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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 15 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117841
Prefixes after maximum aggregation: 75221
Unique aggregates announced to Internet: 56261
Total ASes present in the Internet Routing Table: 14084
Origin-only ASes present in the Internet Routing Table: 12200
Origin ASes announcing only one prefix: 5503
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1182820221
Equivalent to 70 /8s, 128 /16s and 103 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 49875
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19177
Total APNIC prefixes after maximum aggregation: 11458
Prefixes being announced from the APNIC address blocks: 17691
Unique aggregates announced from the APNIC address blocks: 11192
APNIC Region origin ASes present in the Internet Routing Table: 1644
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 286
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 100095936
Equivalent to 5 /8s, 247 /16s and 87 /24s
Percentage of available APNIC address space announced: 65.8
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73738
Total ARIN prefixes after maximum aggregation: 46678
Prefixes being announced from the ARIN address blocks: 51463
Unique aggregates announced from the ARIN address blocks: 15658
ARIN Region origin ASes present in the Internet Routing Table: 7911
ARIN Region origin ASes announcing only one prefix: 2650
ARIN Region transit ASes present in the Internet Routing Table: 758
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182747360
Equivalent to 10 /8s, 228 /16s and 128 /24s
Percentage of available ARIN address space announced: 68.1
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
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20027
Total RIPE prefixes after maximum aggregation: 14972
Prefixes being announced from the RIPE address blocks: 16706
Unique aggregates announced from the RIPE address blocks: 11056
RIPE Region origin ASes present in the Internet Routing Table: 4146
RIPE Region origin ASes announcing only one prefix: 2248
RIPE Region transit ASes present in the Internet Routing Table: 765
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 119554752
Equivalent to 7 /8s, 32 /16s and 66 /24s
Percentage of available RIPE address space announced: 79.2
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, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4899
Total LACNIC prefixes after maximum aggregation: 2113
Prefixes being announced from the LACNIC address blocks: 4229
Unique aggregates announced from the LACNIC address blocks: 2724
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 66
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11737600
Equivalent to 0 /8s, 179 /16s and 26 /24s
Percentage of available LACNIC address space announced: 70.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1183 1185 859 Telstra Pty Ltd
703 393 365 309 UUNET
2907 351 1752 330 SINET Japan
2764 335 356 305 connect.com.au pty ltd
17557 308 22 118 Pakistan Telecom
7474 303 279 202 Optus Communications Pty Ltd
4134 297 2287 98 Data Communications Bureau
4755 241 131 65 Videsh Sanchar Nigam Ltd. Aut
4766 236 1807 152 Korea Internet Exchange for "
4814 234 79 15 China Telecom (Group)
17676 227 3554 29 XTAGE CORPORATION
9443 184 57 71 Primus Telecommunications
9583 171 33 10 Satyam Infoway Ltd.,
4515 142 102 76 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 130 724 124 TTnet
9800 125 191 18 CHINA UNICOM
7657 124 24 90 The Internet Group Limited
4621 121 11 67 UNINET-TH
4739 119 56 110 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1735 9055 1245 UUNET Technologies, Inc.
7018 1358 7153 941 AT&T
3908 1096 1652 509 Supernet, Inc.
1239 902 3171 658 Sprint
7843 745 375 279 Adelphia Corp.
852 709 1146 468 Telus Advanced Communications
1 659 8090 438 GENUITY
7046 591 858 288 UUNET Technologies, Inc.
209 578 2047 330 Qwest
19029 565 127 28 New Edge Networks
4323 523 455 166 Time Warner Communications, I
690 506 74 317 Merit Network
7066 488 204 256 Virginia Polytechnic Institut
6197 441 235 201 BellSouth Network Solutions,
705 440 134 200 UUNET Technologies, Inc.
3561 411 2265 355 Cable & Wireless USA
3549 408 744 294 Global Crossing
6198 405 176 198 BellSouth Network Solutions,
4355 402 313 118 EarthLink, Inc.
2548 401 1020 243 Business Internet, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 822 2334 688 UUNET - Commercial IP service
3301 380 1163 335 TeliaNet Sweden
3215 311 789 172 France Telecom Transpac
3320 244 1964 220 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 210 783 175 Sonera Solution Autonomous Sy
1257 208 415 202 SWIPnet Swedish IP Network
5400 194 86 112 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 172 1304 134 BTnet UK Regional network
8708 163 41 149 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
20858 138 17 4 This AS will be used to conne
12302 123 18 30 MobiFon S.A.
3246 119 375 116 Song Networks
8220 115 169 107 COLT Internet - International
3269 111 752 63 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 268 114 58 ImpSat USA, Inc.
8151 210 331 111 UniNet S.A. de C.V.
7303 183 28 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 154 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 96 6 32 TVCABLE BOGOTA
11992 81 8 30 Integrated Systems
11340 78 2 29 Red Universitaria Nacional
15311 75 27 37 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
6535 73 5 16 Chilesat Servicios Empresari
4270 71 18 10 Red de Interconexion Universi
6147 67 57 23 Telefonica Del Peru
4926 63 4 51 Telintar S.A.
7984 62 11 39 Global One Colombia
8065 60 6 15 Empresas Publicas de Medellin
15034 60 5 34 TIBA SA
7927 55 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1096 587 Supernet, Inc.
19029 565 537 New Edge Networks
7843 745 466 Adelphia Corp.
7018 1358 417 AT&T
4323 523 357 Time Warner Communications, I
18566 354 348 Covad Communications
1221 1183 324 Telstra Pty Ltd
1580 322 309 ANOSCEUR
7046 591 303 UUNET Technologies, Inc.
4151 343 287 USDA
4355 402 284 EarthLink, Inc.
6347 359 284 SAVVIS Communications Corpora
22927 284 264 TELEFONICA DE ARGENTINA
209 578 248 Qwest
1239 902 244 Sprint
852 709 241 Telus Advanced Communications
6197 441 240 BellSouth Network Solutions,
705 440 240 UUNET Technologies, Inc.
376 338 234 Reseau Interordinateurs Scien
7066 488 232 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:11 /12:46
/13:90 /14:236 /15:433 /16:7313 /17:1534 /18:2747
/19:7917 /20:7545 /21:5363 /22:8273 /23:9972 /24:65384
/25:167 /26:194 /27:110 /28:103 /29:69 /30:224
/31:19 /32:63
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 645 1096 Supernet, Inc.
7843 553 745 Adelphia Corp.
19029 531 565 New Edge Networks
702 497 822 UUNET - Commercial IP service
701 496 1735 UUNET Technologies, Inc.
690 454 506 Merit Network
7018 437 1358 AT&T
7066 387 488 Virginia Polytechnic Institut
18566 349 354 Covad Communications
6197 332 441 BellSouth Network Solutions,
6198 321 405 BellSouth Network Solutions,
1580 308 322 ANOSCEUR
1239 292 902 Sprint
7046 283 591 UUNET Technologies, Inc.
209 264 578 Qwest
3215 236 311 France Telecom Transpac
22927 234 284 TELEFONICA DE ARGENTINA
11492 232 237 Cable One
3301 225 380 TeliaNet Sweden
4355 223 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:1 12:592 13:10 15:4 17:3
20:5 24:872 25:1 32:57 38:27 40:12
44:1 55:1 57:16 61:382 62:384 63:1892
64:1386 65:1707 66:1205 67:135 68:207 69:20
80:309 81:77 128:113 129:111 130:19 131:66
132:9 133:2 134:142 135:7 136:494 137:109
138:215 139:76 140:154 141:92 142:87 143:44
144:149 145:18 146:255 147:254 148:254 149:78
150:43 151:87 152:282 153:36 154:8 155:104
156:105 157:75 158:98 159:150 160:22 161:74
162:131 163:87 164:255 165:135 166:93 167:296
168:381 169:56 170:243 171:6 192:5421 193:2383
194:1994 195:863 196:454 198:3602 199:3061 200:2585
202:3489 203:4834 204:3279 205:2113 206:2366 207:2450
208:2585 209:2839 210:628 211:282 212:882 213:776
214:12 215:21 216:3056 217:511 218:65 219:7
End of report
1
0
Dear Colleagues,
The draft document: "DRAFT: Distributing K-Root Service by Anycast
Routing of 193.0.14.129"
is available from:
http://www.ripe.net/ripe/draft-documents/k-root-anycasting.html
Apologies for the incorrect URL earlier.
Regards
Jeroen Bet
RIPE NCC WEBMASTER
==================
1
0
Dear Colleagues,
A new draft document is available from the RIPE Document Store and was
send to the RIPE DNS-WG list for comment.
"DRAFT: Distributing K-Root Service by Anycast Routing of 193.0.14.129"
is available at:
http://www/ripe/draft-documents/k-root-anycasting.htm
Comments on this draft document will be accepted up to and including
the week of RIPE 44, 27 - 31 January 2003.
After incorporating any suggested changes to the document, the final
document will be published as a RIPE Document.
All comments and suggestions should be sent to <dns-wg(a)ripe.net>.
Kind Regards,
Jeroen Bet
RIPE NCC Webmaster
2
1
Dear Colleagues,
The RIPE NCC received the IPv6 address range 2001:0A00::/23
from the IANA in November 2002.
You may wish to adjust any filters you have in place accordingly.
More information on the IP space administered by the RIPE NCC
can be found on our web site at:
<http://www.ripe.net/ripe/docs/smallest-alloc-sizes.html>
Kind regards,
Sabrina Wilmot
--
o------------------------------------------o
| Sabrina Wilmot sabrina(a)ripe.net |
| Registration Services Operations Manager |
| |
| RIPE NCC tel +31 20 535 4444 |
| www.ripe.net fax +31 20 535 4445 |
o------------------------------------------o
1
0
New RIPE Document Announcement
--------------------------------------
A new document is available from the RIPE document store.
Ref: ripe-264
Title: Smallest RIPE NCC Allocation / Assignment Sizes
Author: Joao Luis Silva Damas, Leo Vegoda
Date: 8 November 2002
Format: PS=10836 TXT=2169
Obsoletes: ripe-222, ripe-242, ripe-259
Obsoleted by:
Updates:
Updated by:
Short content description
-------------------------
The "Smallest RIPE NCC Allocation / Assignment Sizes" document
contains the size of the minimum and default allocations made by the
RIPE NCC to Local Internet Registries (LIRs) and End Users from IPv4
and IPv6 CIDR blocks allocated to the RIPE NCC by the Internet
Assigned Numbers Authority (IANA).
Accessing the RIPE document store
---------------------------------
You can access the RIPE documents in HTML format via our website at
the following URL:
http://www.ripe.net/ripe/docs/smallest-alloc-sizes.html
The RIPE Document Store is also 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-264.ps PostScript version
ftp://ftp.ripe.net/ripe/docs/ripe-264.txt plain text version
1
0
This report has been generated at Fri Nov 8 21:47:30 2002 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
01-11-02 115442 82842
02-11-02 115409 82853
03-11-02 115133 82798
04-11-02 115076 82886
05-11-02 115280 82945
06-11-02 115314 82968
07-11-02 115370 82934
08-11-02 115262 82976
AS Summary
13984 Number of ASes in routing system
5472 Number of ASes announcing only one prefix
1726 Largest number of prefixes announced by an AS
AS701 : ALTERNET-AS UUNET Technologies, Inc.
73138176 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 08Nov02 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 115332 82897 32435 28.1% All ASes
AS3908 1082 564 518 47.9% SUPERNETASBLK SuperNet, Inc.
AS701 1726 1253 473 27.4% ALTERNET-AS UUNET
Technologies, Inc.
AS7843 787 338 449 57.1% ADELPHIA-AS Adelphia Corp.
AS7018 1341 990 351 26.2% ATT-INTERNET4 AT&T WorldNet
Services
AS6197 453 107 346 76.4% BATI-ATL BellSouth Network
Solutions, Inc
AS18566 341 4 337 98.8% COVAD Covad Communications
AS4323 512 176 336 65.6% TW-COMM Time Warner
Communications, Inc.
AS1221 1193 868 325 27.2% ASN-TELSTRA Telstra Pty Ltd
AS209 627 331 296 47.2% ASN-QWEST Qwest
AS6347 358 81 277 77.4% DIAMOND SAVVIS Communications
Corporation
AS7046 588 312 276 46.9% UUNET-CUSTOMER UUNET
Technologies, Inc.
AS4355 398 134 264 66.3% ERMS-EARTHLNK EARTHLINK, INC
AS4151 337 90 247 73.3% USDA-1 USDA
AS705 441 207 234 53.1% ASN-ALTERNET UUNET
Technologies, Inc.
AS1239 893 662 231 25.9% SPRINTLINK Sprint
AS6198 409 179 230 56.2% BATI-MIA BellSouth Network
Solutions, Inc
AS852 694 468 226 32.6% ASN852 Telus Advanced
Communications
AS1 656 438 218 33.2% GNTY-1 Genuity
AS4814 233 15 218 93.6% CHINANET-BEIJING-AP China
Telecom (Group)Beijing
Telecom CompanyBeijing China
AS6140 262 65 197 75.2% IMPSAT-USA ImpSat USA, Inc.
AS22927 216 20 196 90.7% AR-TEAR2-LACNIC TELEFONICA DE
ARGENTINA
AS17676 227 32 195 85.9% GIGAINFRA APNIC ASN block
AS17557 317 126 191 60.3% PKTELECOM-AS-AP APNIC ASN
block
AS6595 246 56 190 77.2% DODDSEUR DoD Education
Activity Network Assistance
Center
AS4134 296 114 182 61.5% ERX-CHINALINK Data
Communications Bureau
AS690 513 336 177 34.5% MERIT-AS-27 Merit Network Inc.
AS2048 263 88 175 66.5% LANET-1 State of Louisiana
AS7132 241 70 171 71.0% SBIS-AS Southwestern Bell
Internet Services
AS2548 410 249 161 39.3% ICIX-MD-AS Business Internet,
Inc.
AS174 291 134 157 54.0% PSINET PSINet Inc.
Total 16351 8507 7844 48.0% Top 30 total
Please see http://www.cidr-report.org for the full report
------------------------------------
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1
0
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Routing Table Report 20:00 +10GMT Fri 08 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117475
Prefixes after maximum aggregation: 75129
Unique aggregates announced to Internet: 56268
Total ASes present in the Internet Routing Table: 14029
Origin-only ASes present in the Internet Routing Table: 12150
Origin ASes announcing only one prefix: 5470
Transit ASes present in the Internet Routing Table: 1879
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
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: 35
Number of addresses announced to Internet: 1182646652
Equivalent to 70 /8s, 125 /16s and 193 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 49536
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19149
Total APNIC prefixes after maximum aggregation: 11435
Prefixes being announced from the APNIC address blocks: 17688
Unique aggregates announced from the APNIC address blocks: 11164
APNIC Region origin ASes present in the Internet Routing Table: 1638
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 286
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 100198336
Equivalent to 5 /8s, 248 /16s and 231 /24s
Percentage of available APNIC address space announced: 65.9
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73464
Total ARIN prefixes after maximum aggregation: 46604
Prefixes being announced from the ARIN address blocks: 51373
Unique aggregates announced from the ARIN address blocks: 15607
ARIN Region origin ASes present in the Internet Routing Table: 7884
ARIN Region origin ASes announcing only one prefix: 2624
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182633696
Equivalent to 10 /8s, 226 /16s and 196 /24s
Percentage of available ARIN address space announced: 68.0
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
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19972
Total RIPE prefixes after maximum aggregation: 14993
Prefixes being announced from the RIPE address blocks: 16631
Unique aggregates announced from the RIPE address blocks: 11170
RIPE Region origin ASes present in the Internet Routing Table: 4130
RIPE Region origin ASes announcing only one prefix: 2242
RIPE Region transit ASes present in the Internet Routing Table: 763
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 119174080
Equivalent to 7 /8s, 26 /16s and 115 /24s
Percentage of available RIPE address space announced: 78.9
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, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4884
Total LACNIC prefixes after maximum aggregation: 2097
Prefixes being announced from the LACNIC address blocks: 4225
Unique aggregates announced from the LACNIC address blocks: 2688
LACNIC Region origin ASes present in the Internet Routing Table: 318
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11713024
Equivalent to 0 /8s, 178 /16s and 186 /24s
Percentage of available LACNIC address space announced: 69.8
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1187 1168 862 Telstra Pty Ltd
703 392 365 311 UUNET
2907 351 1752 331 SINET Japan
2764 336 356 308 connect.com.au pty ltd
17557 317 23 121 Pakistan Telecom
7474 298 279 197 Optus Communications Pty Ltd
4134 296 2287 98 Data Communications Bureau
4755 276 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 233 79 15 China Telecom (Group)
17676 227 3554 29 XTAGE CORPORATION
9443 183 57 71 Primus Telecommunications
9583 164 32 6 Satyam Infoway Ltd.,
4515 139 102 77 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
4716 129 722 123 TTnet
7657 123 24 89 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 118 56 109 Commerical Internet eXchange
4621 117 11 66 UNINET-TH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1757 9121 1243 UUNET Technologies, Inc.
7018 1338 7160 934 AT&T
3908 1095 1668 511 Supernet, Inc.
1239 894 3166 660 Sprint
7843 788 374 319 Adelphia Corp.
852 693 1147 467 Telus Advanced Communications
1 664 8106 439 GENUITY
19029 649 127 28 New Edge Networks
209 630 2032 328 Qwest
7046 588 860 290 UUNET Technologies, Inc.
690 513 75 322 Merit Network
4323 513 435 174 Time Warner Communications, I
7066 485 204 256 Virginia Polytechnic Institut
705 442 134 202 UUNET Technologies, Inc.
6197 436 233 200 BellSouth Network Solutions,
2548 410 1116 249 Business Internet, Inc.
3549 409 728 293 Global Crossing
6198 405 176 198 BellSouth Network Solutions,
4355 398 311 116 EarthLink, Inc.
3561 392 2266 341 Cable & Wireless USA
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 827 2366 694 UUNET - Commercial IP service
3301 379 1164 336 TeliaNet Sweden
3215 311 805 173 France Telecom Transpac
3320 246 1964 222 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 210 783 175 Sonera Solution Autonomous Sy
1257 207 415 202 SWIPnet Swedish IP Network
5400 196 86 114 BT Ignite European Backbone
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1303 132 BTnet UK Regional network
8708 162 41 148 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
20858 136 9 33 This AS will be used to conne
12302 123 18 30 MobiFon S.A.
3246 119 375 116 Song Networks
8220 114 169 106 COLT Internet - International
3269 110 752 63 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 253 114 58 ImpSat USA, Inc.
8151 213 347 112 UniNet S.A. de C.V.
7303 183 28 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 153 175 109 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 99 6 30 TVCABLE BOGOTA
11992 81 8 30 Integrated Systems
11340 78 2 29 Red Universitaria Nacional
15311 77 27 33 Telefonica Empresas
1916 74 425 41 Fundacao de Amparo a Pesquisa
4270 71 18 10 Red de Interconexion Universi
6535 71 4 15 Chilesat Servicios Empresari
7984 64 27 41 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
8065 61 6 16 Empresas Publicas de Medellin
15034 60 5 34 TIBA SA
7927 55 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
19029 649 621 New Edge Networks
3908 1095 584 Supernet, Inc.
7843 788 469 Adelphia Corp.
7018 1338 404 AT&T
4323 513 339 Time Warner Communications, I
18566 341 337 Covad Communications
1221 1187 325 Telstra Pty Ltd
4151 337 321 USDA
1580 321 308 ANOSCEUR
209 630 302 Qwest
7046 588 298 UUNET Technologies, Inc.
6347 359 284 SAVVIS Communications Corpora
4355 398 282 EarthLink, Inc.
705 442 240 UUNET Technologies, Inc.
376 343 240 Reseau Interordinateurs Scien
6197 436 236 BellSouth Network Solutions,
1239 894 234 Sprint
7066 485 229 Virginia Polytechnic Institut
852 693 226 Telus Advanced Communications
1 664 225 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:239 /15:430 /16:7308 /17:1533 /18:2725
/19:7888 /20:7517 /21:5356 /22:8219 /23:9933 /24:65078
/25:186 /26:221 /27:129 /28:128 /29:103 /30:229
/31:19 /32:56
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 641 1095 Supernet, Inc.
19029 615 649 New Edge Networks
7843 601 788 Adelphia Corp.
702 498 827 UUNET - Commercial IP service
701 488 1757 UUNET Technologies, Inc.
690 461 513 Merit Network
7018 431 1338 AT&T
7066 384 485 Virginia Polytechnic Institut
18566 336 341 Covad Communications
6197 329 436 BellSouth Network Solutions,
6198 321 405 BellSouth Network Solutions,
209 318 630 Qwest
1580 307 321 ANOSCEUR
1239 282 894 Sprint
7046 278 588 UUNET Technologies, Inc.
3215 235 311 France Telecom Transpac
11492 228 233 Cable One
3301 225 379 TeliaNet Sweden
4355 222 398 EarthLink, Inc.
11537 220 226 University Corporation for Ad
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:1 12:581 13:10 15:4 17:2
20:5 24:912 25:1 32:47 38:26 40:13
44:1 55:1 57:15 61:374 62:386 63:1903
64:1383 65:1653 66:1213 67:125 68:200 69:19
80:294 81:69 128:127 129:109 130:21 131:64
132:9 133:2 134:143 135:7 136:412 137:108
138:216 139:76 140:154 141:87 142:86 143:46
144:149 145:18 146:254 147:250 148:255 149:77
150:41 151:87 152:286 153:36 154:8 155:103
156:104 157:104 158:89 159:149 160:20 161:74
162:131 163:89 164:253 165:138 166:93 167:305
168:294 169:59 170:243 171:6 192:5418 193:2377
194:1985 195:848 196:439 198:3609 199:3084 200:2580
202:3512 203:4861 204:3282 205:2103 206:2365 207:2446
208:2557 209:2791 210:611 211:284 212:888 213:782
214:11 215:20 216:3041 217:501 218:51 219:7
End of report
1
0
Dear Colleagues,
below you find the proposal to start distributing the service
of k.root-servers.net by using anycast. I welcome comments
and suggestions either privately or on the DNS WG list.
I would like to see a good discussion so that we can proceed
with support from the RIPE community. Can we have this
discussion on the DNS WG list too please? In particular
I would like to hear technical suggestions for Appendix A.
Thanks
Daniel
---------
Distributing K-Root Service by Anycast Routing of
193.0.14.129
Daniel Karrenberg
<daniel.karrenberg(a)ripe.net>
$Id: k-any.ms,v 1.9 2002/11/05 12:03:32 dfk Exp $
ABSTRACT
This memo proposes to distribute the DNS ser-
vice provided by k.root-servers.net across multi-
ple locations in the Internet topology. It dis-
cusses the motivation for and the principles of
implementation. A first inventory of detailed
issues is provided in an appendix.
1. Introduction
DNS root name servers need to be accessible by Internet
hosts in order for the DNS to function properly. Accessi-
bility is determined by the ability of the server to handle
a given query load and by the connectivity of the server to
the rest of the Internet.
The RIPE NCC operates k.root-servers.net (K-root) in the
RIPE region in order to help safeguard the quality of the
DNS in the Internet and in the RIPE region in particular.
The RIPE NCC obtains guidance from RIPE.
For K-root the connectivity issue has been addressed by
placing it at the LINX, a topologically very well connected
point. The server load issue has been addressed by deploy-
ing successive generations of hardware with increased pro-
cessing power and by distributing the load locally among a
number of machines at different LINX sites. A cold spare
system has been available in Amsterdam at all times to pro-
vide continuity in case of catastrophic failures at the pri-
mary server location. Over the years this set-up has pro-
vided very reliable service.
However issues about differences in connectivity to the ser-
vice across the RIPE region have been raised repeatedly. A
more distributed provision of the service is generally seen
as positive because of
- lower network delays due to shorter paths between
clients and servers,
- less dependence on connectivity to a single location,
- better load and DDoS attack resiliance because of dis-
tributed servers,
- more overall redundancy.
For these reasons numerous organisations have offered to
host additional servers operated by the RIPE NCC. So far
this has not been considered because the number of unique IP
addresses at which the service can be provided is exhausted
by currently assigned servers.
2. Scope of this Memo
This memo proposes to deploy multiple servers providing
k.root-servers.net name service across the RIPE region, each
using the same IP address. This is commonly called 'any-
casting'. A detailed description of one implementation can
be found in RFC3258. The intention of this memo is to
establish the principles of this, inventarise the major
issues and request comments from the RIPE community and
other interested parties. An initial inventory of detailed
issues is provided as an appendix.
3. Proposal
Simply put the RIPE NCC will provide K-root name service at
multiple locations dispersed over the Internet topology but
at the same IP address. No DNS client/resolver changes are
necessary. The service will appear exactly the same for the
users. Normal Internet routing will distribute the traffic
among the different instances of K-root.
This will be implemented by installing multiple copies of
the current server sets at different points and announcing
the current prefix 193.0.14/24 from these points.
The main challenge with this set-up is to ensure consis-
tency:
operation -
All servers will be operated in a consistent way by the
RIPE NCC. They will have appropriate out-of-band
access path to ensure that the operations centre can
access them.
monitoring -
The availability and responses will be monitored by
dedicated monitoring systems installed at multiple
locations. Also the BGP propagation of the prefix
193.0.14/24 will be monitored constantly by the exist-
ing remote route collectors. [http://www.ripe.net/ris]
Users will be able to identify the particular instance
they are using by published methods using DNS queries.
[draft-ietf-dnsop-serverid]
correctness -
The correctness and authenticity of the root zone data
will eventually be guaranteed using DNSSEC. Until this
can be deployed the current method will need to be
employed: ISPs will need to closely monitor where they
route traffic to 193.0.14/24 and from where they accept
traffic from that address. The RIPE NCC will publish
and maintain a list with the locations of the k-root
instances, the BGP autonomous system numbers of their
immediate neighbors and any other information that can
help ISPs and others to ensure that they reach an
authentic instance of K-root. This list will be main-
tained until appropriate routing security technology is
widely deployed.
The RIPE NCC and K-root itself are well suited for this mode
of operation. IANA asked the RIPE NCC to operate K-root,
the geographic and topological location of K-root was not
specified in any way other than "somewhere in the RIPE
region". The RIPE NCC was chosen because it is neutral and
professional but above all directly accountable to RIPE and
its membership.
The location at the LINX was subsequently chosen based on
evaluation of the Internet topology in the region and a rec-
ommendation by the RIPE DNS working group. Distributing K-
root over a number of places is a natural continuation of
this policy.
In addition to operating K-root at a remote location the
RIPE NCC has considerable experience in operating dis-
tributed services. The Test Traffic Measurements Service
operates more than 80 machines all over the world to collect
performance measurements. Some of these can be used to mon-
itor the DNS service of K-root as well. The Routing Infor-
mation Service operates 9 remote route collectors at
exchange points all over the world to collect BGP routing
information. These route collectors will be used to monitor
the routing of 193.0.14/24.
At any point in time there is a trade-off between the added
benefit of adding more servers and the difficulty of operat-
ing them consistently. The optimal number of servers
depends on a large number of constantly changing factors.
It needs to be evaluated continuously as things progress.
4. Operational & Funding Models
For the purpose of stability and for gaining experience all
instances of K-root will be operated by the RIPE NCC. This
ensures smooth transitions, consistency and correctness of
root zone data.
After the initial deployment there are a number of possible
operational and funding models.
4.1. Traditional
Traditionally K-root operations have been part of general
RIPE NCC activities and thus have been collectively funded
by the RIPE NCC membership. This is an appropriate funding
model as all members benefit from stable root name service.
It is also easy to administer. Difficulties may arise when
the number of locations is such that the operational costs
increase very significantly. Another important drawback of
this model is that the number of additional sites will be
limited by available funds and the sites will have to be
determined by a selection procedure based on criteria
including
- position in Internet topology,
- position relative to existing K-root instances,
- local operations support,
- operational requirements [rfc2870],
- commitment to fund operations at a later stage.
4.2. Location Fees
The drawbacks of the traditional model can be largely over-
come by charging the organisations hosting K-root instances
a fee that covers the operational costs. This obviously
scales better and requires less of a beauty contest, because
the funds available will more closely match the operational
costs. It is quite possible that the initial demand will be
higher than the operational capabilities of the RIPE NCC.
Also it should be observed that in funding and some other
aspects this is exactly the opposite of the traditional
model: In the traditional model the RIPE NCC pays facilities
management fees to the hosts whereas in this model the hosts
pay.
Transition should be planned carefully.
4.3. Operated and Funded Decentrally
In this model anyone who wishes would be able to operate a
K-root instance. This model has such serious problems with
guaranteeing stability and consistency that it cannot be
implemented today or in the near future. The minimum
requirement for this operational mode is a zone signing
mechanism that ensures consistency and authenticity of root
zone data. Implementing this also requires a changed model
of service responsibility as it is obviously impossible to
hold any one entity responsible for the service. While this
may ultimately scale the best, it is extremely premature at
this point.
We propose to continue with the traditional model for now
and explore other models while gaining operational experi-
ence. The associated selection procedures will be executed
by the RIPE NCC and guided by the relevant requirements RFCs
and the RIPE DNS working group.
5. Implementation Plan
5.1. Initial BGP change
The routing announcements of the current server prefix
193.0.14/24 will change from AS5459 (LINX) to the dedicated
new K-root autonomous system number AS25152.
ISPs need to be aware of this and adapt their routing fil-
ters accordingly. It is recommended that ISPs who do not
already do so, take precautions, safeguaring that they
receive this prefix from an authentic K-root via a trusted
path and that they route traffic to it via trusted paths as
far as possible. At the same time an initial set of BGP and
DNS service monitors will be deployed.
5.2. Move the Cold Standby to Service
The current cold standby server at the RIPE NCC will be
activated as a regular server. AS25152 will be announced
also by the RIPE NCC at the AMS-IX. As the server is
already available and configured this can be done fairly
rapidly. The distribution of the load, BGP routing informa-
tion and other operational data will be gathered and evalu-
ated. ISPs will have the opportunity to test this set-up
and provide feedback. In case of problems the RIPE NCC
instance of K-root will be deactivated quickly, returning to
the previous service level.
5.3. Implement Further Instances
While monitoring continuously a number of further instances
of K-root will be deployed. Currently we expect this to be
about 5 additional instances. This number is limited by
operational and monitoring capacity. It is important not to
deploy more instances than can safely be operated and moni-
tored. Especially the capacity to detect and correct prob-
lems in this distributed set-up needs to be carefully moni-
tored.
5.4. Spreading Further
Planning further than this is currently difficult because of
lack of experience with distributed K-root operations and
possible funding models.
Acknowledgements
The author would like to thank Joao Silva Damas for comments
on an earlier draft as well as Andrei Robachevsky and Henk
Uijterwaal who provided comments on recent drafts.
Appendix A - Detailed Issues
Using a router or having a server speak BGP?
Withdrawing BGP announcements based on service availability?
Distributed service monitoring: Using current RIPE NCC oper-
ated machines all over the world is an easy option. Maybe
distributing automatic monitoring software to be run by vol-
unteers is another. What is essentially needed is to try a
small number of queries periodically including the query
identifying the instance of the server. Then transmitting
the results back to a (set of) collection point(s).
Distributed BGP Monitoring: The RIS can be used for this.
Coverage should be sufficient.
Information Campaign: What is needed to reach all ISPs that
need to know? How long a lead time do they need for the var-
ious stages of the deployment?
2
1
This report has been generated at Fri Nov 1 21:44:58 2002 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
25-10-02 114752 82664
26-10-02 115193 82582
26-10-02 115135 82541
28-10-02 115001 82653
29-10-02 115335 82760
30-10-02 115374 82790
31-10-02 115340 82890
01-11-02 115442 82880
AS Summary
13957 Number of ASes in routing system
5465 Number of ASes announcing only one prefix
1748 Largest number of prefixes announced by an AS
AS701 : ALTERNET-AS UUNET Technologies, Inc.
73146368 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 01Nov02 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 115457 82891 32566 28.2% All ASes
AS3908 1076 564 512 47.6% SUPERNETASBLK SuperNet, Inc.
AS701 1748 1265 483 27.6% ALTERNET-AS UUNET
Technologies, Inc.
AS7843 782 330 452 57.8% ADELPHIA-AS Adelphia Corp.
AS2828 487 112 375 77.0% XO-AS15 XO Communications
AS6197 457 100 357 78.1% BATI-ATL BellSouth Network
Solutions, Inc
AS7018 1344 993 351 26.1% ATT-INTERNET4 AT&T WorldNet
Services
AS4323 516 181 335 64.9% TW-COMM Time Warner
Communications, Inc.
AS18566 337 4 333 98.8% COVAD Covad Communications
AS1221 1196 873 323 27.0% ASN-TELSTRA Telstra Pty Ltd
AS209 629 336 293 46.6% ASN-QWEST Qwest
AS7046 585 299 286 48.9% UUNET-CUSTOMER UUNET
Technologies, Inc.
AS6347 354 82 272 76.8% DIAMOND SAVVIS Communications
Corporation
AS4355 388 127 261 67.3% ERMS-EARTHLNK EARTHLINK, INC
AS4151 330 89 241 73.0% USDA-1 USDA
AS705 441 202 239 54.2% ASN-ALTERNET UUNET
Technologies, Inc.
AS1239 887 662 225 25.4% SPRINTLINK Sprint
AS6198 403 180 223 55.3% BATI-MIA BellSouth Network
Solutions, Inc
AS852 689 467 222 32.2% ASN852 Telus Advanced
Communications
AS1 655 437 218 33.3% GNTY-1 Genuity
AS4814 233 15 218 93.6% CHINANET-BEIJING-AP China
Telecom (Group)Beijing
Telecom CompanyBeijing China
AS7132 281 71 210 74.7% SBIS-AS Southwestern Bell
Internet Services
AS6140 263 65 198 75.3% IMPSAT-USA ImpSat USA, Inc.
AS17557 320 122 198 61.9% PKTELECOM-AS-AP APNIC ASN
block
AS22927 216 20 196 90.7% AR-TEAR2-LACNIC TELEFONICA DE
ARGENTINA
AS6595 248 57 191 77.0% DODDSEUR DoD Education
Activity Network Assistance
Center
AS17676 226 35 191 84.5% GIGAINFRA APNIC ASN block
AS690 517 331 186 36.0% MERIT-AS-27 Merit Network Inc.
AS4134 296 114 182 61.5% ERX-CHINALINK Data
Communications Bureau
AS2048 265 88 177 66.8% LANET-1 State of Louisiana
AS2548 403 244 159 39.5% ICIX-MD-AS Business Internet,
Inc.
Total 16572 8465 8107 48.9% Top 30 total
Please see http://www.cidr-report.org for the full report
------------------------------------
Copies of this report are mailed to:
nanog(a)merit.edu
eof-list(a)ripe.net
apops(a)lists.apnic.net
routing-wg(a)ripe.net
afnog(a)afnog.org
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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 01 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116941
Prefixes after maximum aggregation: 74969
Unique aggregates announced to Internet: 55913
Total ASes present in the Internet Routing Table: 14003
Origin-only ASes present in the Internet Routing Table: 12144
Origin ASes announcing only one prefix: 5459
Transit ASes present in the Internet Routing Table: 1859
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
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: 35
Number of addresses announced to Internet: 1182432648
Equivalent to 70 /8s, 122 /16s and 125 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48987
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19110
Total APNIC prefixes after maximum aggregation: 11485
Prefixes being announced from the APNIC address blocks: 17593
Unique aggregates announced from the APNIC address blocks: 11202
APNIC Region origin ASes present in the Internet Routing Table: 1628
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 99956160
Equivalent to 5 /8s, 245 /16s and 53 /24s
Percentage of available APNIC address space announced: 65.7
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73227
Total ARIN prefixes after maximum aggregation: 46440
Prefixes being announced from the ARIN address blocks: 51538
Unique aggregates announced from the ARIN address blocks: 15445
ARIN Region origin ASes present in the Internet Routing Table: 7868
ARIN Region origin ASes announcing only one prefix: 2616
ARIN Region transit ASes present in the Internet Routing Table: 741
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182350304
Equivalent to 10 /8s, 222 /16s and 113 /24s
Percentage of available ARIN address space announced: 67.9
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
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19747
Total RIPE prefixes after maximum aggregation: 14961
Prefixes being announced from the RIPE address blocks: 16441
Unique aggregates announced from the RIPE address blocks: 11016
RIPE Region origin ASes present in the Internet Routing Table: 4130
RIPE Region origin ASes announcing only one prefix: 2245
RIPE Region transit ASes present in the Internet Routing Table: 760
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 118798048
Equivalent to 7 /8s, 20 /16s and 182 /24s
Percentage of available RIPE address space announced: 78.7
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, 24576 - 25599
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4851
Total LACNIC prefixes after maximum aggregation: 2083
Prefixes being announced from the LACNIC address blocks: 4215
Unique aggregates announced from the LACNIC address blocks: 2658
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11637760
Equivalent to 0 /8s, 177 /16s and 148 /24s
Percentage of available LACNIC address space announced: 69.4
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1189 1169 866 Telstra Pty Ltd
703 396 367 314 UUNET
2907 350 1751 330 SINET Japan
2764 335 356 307 connect.com.au pty ltd
17557 320 23 120 Pakistan Telecom
4134 296 2287 98 Data Communications Bureau
7474 295 275 201 Optus Communications Pty Ltd
4755 279 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 233 79 15 China Telecom (Group)
17676 226 3538 32 XTAGE CORPORATION
9443 185 57 73 Primus Telecommunications
9583 164 32 6 Satyam Infoway Ltd.,
4515 139 102 77 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
4716 130 738 124 TTnet
7657 129 24 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 112 1044 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1778 9156 1263 UUNET Technologies, Inc.
7018 1342 7185 938 AT&T
3908 1089 1669 513 Supernet, Inc.
1239 890 3170 662 Sprint
7843 783 374 311 Adelphia Corp.
852 688 1163 466 Telus Advanced Communications
1 665 8106 439 GENUITY
209 636 2049 335 Qwest
7046 587 876 292 UUNET Technologies, Inc.
690 517 75 324 Merit Network
4323 516 439 164 Time Warner Communications, I
2828 498 610 120 XO Communications
705 443 134 203 UUNET Technologies, Inc.
6197 439 233 200 BellSouth Network Solutions,
3549 413 728 297 Global Crossing
2548 403 1115 244 Business Internet, Inc.
6198 400 182 197 BellSouth Network Solutions,
4355 388 306 109 EarthLink, Inc.
19029 388 127 30 New Edge Networks
2914 366 2022 359 Verio, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 838 2367 692 UUNET - Commercial IP service
3301 377 1163 334 TeliaNet Sweden
3215 308 789 172 France Telecom Transpac
3320 245 1964 222 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 210 783 175 Sonera Solution Autonomous Sy
1257 209 415 204 SWIPnet Swedish IP Network
5400 196 84 110 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 159 41 146 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
3246 120 373 116 Song Networks
8220 114 169 106 COLT Internet - International
3269 107 721 63 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
5511 98 192 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 254 114 58 ImpSat USA, Inc.
8151 212 346 111 UniNet S.A. de C.V.
7303 183 28 52 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 150 159 107 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 99 6 30 TVCABLE BOGOTA
11992 80 8 32 Integrated Systems
11340 78 2 29 Red Universitaria Nacional
15311 75 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
7984 64 27 41 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
8065 61 6 16 Empresas Publicas de Medellin
15034 60 5 34 TIBA SA
11664 55 5 11 Keytech SA
6535 54 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1089 576 Supernet, Inc.
7843 783 472 Adelphia Corp.
7018 1342 404 AT&T
2828 498 378 XO Communications
19029 388 358 New Edge Networks
4323 516 352 Time Warner Communications, I
18566 337 333 Covad Communications
1221 1189 323 Telstra Pty Ltd
4151 330 314 USDA
1580 319 306 ANOSCEUR
209 636 301 Qwest
7046 587 295 UUNET Technologies, Inc.
4355 388 279 EarthLink, Inc.
6347 355 279 SAVVIS Communications Corpora
376 344 242 Reseau Interordinateurs Scien
705 443 240 UUNET Technologies, Inc.
6197 439 239 BellSouth Network Solutions,
1239 890 228 Sprint
1 665 226 GENUITY
852 688 222 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:240 /15:428 /16:7314 /17:1510 /18:2749
/19:7892 /20:7503 /21:5370 /22:8232 /23:9995 /24:64809
/25:172 /26:190 /27:109 /28:80 /29:51 /30:91
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 641 1089 Supernet, Inc.
7843 593 783 Adelphia Corp.
702 509 838 UUNET - Commercial IP service
701 495 1778 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 426 1342 AT&T
2828 382 498 XO Communications
19029 354 388 New Edge Networks
6197 332 439 BellSouth Network Solutions,
18566 332 337 Covad Communications
209 316 636 Qwest
6198 316 400 BellSouth Network Solutions,
1580 305 319 ANOSCEUR
1239 274 890 Sprint
7046 273 587 UUNET Technologies, Inc.
3215 233 308 France Telecom Transpac
11492 225 230 Cable One
3301 223 377 TeliaNet Sweden
4355 219 388 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:578 13:10 15:4 17:2 20:5
24:901 25:1 32:43 38:26 40:11 44:1
55:1 57:15 61:368 62:253 63:1915 64:1382
65:1638 66:1213 67:123 68:200 69:16 80:289
81:62 128:128 129:107 130:21 131:63 132:9
133:2 134:135 135:7 136:410 137:108 138:217
139:78 140:157 141:86 142:81 143:46 144:147
145:16 146:251 147:226 148:252 149:77 150:41
151:88 152:295 153:36 154:8 155:106 156:103
157:106 158:78 159:150 160:20 161:74 162:130
163:84 164:93 165:133 166:94 167:306 168:305
169:59 170:228 171:6 192:5427 193:2383 194:2005
195:836 196:438 198:3617 199:3085 200:2565 202:3534
203:4859 204:3244 205:2125 206:2359 207:2469 208:2564
209:2738 210:616 211:279 212:864 213:771 214:10
215:19 216:3216 217:506 218:48 219:3
End of report
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