This report has been generated at Fri Jun 4 21:43:44 2004 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 28-05-04 136044 96273 29-05-04 137423 96268 30-05-04 137948 96174 31-05-04 137863 96101 01-06-04 137984 96125 02-06-04 137818 96104 03-06-04 137774 96139 04-06-04 137884 95196 AS Summary 17255 Number of ASes in routing system 6964 Number of ASes announcing only one prefix 1420 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 73559296 Largest address span announced by an AS (/32s) AS568 : DISOUN 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'). --- 04Jun04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 136767 95172 41595 30.4% All ASes AS6347 940 160 780 83.0% SAVV SAVVIS Communications Corporation AS4134 738 158 580 78.6% CHINANET-BACKBONE No.31,Jin-rong Street AS18566 708 169 539 76.1% CVAD Covad Communications AS4323 731 204 527 72.1% TWTC Time Warner Telecom AS7018 1420 985 435 30.6% ATTW AT&T WorldNet Services AS6197 709 321 388 54.7% BNS-14 BellSouth Network Solutions, Inc AS701 1297 932 365 28.1% UU UUNET Technologies, Inc. AS9583 464 105 359 77.4% SATYAMNET-AS Satyam Infoway Ltd., AS7843 499 142 357 71.5% ADELPH-13 Adelphia Corp. AS22909 390 33 357 91.5% CMCS Comcast Cable Communications, Inc. AS6198 566 232 334 59.0% BNS-14 BellSouth Network Solutions, Inc AS22773 378 58 320 84.7% CXAB Cox Communications Inc. Atlanta AS27364 360 44 316 87.8% ARMC Armstrong Cable Services AS1239 941 639 302 32.1% SPRN Sprint AS11172 351 56 295 84.0% Servicios Alestra S.A de C.V AS17676 339 50 289 85.3% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 316 33 283 89.6% CNCNET-CN China Netcom Corp. AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS6140 390 129 261 66.9% IMPSA ImpSat AS6478 305 48 257 84.3% ATTW AT&T WorldNet Services AS1221 852 617 235 27.6% ASN-TELSTRA Telstra Pty Ltd AS209 737 503 234 31.8% QWEST-4 Qwest AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS14654 230 5 225 97.8% WAYPOR-3 Wayport AS3356 886 673 213 24.0% LEVEL3 Level 3 Communications AS4766 476 264 212 44.5% KIX Korea Internet Exchange for "96 World Internet Exposition AS9443 359 156 203 56.5% INTERNETPRIMUS-AS-AP Primus Telecommunications AS2386 430 233 197 45.8% ADCS-1 AT&T Data Communications Services AS5668 380 196 184 48.4% CIH-12 CenturyTel Internet Holdings, Inc. AS6327 208 28 180 86.5% SHAWC-2 Shaw Communications Inc. Total 17024 7288 9736 57.2% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.12.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 132.0.0.0/10 AS568 DISOUN DISO-UNRRA 137.0.0.0/13 AS568 DISOUN DISO-UNRRA 138.136.0.0/13 AS568 DISOUN DISO-UNRRA 158.0.0.0/13 AS568 DISOUN DISO-UNRRA 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 AS702 MCI EMEA 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.136.71.0/24 AS719 LANLINK Elisa Oyj 192.136.79.0/24 AS719 LANLINK Elisa Oyj 192.153.144.0/21 AS568 DISOUN DISO-UNRRA 192.172.0.0/19 AS568 DISOUN DISO-UNRRA 192.188.208.0/20 AS568 DISOUN DISO-UNRRA 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS568 DISOUN DISO-UNRRA 198.97.80.0/20 AS568 DISOUN DISO-UNRRA 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.192.0/20 AS568 DISOUN DISO-UNRRA 198.97.240.0/20 AS568 DISOUN DISO-UNRRA 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS568 DISOUN DISO-UNRRA 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS568 DISOUN DISO-UNRRA 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.84.0.0/16 AS701 UU UUNET Technologies, Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS568 DISOUN DISO-UNRRA 199.114.128.0/18 AS568 DISOUN DISO-UNRRA 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS568 DISOUN DISO-UNRRA 199.123.0.0/18 AS568 DISOUN DISO-UNRRA 199.123.16.0/20 AS568 DISOUN DISO-UNRRA 199.123.80.0/21 AS568 DISOUN DISO-UNRRA 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.2.64.0/20 AS9729 IS-AP iAdvantage Limited 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.0.0/20 AS4658 NETFRONT-AS NETFRONT I.T. LIMITED (HONG KONG) 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.86.142.0/24 AS30362 HAWAI-1 Hawaii-Pacific Teleport 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.123.96.0/20 AS9288 COMCEN-AS-AP Com-Cen Pty Ltd 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.141.160.0/24 AS9237 HUTCHCA-AS BTN Access Limited 202.141.190.0/24 AS10026 ANC Asia Netcom Corporation 202.141.191.0/24 AS4637 REACH Reach Network Border AS 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 204.69.144.0/22 AS5668 CIH-12 CenturyTel Internet Holdings, Inc. 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.41.32.0/19 AS14824 NCC-105 NewSouth Communications Corp. 206.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.169.219.0/24 AS189 GNTY Genuity 209.169.223.0/24 AS189 GNTY Genuity 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL-33 Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.18.224.0/21 AS11458 IMBRIS-1 IMBRIS, INC. 216.18.224.0/22 AS11458 IMBRIS-1 IMBRIS, INC. 216.18.228.0/22 AS11458 IMBRIS-1 IMBRIS, INC. 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.133.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.135.0/24 AS11937 TRXI TRX Inc. 216.145.152.0/24 AS10758 INWAVE INWave Internet, Inc 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog@merit.edu eof-list@ripe.net apops@apops.net routing-wg@ripe.net afnog@afnog.org swinog@swinog.ch
cidr-report@potaroo.net writes:
This report has been generated at Fri Jun 4 21:43:44 2004 AEST. ... Recent Table History Date Prefixes CIDR Agg ... 03-06-04 137774 96139 04-06-04 137884 95196
ok, so in one day we saw the addition of 110 prefixes, but they were aligned such that the size of a properly cidr-aggregated table dropped by 943. this is quite a trick. what does it all mean?
... 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').
and who's doing it?
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 136767 95172 41595 30.4% All ASes
AS6347 940 160 780 83.0% SAVV SAVVIS Communications Corporation
yo, savvis! you're putting 940 routes into the global routing table, and when somebody did "sort -u" on the as-paths, they found that with no change to your transit policies, you could be sending just 160 instead. "help?"
AS22909 390 33 357 91.5% CMCS Comcast Cable Communications, Inc.
yo, comcast!
AS22773 378 58 320 84.7% CXAB Cox Communications Inc. Atlanta AS27364 360 44 316 87.8% ARMC Armstrong Cable Services
yo, cox and armstrong!
AS11172 351 56 295 84.0% Servicios Alestra S.A de C.V AS17676 339 50 289 85.3% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 316 33 283 89.6% CNCNET-CN China Netcom Corp. AS6478 305 48 257 84.3% ATTW AT&T WorldNet Services AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS14654 230 5 225 97.8% WAYPOR-3 Wayport AS6327 208 28 180 86.5% SHAWC-2 Shaw Communications Inc.
yo! yo! yo! (i've only listed those who could reduce their impact on the global routing table by 80% or more... as you all saw, the list *was* longer.) there are any number of unemployed bgp experts haunting this mailing list looking for post-dotbomb work. many of them would accept work as short term consultants to help you folks get down under the 80% level. just ask! -- Paul Vixie
yeah, we(being savvis) are aware. this will all disappear when AS6347 is integrated to AS3561. AS3561 is, for the most part clean, and it will stay that way. AS6347 will drop off the map in the coming months. have patience. ;-) thx, mark Paul Vixie wrote:
cidr-report@potaroo.net writes:
This report has been generated at Fri Jun 4 21:43:44 2004 AEST. ... Recent Table History Date Prefixes CIDR Agg ... 03-06-04 137774 96139 04-06-04 137884 95196
ok, so in one day we saw the addition of 110 prefixes, but they were aligned such that the size of a properly cidr-aggregated table dropped by 943. this is quite a trick. what does it all mean?
... 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').
and who's doing it?
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 136767 95172 41595 30.4% All ASes
AS6347 940 160 780 83.0% SAVV SAVVIS Communications Corporation
yo, savvis! you're putting 940 routes into the global routing table, and when somebody did "sort -u" on the as-paths, they found that with no change to your transit policies, you could be sending just 160 instead. "help?"
AS22909 390 33 357 91.5% CMCS Comcast Cable Communications, Inc.
yo, comcast!
AS22773 378 58 320 84.7% CXAB Cox Communications Inc. Atlanta AS27364 360 44 316 87.8% ARMC Armstrong Cable Services
yo, cox and armstrong!
AS11172 351 56 295 84.0% Servicios Alestra S.A de C.V AS17676 339 50 289 85.3% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 316 33 283 89.6% CNCNET-CN China Netcom Corp. AS6478 305 48 257 84.3% ATTW AT&T WorldNet Services AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS14654 230 5 225 97.8% WAYPOR-3 Wayport AS6327 208 28 180 86.5% SHAWC-2 Shaw Communications Inc.
yo! yo! yo! (i've only listed those who could reduce their impact on the global routing table by 80% or more... as you all saw, the list *was* longer.)
there are any number of unemployed bgp experts haunting this mailing list looking for post-dotbomb work. many of them would accept work as short term consultants to help you folks get down under the 80% level. just ask!
participants (3)
-
cidr-report＠potaroo.net -
Mark Kasten -
Paul Vixie