains by aggregating at the origin AS level --- 30Nov01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1197 921 276 23.1% Telstra Pty Ltd AS4151 319 179 140 43.9% USDA AS16473 198 77 121 61.1% Bell South AS4755 226 142 84 37.2% Videsh Sanchar Nigam Ltd. Autonom AS2048 184 105 79 42.9% State of Louisiana AS1239 483 405 78 16.1% Sprint AS19632 87 11 76 87.4% Metropolis Intercom S.A. AS17557 154 83 71 46.1% Pakistan Telecom AS12302 104 36 68 65.4% MobiFon S.A. AS4200 127 62 65 51.2% Apex Global Information Services, AS2149 351 287 64 18.2% Performance Systems, Inc. AS3464 156 95 61 39.1% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS4323 370 314 56 15.1% Time Warner Communications, Inc. AS3908 303 251 52 17.2% Supernet, Inc. AS17561 115 64 51 44.3% Internet service provision to Wes AS1 513 462 51 9.9% BBN Planet AS209 292 242 50 17.1% Qwest AS376 122 73 49 40.2% Reseau Interordinateurs Scientiqu AS16814 65 18 47 72.3% NSS, S.A. AS11139 92 46 46 50.0% Cable & Wireless Dominica AS15290 240 196 44 18.3% AT&T Canada IES AS10620 64 21 43 67.2% TVCABLE BOGOTA AS10292 72 29 43 59.7% TELECOMMUNICATIONS OF JAMAICA AS5416 51 9 42 82.4% BATELCO-BH AS1267 68 26 42 61.8% Infostrada S.p.A. AS19834 51 11 40 78.4% NetForce, Inc. AS2007 167 129 38 22.8% INFONET AS12235 47 9 38 80.9% Cove Software Systems Inc AS2652 103 67 36 35.0% Government Telecommunications and 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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