This report has been generated at Fri Sep 9 21:12:28 2011 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 02-09-11 373096 219901 03-09-11 373636 219796 04-09-11 373666 219877 05-09-11 373566 219844 06-09-11 373748 219894 07-09-11 373965 219992 08-09-11 373797 219481 09-09-11 373405 220098 AS Summary 38831 Number of ASes in routing system 16392 Number of ASes announcing only one prefix 3564 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 108360672 Largest address span announced by an AS (/32s) AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street 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'). --- 09Sep11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 374093 219958 154135 41.2% All ASes AS6389 3564 229 3335 93.6% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4766 2508 974 1534 61.2% KIXS-AS-KR Korea Telecom AS18566 1912 378 1534 80.2% COVAD - Covad Communications Co. AS22773 1451 108 1343 92.6% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS4755 1547 228 1319 85.3% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS4323 1627 397 1230 75.6% TWTC - tw telecom holdings, inc. AS10620 1661 591 1070 64.4% Telmex Colombia S.A. AS1785 1825 778 1047 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS19262 1394 400 994 71.3% VZGNI-TRANSIT - Verizon Online LLC AS7552 1415 431 984 69.5% VIETEL-AS-AP Vietel Corporation AS28573 1302 344 958 73.6% NET Servicos de Comunicao S.A. AS18101 950 144 806 84.8% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS24560 1177 386 791 67.2% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS8151 1411 659 752 53.3% Uninet S.A. de C.V. AS4808 1077 339 738 68.5% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS7303 1051 316 735 69.9% Telecom Argentina S.A. AS7545 1581 860 721 45.6% TPG-INTERNET-AP TPG Internet Pty Ltd AS3356 1103 449 654 59.3% LEVEL3 Level 3 Communications AS30036 1327 692 635 47.9% MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp AS3549 1080 449 631 58.4% GBLX Global Crossing Ltd. AS14420 715 92 623 87.1% CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP AS20115 1591 971 620 39.0% CHARTER-NET-HKY-NC - Charter Communications AS22561 973 365 608 62.5% DIGITAL-TELEPORT - Digital Teleport Inc. AS17676 675 70 605 89.6% GIGAINFRA Softbank BB Corp. AS17974 1985 1400 585 29.5% TELKOMNET-AS2-AP PT Telekomunikasi Indonesia AS4804 660 87 573 86.8% MPX-AS Microplex PTY LTD AS22047 579 31 548 94.6% VTR BANDA ANCHA S.A. AS4780 759 230 529 69.7% SEEDNET Digital United Inc. AS7011 1183 656 527 44.5% FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. AS15475 512 8 504 98.4% NOL Total 40595 13062 27533 67.8% Top 30 total Possible Bogus Routes 10.86.64.32/30 AS65530 -Private Use AS- 10.86.64.36/30 AS65530 -Private Use AS- 10.86.65.32/30 AS65530 -Private Use AS- 10.86.65.36/30 AS65530 -Private Use AS- 10.255.255.0/30 AS65530 -Private Use AS- 10.255.255.4/30 AS65530 -Private Use AS- 10.255.255.8/30 AS65530 -Private Use AS- 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 46.18.104.0/21 AS3.746 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation 66.171.32.0/20 AS705 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.6.80.0/24 AS13442 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 76.77.32.0/19 AS2828 XO-AS15 - XO Communications 80.88.10.0/24 AS33774 DJAWEB 100.100.100.0/24 AS3549 GBLX Global Crossing Ltd. 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 116.206.72.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 116.206.85.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 116.206.103.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc. 172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 181.82.15.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.16.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.17.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 181.82.18.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net 190.104.32.0/21 AS27882 Telefónica Celular de Bolivia S.A. 193.111.87.0/24 AS24812 200.6.93.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.6.94.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.6.95.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.23.84.0/24 AS8151 Uninet S.A. de C.V. 200.24.73.0/24 AS26061 Equant Colombia 200.24.76.0/24 AS7195 Telecorp Colombia S.A. 200.24.78.0/26 AS3549 GBLX Global Crossing Ltd. 200.24.78.64/26 AS3549 GBLX Global Crossing Ltd. 200.33.40.0/24 AS11172 Alestra, S. de R.L. de C.V. 200.34.0.0/20 AS6342 Instituto Tecnológico y de Estudios Superiores de Monterrey 200.53.0.0/19 AS13878 Diveo do Brasil Telecomunicacoes Ltda 202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000 202.9.55.0/24 AS2764 AAPT AAPT Limited 202.9.57.0/24 AS2764 AAPT AAPT Limited 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.74.232.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.74.233.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.160.152.0/22 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited 202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.142.219.0/24 AS45149 203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX Orange Business Services (formerly Equant) AS for BENELUX 205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc. 206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company 207.174.131.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.132.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.152.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.154.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.155.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc. 216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog@nanog.org eof-list@ripe.net apops@apops.net routing-wg@ripe.net afnog@afnog.org
I thought AS-plain notation was the standard for 4-byte ASN's? Also to cidr report folks, in the web version, clicking on the ASN for these takes you to the page for AS3 (MIT) 46.18.104.0/21 AS3.746 195.54.52.0/23 AS3.523 195.54.52.0/24 AS3.523 195.54.53.0/24 AS3.523 route-views>sh ip bgp 195.54.52.0 BGP routing table entry for 195.54.52.0/24, version 218523 Paths: (34 available, best #34, table Default-IP-Routing-Table) Not advertised to any peer 3257 3356 3255 3.523 3.523 3.523 89.149.178.10 from 89.149.178.10 (213.200.87.91) Origin IGP, metric 10, localpref 100, valid, external Community: 3257:8091 3257:30042 3257:50001 3257:54900 3257:54901 -----Original Message----- From: cidr-report@potaroo.net [mailto:cidr-report@potaroo.net] Sent: Friday, September 09, 2011 6:00 PM To: cidr-report@potaroo.net Cc: apops@apops.net; afnog@afnog.org; nanog@nanog.org; eof-list@ripe.net; routing-wg@ripe.net Subject: The Cidr Report This report has been generated at Fri Sep 9 21:12:28 2011 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 02-09-11 373096 219901 03-09-11 373636 219796 04-09-11 373666 219877 05-09-11 373566 219844 06-09-11 373748 219894 07-09-11 373965 219992 08-09-11 373797 219481 09-09-11 373405 220098 AS Summary 38831 Number of ASes in routing system 16392 Number of ASes announcing only one prefix 3564 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 108360672 Largest address span announced by an AS (/32s) AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street 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'). --- 09Sep11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 374093 219958 154135 41.2% All ASes AS6389 3564 229 3335 93.6% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4766 2508 974 1534 61.2% KIXS-AS-KR Korea Telecom AS18566 1912 378 1534 80.2% COVAD - Covad Communications Co. AS22773 1451 108 1343 92.6% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS4755 1547 228 1319 85.3% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS4323 1627 397 1230 75.6% TWTC - tw telecom holdings, inc. AS10620 1661 591 1070 64.4% Telmex Colombia S.A. AS1785 1825 778 1047 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS19262 1394 400 994 71.3% VZGNI-TRANSIT - Verizon Online LLC AS7552 1415 431 984 69.5% VIETEL-AS-AP Vietel Corporation AS28573 1302 344 958 73.6% NET Servicos de Comunicao S.A. AS18101 950 144 806 84.8% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS24560 1177 386 791 67.2% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS8151 1411 659 752 53.3% Uninet S.A. de C.V. AS4808 1077 339 738 68.5% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS7303 1051 316 735 69.9% Telecom Argentina S.A. AS7545 1581 860 721 45.6% TPG-INTERNET-AP TPG Internet Pty Ltd AS3356 1103 449 654 59.3% LEVEL3 Level 3 Communications AS30036 1327 692 635 47.9% MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp AS3549 1080 449 631 58.4% GBLX Global Crossing Ltd. AS14420 715 92 623 87.1% CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP AS20115 1591 971 620 39.0% CHARTER-NET-HKY-NC - Charter Communications AS22561 973 365 608 62.5% DIGITAL-TELEPORT - Digital Teleport Inc. AS17676 675 70 605 89.6% GIGAINFRA Softbank BB Corp. AS17974 1985 1400 585 29.5% TELKOMNET-AS2-AP PT Telekomunikasi Indonesia AS4804 660 87 573 86.8% MPX-AS Microplex PTY LTD AS22047 579 31 548 94.6% VTR BANDA ANCHA S.A. AS4780 759 230 529 69.7% SEEDNET Digital United Inc. AS7011 1183 656 527 44.5% FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. AS15475 512 8 504 98.4% NOL Total 40595 13062 27533 67.8% Top 30 total Possible Bogus Routes 10.86.64.32/30 AS65530 -Private Use AS- 10.86.64.36/30 AS65530 -Private Use AS- 10.86.65.32/30 AS65530 -Private Use AS- 10.86.65.36/30 AS65530 -Private Use AS- 10.255.255.0/30 AS65530 -Private Use AS- 10.255.255.4/30 AS65530 -Private Use AS- 10.255.255.8/30 AS65530 -Private Use AS- 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 46.18.104.0/21 AS3.746 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation 66.171.32.0/20 AS705 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.6.80.0/24 AS13442 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 76.77.32.0/19 AS2828 XO-AS15 - XO Communications 80.88.10.0/24 AS33774 DJAWEB 100.100.100.0/24 AS3549 GBLX Global Crossing Ltd. 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 116.206.72.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 116.206.85.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 116.206.103.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc. 172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 181.82.15.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.16.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul 181.82.17.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 181.82.18.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education 190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net 190.104.32.0/21 AS27882 Telefónica Celular de Bolivia S.A. 193.111.87.0/24 AS24812 200.6.93.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.6.94.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.6.95.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.23.84.0/24 AS8151 Uninet S.A. de C.V. 200.24.73.0/24 AS26061 Equant Colombia 200.24.76.0/24 AS7195 Telecorp Colombia S.A. 200.24.78.0/26 AS3549 GBLX Global Crossing Ltd. 200.24.78.64/26 AS3549 GBLX Global Crossing Ltd. 200.33.40.0/24 AS11172 Alestra, S. de R.L. de C.V. 200.34.0.0/20 AS6342 Instituto Tecnológico y de Estudios Superiores de Monterrey 200.53.0.0/19 AS13878 Diveo do Brasil Telecomunicacoes Ltda 202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000 202.9.55.0/24 AS2764 AAPT AAPT Limited 202.9.57.0/24 AS2764 AAPT AAPT Limited 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.74.232.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.74.233.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.160.152.0/22 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited 202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited 203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.142.219.0/24 AS45149 203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX Orange Business Services (formerly Equant) AS for BENELUX 205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc. 206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc. 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company 207.174.131.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.132.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.152.0/23 AS26116 INDRA - Indra's Net Inc. 207.174.154.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.155.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc. 216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog@nanog.org eof-list@ripe.net apops@apops.net routing-wg@ripe.net afnog@afnog.org
On Friday, September 16, 2011 07:51:04 AM Schiller, Heather A wrote:
I thought AS-plain notation was the standard for 4-byte ASN's?
as-plain is not the "standard" per se. Think of it more as the "preferred" option within the industry. o All major vendors support it, so there's no need to convert to as-dot when you upgrade your router software to support 4-byte ASN's. o as-plain doesn't break your AS_PATH regular expressions, which is very useful. o as-plain is a known representation format among operators, and 4-byte ASN's continuing this tradition keeps the network stable. as-dot notation looks really Cool & Sexy (tm), but is cumbersome for your AS_PATH regular expressions. It doesn't make things impossible, just, well, cumbersome :-). Hope this helps. Cheers, Mark.
On Sat, Sep 17, 2011 at 02:11:24AM +0800, Mark Tinka wrote:
I thought AS-plain notation was the standard for 4-byte ASN's?
as-plain is not the "standard" per se.
RFC5396 on as-plain is on track becoming one. Best regards, Daniel -- CLUE-RIPE -- Jabber: dr@cluenet.de -- dr@IRCnet -- PGP: 0xA85C8AA0
On Saturday, September 17, 2011 03:16:01 AM Daniel Roesen wrote:
RFC5396 on as-plain is on track becoming one.
Indeed. I suppose it will be interesting to see how the vendors respond to this. Would they retract support for as-dot, as it's been shipping for a while now? Cheers, Mark.
On 16/09/2011 00:51, Schiller, Heather A wrote:
I thought AS-plain notation was the standard for 4-byte ASN's?
Wasn't there an RFC written about this by some australian bloke? I'd say that whoever maintains the CIDR report these days should really take a couple of minutes to clue themselves in about asplain syntax. Nick
Strangely, both the RFC (5396) and the CIDR report appear to be written by the same guy...Geoff. btw, am i the only one who finds it easier to remember asdot formatted ASNs? - Tassos Nick Hilliard wrote on 16/9/2011 23:06:
I thought AS-plain notation was the standard for 4-byte ASN's? Wasn't there an RFC written about this by some australian bloke? I'd say
On 16/09/2011 00:51, Schiller, Heather A wrote: that whoever maintains the CIDR report these days should really take a couple of minutes to clue themselves in about asplain syntax.
Nick
On Saturday, September 17, 2011 04:49:17 AM Tassos Chatzithomaoglou wrote:
btw, am i the only one who finds it easier to remember asdot formatted ASNs?
They're easier to remember, but if you operate an ASN for a reasonable period of time, it's okay to assume that you will remember it, whether it's as-plain or otherwise. The same would hold true for your favorite upstreams, peers, customers and role model ISP's :-). Cheers, Mark.
I say we all start using octal two's complement for extended ASNs. (note to self: don't post to NANOG after a night out with a vendor.) -- Joe Hamelin, W7COM, Tulalip, WA, 360-474-7474 On Fri, Sep 16, 2011 at 9:39 PM, Mark Tinka <mtinka@globaltransit.net>wrote:
On Saturday, September 17, 2011 04:49:17 AM Tassos Chatzithomaoglou wrote:
btw, am i the only one who finds it easier to remember asdot formatted ASNs?
They're easier to remember, but if you operate an ASN for a reasonable period of time, it's okay to assume that you will remember it, whether it's as-plain or otherwise.
The same would hold true for your favorite upstreams, peers, customers and role model ISP's :-).
Cheers,
Mark.
participants (7)
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cidr-report＠potaroo.net -
Daniel Roesen -
Joe Hamelin -
Mark Tinka -
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Schiller, Heather A -
Tassos Chatzithomaoglou