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BGP Update Report
by cidr-report＠potaroo.net 06 Apr '12

06 Apr '12

BGP Update Report Interval: 29-Mar-12 -to- 05-Apr-12 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS8402 67283 3.7% 33.7 -- CORBINA-AS OJSC "Vimpelcom" 2 - AS10201 52074 2.9% 197.2 -- DWL-AS-IN Dishnet Wireless Limited. Broadband Wireless 3 - AS14374 48402 2.7% 1210.0 -- AGRI-VALLEY - Agri-Valley Services Inc. 4 - AS9829 40535 2.2% 50.7 -- BSNL-NIB National Internet Backbone 5 - AS7843 34206 1.9% 1266.9 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 6 - AS12479 28304 1.6% 43.1 -- UNI2-AS France Telecom Espana SA 7 - AS7029 23655 1.3% 6.7 -- WINDSTREAM - Windstream Communications Inc 8 - AS7552 23336 1.3% 21.4 -- VIETEL-AS-AP Vietel Corporation 9 - AS32528 23234 1.3% 3319.1 -- ABBOTT Abbot Labs 10 - AS26615 21440 1.2% 24.0 -- Tim Celular S.A. 11 - AS2118 19486 1.1% 13.6 -- RELCOM-AS OOO "NPO Relcom" 12 - AS5800 17725 1.0% 57.4 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 13 - AS24560 17518 1.0% 39.2 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 14 - AS5976 16773 0.9% 148.4 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 15 - AS28683 16207 0.9% 274.7 -- BENINTELECOM 16 - AS28573 12874 0.7% 12.1 -- NET Servicos de Comunicao S.A. 17 - AS45899 9521 0.5% 29.1 -- VNPT-AS-VN VNPT Corp 18 - AS594 9181 0.5% 65.1 -- LVLT594-598 - Level 3 Communications, Inc. 19 - AS25620 8895 0.5% 57.4 -- COTAS LTDA. 20 - AS8452 8678 0.5% 8.2 -- TE-AS TE-AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS3563 3832 0.2% 3832.0 -- PILOT-ASN - Pilot Network Services, Inc 2 - AS17408 3365 0.2% 3365.0 -- ABOVE-AS-AP AboveNet Communications Taiwan 3 - AS32528 23234 1.3% 3319.1 -- ABBOTT Abbot Labs 4 - AS7843 34206 1.9% 1266.9 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 5 - AS14374 48402 2.7% 1210.0 -- AGRI-VALLEY - Agri-Valley Services Inc. 6 - AS55665 998 0.1% 998.0 -- STMI-AS-ID PT Sampoerna Telemedia Indonesia 7 - AS22733 910 0.1% 910.0 -- 8 - AS11553 888 0.1% 888.0 -- MANNATECH-AS MANNATECH 9 - AS57767 871 0.1% 871.0 -- RTTC-AS Federal State-owned Enterprise Russian Television and Radio Broadcasting Network 10 - AS44798 808 0.0% 808.0 -- PERVOMAYSK-AS PP "SKS-Pervomaysk" 11 - AS38364 1220 0.1% 610.0 -- CNNIC-LTEL-AP LONGTEL NETWORKS & TECHNOLOGIES LTD. 12 - AS38857 1121 0.1% 560.5 -- ESOFT-TRANSIT-AS-AP e.Soft Technologies Ltd. 13 - AS15825 2193 0.1% 548.2 -- UNSPECIFIED 14 - AS34369 1563 0.1% 521.0 -- SHATELIX SHATEL Internet Exchange 15 - AS27169 490 0.0% 490.0 -- TRIDENTAS - Trident Systems, Inc. 16 - AS52366 952 0.1% 476.0 -- Lunamen S.A. 17 - AS25600 454 0.0% 454.0 -- MATRIKON-1 - Matrikon Inc. 18 - AS37169 887 0.1% 443.5 -- SOLSI 19 - AS33377 866 0.1% 433.0 -- FHLBC - Federal Home Loan Bank of Chicago 20 - AS38455 830 0.1% 415.0 -- IPC-NETWORK-SERVICES-AS-AP IPC Network Services TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 130.36.34.0/24 11607 0.6% AS32528 -- ABBOTT Abbot Labs 2 - 130.36.35.0/24 11607 0.6% AS32528 -- ABBOTT Abbot Labs 3 - 204.234.0.0/17 11054 0.6% AS7029 -- WINDSTREAM - Windstream Communications Inc 4 - 62.36.252.0/22 8750 0.5% AS12479 -- UNI2-AS France Telecom Espana SA 5 - 205.107.121.0/24 7545 0.4% AS5976 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 6 - 122.161.0.0/16 6862 0.3% AS24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 7 - 62.36.249.0/24 6450 0.3% AS12479 -- UNI2-AS France Telecom Espana SA 8 - 62.36.241.0/24 5921 0.3% AS12479 -- UNI2-AS France Telecom Espana SA 9 - 62.36.210.0/24 5674 0.3% AS12479 -- UNI2-AS France Telecom Espana SA 10 - 205.106.248.0/24 5466 0.3% AS5976 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 11 - 23.54.176.0/22 5267 0.3% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 12 - 194.63.9.0/24 5145 0.3% AS1273 -- CW Cable and Wireless Worldwide plc 13 - 184.50.208.0/20 4913 0.2% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 14 - 205.211.136.0/24 4864 0.2% AS6407 -- PRIMUS-AS6407 - Primus Telecommunications Canada Inc. 15 - 173.222.100.0/22 4828 0.2% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 16 - 184.28.206.0/23 4826 0.2% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 17 - 23.54.188.0/22 4718 0.2% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 18 - 23.54.184.0/22 4718 0.2% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 19 - 23.54.180.0/22 4717 0.2% AS7843 -- TWCABLE-BACKBONE - Road Runner HoldCo LLC 20 - 182.64.0.0/16 4495 0.2% AS24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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The Cidr Report
by cidr-report＠potaroo.net 06 Apr '12

06 Apr '12

This report has been generated at Fri Apr 6 21:12:44 2012 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 30-03-12 406585 236412 31-03-12 406736 236071 01-04-12 406429 236409 02-04-12 406722 236897 03-04-12 406676 237014 04-04-12 406639 237399 05-04-12 406957 237397 06-04-12 407232 237558 AS Summary 40739 Number of ASes in routing system 17045 Number of ASes announcing only one prefix 3432 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 111508768 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'). --- 06Apr12 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 407551 237560 169991 41.7% All ASes AS6389 3432 199 3233 94.2% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS7029 3417 1822 1595 46.7% WINDSTREAM - Windstream Communications Inc AS4766 2480 1021 1459 58.8% KIXS-AS-KR Korea Telecom AS22773 1568 120 1448 92.3% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS18566 2092 705 1387 66.3% COVAD - Covad Communications Co. AS28573 1773 493 1280 72.2% NET Servicos de Comunicao S.A. AS2118 1394 141 1253 89.9% RELCOM-AS OOO "NPO Relcom" AS4323 1599 382 1217 76.1% TWTC - tw telecom holdings, inc. AS4755 1574 393 1181 75.0% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS1785 1896 807 1089 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS10620 1795 825 970 54.0% Telmex Colombia S.A. AS7552 1172 219 953 81.3% VIETEL-AS-AP Vietel Corporation AS8402 1720 800 920 53.5% CORBINA-AS OJSC "Vimpelcom" AS7303 1353 439 914 67.6% Telecom Argentina S.A. AS26615 887 32 855 96.4% Tim Celular S.A. AS8151 1483 667 816 55.0% Uninet S.A. de C.V. AS18101 948 163 785 82.8% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS4808 1105 347 758 68.6% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS30036 1461 771 690 47.2% MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp AS17974 1782 1099 683 38.3% TELKOMNET-AS2-AP PT Telekomunikasi Indonesia AS9394 892 210 682 76.5% CRNET CHINA RAILWAY Internet(CRNET) AS3356 1100 462 638 58.0% LEVEL3 Level 3 Communications AS17676 687 75 612 89.1% GIGAINFRA Softbank BB Corp. AS19262 997 402 595 59.7% VZGNI-TRANSIT - Verizon Online LLC AS24560 1021 433 588 57.6% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS22561 996 416 580 58.2% DIGITAL-TELEPORT - Digital Teleport Inc. AS3549 1012 440 572 56.5% GBLX Global Crossing Ltd. AS4804 655 95 560 85.5% MPX-AS Microplex PTY LTD AS22047 584 31 553 94.7% VTR BANDA ANCHA S.A. AS4780 808 257 551 68.2% SEEDNET Digital United Inc. Total 43683 14266 29417 67.3% 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- 14.192.0.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.4.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.8.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.12.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.16.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.20.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.24.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.28.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 27.112.114.0/24 AS23884 PROENNET-AS Proimage Engineering and Communication Co.,Ltd. 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 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 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 66.251.128.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.133.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.134.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.136.0/21 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.140.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.141.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.142.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks 66.251.143.0/24 AS3356 LEVEL3 Level 3 Communications 69.46.224.0/20 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers 69.46.233.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers 69.46.236.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 72.44.16.0/20 AS15054 HAMELTRONICS - Hameltronics, LLC 74.91.48.0/24 AS14208 74.91.49.0/24 AS14208 74.91.50.0/24 AS14208 74.91.51.0/24 AS14208 74.91.52.0/24 AS14208 74.91.53.0/24 AS14208 74.91.54.0/24 AS14208 74.91.55.0/24 AS14208 74.91.56.0/24 AS14208 74.91.57.0/24 AS14208 74.91.58.0/24 AS14208 74.91.59.0/24 AS14208 74.91.60.0/24 AS14208 74.91.61.0/24 AS14208 74.91.62.0/24 AS14208 74.91.63.0/24 AS14208 98.159.96.0/20 AS46975 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas S.A. 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. 172.45.1.0/24 AS3356 LEVEL3 Level 3 Communications 172.45.2.0/24 AS29571 CITelecom-AS 172.45.3.0/24 AS29571 CITelecom-AS 172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 172.223.60.0/22 AS6910 DIALTELECOMRO Dial Telecom S.R.L. 200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC. 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 200.33.40.0/24 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 202.8.106.0/24 AS9530 SHINSEGAE-AS SHINSEGAE I&C Co., Ltd. 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.86.32.0/20 AS18255 BRISBANE-AP Brisbane City Council 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.122.134.0/24 AS38615 202.140.128.0/19 AS9583 SIFY-AS-IN Sify Limited 202.160.152.0/22 AS10113 EFTEL-AS-AP Eftel Limited. 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom 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 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 France Telecom S.A. 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 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. 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 208.91.56.0/21 AS22241 IC2NET - IC2NET 208.91.56.0/24 AS22241 IC2NET - IC2NET 208.91.57.0/24 AS22241 IC2NET - IC2NET 208.91.58.0/24 AS22241 IC2NET - IC2NET 208.91.59.0/24 AS22241 IC2NET - IC2NET 208.91.60.0/24 AS22241 IC2NET - IC2NET 208.91.61.0/24 AS22241 IC2NET - IC2NET 208.91.62.0/24 AS22241 IC2NET - IC2NET 208.91.63.0/24 AS22241 IC2NET - IC2NET 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 216.12.160.0/20 AS26627 AS-PILOSOFT - Pilosoft, Inc. 216.21.160.0/20 AS27876 American Data Networks 216.194.160.0/20 AS27876 American Data Networks Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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DNS noise
by Nathan Eisenberg 06 Apr '12

06 Apr '12

Anyone else seeing this sort of noise lately? 10:35:00.958556 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:00.961055 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:01.262461 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:01.350979 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:01.351001 IP 66.171.180.48 > 72.20.23.24: ICMP 66.171.180.48 udp port 53 unreachable, length 74 10:35:01.573166 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:01.573204 IP 66.171.180.48 > 72.20.23.19: ICMP 66.171.180.48 udp port 53 unreachable, length 74 10:35:01.730128 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:01.970730 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:02.121218 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:02.374853 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:02.374879 IP 66.171.180.48 > 72.20.23.19: ICMP 66.171.180.48 udp port 53 unreachable, length 74 10:35:02.493257 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:02.493270 IP 66.171.180.48 > 72.20.23.24: ICMP 66.171.180.48 udp port 53 unreachable, length 74 10:35:02.726303 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:02.863667 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:03.023693 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:03.251935 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:03.251964 IP 66.171.180.48 > 72.20.23.24: ICMP 66.171.180.48 udp port 53 unreachable, length 74 10:35:03.326562 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:03.630514 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) 10:35:03.638327 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38) Note that the server involved does not run a DNS daemon, or listen on 53, or anything else that would attract attention.

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Re: DNS noise
by Joe St Sauver 06 Apr '12

06 Apr '12

Jimmy commented: #The underlying problem is that "BCP38" is not really a "best common practice", #despite the name of the series. # #It's really a "Best Uncommon Practice that really ought to be more common", #but we can't control operators and force them to make it more common. # #Lots of networks don't and will not ever implement BCP38; BCP38 is not being #more widely implemented, and there's no obvious action that will #force it to change. Check out the MIT Spoofer Project (http://spoofer.csail.mit.edu/summary.php) BCP38 anti-spoofing filtering is more common than you might think (on the order of 80% of {netblocks, IPs, ASNs} filter as of October 2011) Regards, Joe

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Weekly Routing Table Report
by Routing Analysis Role Account 06 Apr '12

06 Apr '12

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, TRNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 07 Apr, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 404580 Prefixes after maximum aggregation: 171963 Deaggregation factor: 2.35 Unique aggregates announced to Internet: 196184 Total ASes present in the Internet Routing Table: 40624 Prefixes per ASN: 9.96 Origin-only ASes present in the Internet Routing Table: 32993 Origin ASes announcing only one prefix: 15464 Transit ASes present in the Internet Routing Table: 5440 Transit-only ASes present in the Internet Routing Table: 139 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 32 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 670 Unregistered ASNs in the Routing Table: 296 Number of 32-bit ASNs allocated by the RIRs: 2347 Number of 32-bit ASNs visible in the Routing Table: 2191 Prefixes from 32-bit ASNs in the Routing Table: 5373 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 1411 Number of addresses announced to Internet: 2533675600 Equivalent to 151 /8s, 4 /16s and 210 /24s Percentage of available address space announced: 68.4 Percentage of allocated address space announced: 68.4 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 92.1 Total number of prefixes smaller than registry allocations: 171899 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 99031 Total APNIC prefixes after maximum aggregation: 32155 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 95427 Unique aggregates announced from the APNIC address blocks: 39280 APNIC Region origin ASes present in the Internet Routing Table: 4678 APNIC Prefixes per ASN: 20.40 APNIC Region origin ASes announcing only one prefix: 1237 APNIC Region transit ASes present in the Internet Routing Table: 730 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 172 Number of APNIC addresses announced to Internet: 642926944 Equivalent to 38 /8s, 82 /16s and 73 /24s Percentage of available APNIC address space announced: 81.5 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 149419 Total ARIN prefixes after maximum aggregation: 75874 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 120748 Unique aggregates announced from the ARIN address blocks: 50004 ARIN Region origin ASes present in the Internet Routing Table: 14948 ARIN Prefixes per ASN: 8.08 ARIN Region origin ASes announcing only one prefix: 5685 ARIN Region transit ASes present in the Internet Routing Table: 1571 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 22 Number of ARIN region 32-bit ASNs visible in the Routing Table: 17 Number of ARIN addresses announced to Internet: 805818560 Equivalent to 48 /8s, 7 /16s and 208 /24s Percentage of available ARIN address space announced: 64.0 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 100976 Total RIPE prefixes after maximum aggregation: 53317 RIPE Deaggregation factor: 1.89 Prefixes being announced from the RIPE address blocks: 92174 Unique aggregates announced from the RIPE address blocks: 57205 RIPE Region origin ASes present in the Internet Routing Table: 16359 RIPE Prefixes per ASN: 5.63 RIPE Region origin ASes announcing only one prefix: 7947 RIPE Region transit ASes present in the Internet Routing Table: 2636 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1480 Number of RIPE addresses announced to Internet: 502244616 Equivalent to 29 /8s, 239 /16s and 165 /24s Percentage of available RIPE address space announced: 80.9 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 40366 Total LACNIC prefixes after maximum aggregation: 8212 LACNIC Deaggregation factor: 4.92 Prefixes being announced from the LACNIC address blocks: 39937 Unique aggregates announced from the LACNIC address blocks: 19771 LACNIC Region origin ASes present in the Internet Routing Table: 1569 LACNIC Prefixes per ASN: 25.45 LACNIC Region origin ASes announcing only one prefix: 431 LACNIC Region transit ASes present in the Internet Routing Table: 295 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 21 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 517 Number of LACNIC addresses announced to Internet: 98728072 Equivalent to 5 /8s, 226 /16s and 120 /24s Percentage of available LACNIC address space announced: 65.4 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 8950 Total AfriNIC prefixes after maximum aggregation: 2118 AfriNIC Deaggregation factor: 4.23 Prefixes being announced from the AfriNIC address blocks: 7001 Unique aggregates announced from the AfriNIC address blocks: 2160 AfriNIC Region origin ASes present in the Internet Routing Table: 526 AfriNIC Prefixes per ASN: 13.31 AfriNIC Region origin ASes announcing only one prefix: 164 AfriNIC Region transit ASes present in the Internet Routing Table: 118 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 31531520 Equivalent to 1 /8s, 225 /16s and 34 /24s Percentage of available AfriNIC address space announced: 47.0 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2476 11110 997 Korea Telecom (KIX) 17974 1782 503 63 PT TELEKOMUNIKASI INDONESIA 7545 1658 301 85 TPG Internet Pty Ltd 4755 1575 386 157 TATA Communications formerly 9583 1237 94 541 Sify Limited 9829 1235 1041 30 BSNL National Internet Backbo 7552 1167 1062 11 Vietel Corporation 4808 1105 2050 316 CNCGROUP IP network: China169 24560 1021 385 167 Bharti Airtel Ltd., Telemedia 18101 947 131 159 Reliance Infocom Ltd Internet Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3432 3807 196 bellsouth.net, inc. 7029 3381 990 156 Windstream Communications Inc 18566 2092 383 179 Covad Communications 1785 1893 680 129 PaeTec Communications, Inc. 20115 1637 1561 617 Charter Communications 4323 1598 1044 380 Time Warner Telecom 22773 1568 2910 111 Cox Communications, Inc. 30036 1461 265 742 Mediacom Communications Corp 7018 1279 9774 828 AT&T WorldNet Services 11492 1185 216 365 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8402 1773 544 16 Corbina telecom 2118 1394 97 14 EUnet/RELCOM Autonomous Syste 31148 679 37 9 FreeNet ISP 34984 676 188 173 BILISIM TELEKOM 12479 656 658 57 Uni2 Autonomous System 20940 651 206 500 Akamai Technologies European 6830 639 1943 410 UPC Distribution Services 8551 574 360 81 Bezeq International 3320 532 8442 398 Deutsche Telekom AG 2578 501 33 7 Demos, Moscow, Russia Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1794 326 167 TVCABLE BOGOTA 28573 1773 1105 61 NET Servicos de Comunicao S.A 6503 1531 418 64 AVANTEL, S.A. 8151 1481 2998 354 UniNet S.A. de C.V. 7303 1353 827 189 Telecom Argentina Stet-France 26615 847 697 32 Tim Brasil S.A. 27947 687 74 102 Telconet S.A 11172 637 107 74 Servicios Alestra S.A de C.V 22047 584 326 15 VTR PUNTO NET S.A. 3816 570 242 100 Empresa Nacional de Telecomun Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1305 958 13 TEDATA 24863 848 274 35 LINKdotNET AS number 6713 493 649 18 Itissalat Al-MAGHRIB 3741 266 921 224 The Internet Solution 33776 208 12 21 Starcomms Nigeria Limited 12258 197 28 62 Vodacom Internet Company 24835 178 80 8 RAYA Telecom - Egypt 15706 168 32 6 Sudatel Internet Exchange Aut 16637 165 666 83 MTN Network Solutions 29571 161 15 16 Ci Telecom Autonomous system Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3432 3807 196 bellsouth.net, inc. 7029 3381 990 156 Windstream Communications Inc 4766 2476 11110 997 Korea Telecom (KIX) 18566 2092 383 179 Covad Communications 1785 1893 680 129 PaeTec Communications, Inc. 10620 1794 326 167 TVCABLE BOGOTA 17974 1782 503 63 PT TELEKOMUNIKASI INDONESIA 8402 1773 544 16 Corbina telecom 28573 1773 1105 61 NET Servicos de Comunicao S.A 7545 1658 301 85 TPG Internet Pty Ltd Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7029 3381 3225 Windstream Communications Inc 18566 2092 1913 Covad Communications 1785 1893 1764 PaeTec Communications, Inc. 8402 1773 1757 Corbina telecom 17974 1782 1719 PT TELEKOMUNIKASI INDONESIA 28573 1773 1712 NET Servicos de Comunicao S.A 10620 1794 1627 TVCABLE BOGOTA 7545 1658 1573 TPG Internet Pty Ltd 4766 2476 1479 Korea Telecom (KIX) 6503 1531 1467 AVANTEL, S.A. Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 54439 UNALLOCATED 8.25.174.0/24 17378 DBS International 54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.0.0/21 12654 RIPE NCC RIS Project 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 14.192.0.0/22 45464 Room 201, TGU Bldg 14.192.4.0/22 45464 Room 201, TGU Bldg 14.192.8.0/22 45464 Room 201, TGU Bldg 14.192.12.0/22 45464 Room 201, TGU Bldg 14.192.16.0/22 45464 Room 201, TGU Bldg 14.192.20.0/22 45464 Room 201, TGU Bldg 14.192.24.0/22 45464 Room 201, TGU Bldg 14.192.28.0/22 45464 Room 201, TGU Bldg 23.27.0.0/20 54500 EGIHosting 23.27.16.0/20 54500 EGIHosting Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:12 /10:28 /11:81 /12:235 /13:459 /14:832 /15:1485 /16:12182 /17:6284 /18:10499 /19:20616 /20:28820 /21:29800 /22:40437 /23:37608 /24:211529 /25:1182 /26:1430 /27:784 /28:163 /29:59 /30:17 /31:0 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 3040 3381 Windstream Communications Inc 6389 2149 3432 bellsouth.net, inc. 18566 2041 2092 Covad Communications 8402 1750 1773 Corbina telecom 10620 1689 1794 TVCABLE BOGOTA 30036 1401 1461 Mediacom Communications Corp 6503 1290 1531 AVANTEL, S.A. 11492 1148 1185 Cable One 8452 1114 1305 TEDATA 1785 1067 1893 PaeTec Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:532 2:754 4:14 6:3 8:396 12:1999 13:1 14:599 15:12 16:3 17:7 20:8 23:161 24:1768 27:1267 31:966 32:58 33:2 34:2 36:8 37:319 38:786 40:120 41:3114 42:129 44:3 46:1467 47:3 49:350 50:536 52:13 54:7 55:9 56:3 57:31 58:958 59:494 60:280 61:1203 62:973 63:1997 64:4167 65:2260 66:4500 67:2017 68:1152 69:3172 70:908 71:467 72:1833 74:2599 75:494 76:313 77:968 78:1006 79:498 80:1210 81:899 82:662 83:548 84:489 85:1195 86:404 87:908 88:351 89:1635 90:297 91:4683 92:520 93:1375 94:1476 95:1137 96:378 97:318 98:880 99:37 100:6 101:167 103:956 106:74 107:181 108:229 109:1272 110:757 111:900 112:448 113:590 114:621 115:796 116:911 117:721 118:903 119:1209 120:341 121:695 122:1667 123:1104 124:1368 125:1249 128:558 129:190 130:257 131:596 132:173 133:21 134:244 135:62 136:207 137:176 138:354 139:145 140:494 141:243 142:386 143:399 144:512 145:64 146:481 147:272 148:765 149:299 150:159 151:176 152:462 153:172 154:7 155:428 156:216 157:379 158:175 159:522 160:342 161:256 162:347 163:189 164:572 165:388 166:562 167:464 168:820 169:127 170:844 171:126 172:4 173:1735 174:576 175:429 176:459 177:640 178:1317 180:1181 181:73 182:787 183:284 184:451 185:1 186:2118 187:1029 188:1184 189:1792 190:5459 192:5990 193:5599 194:4615 195:3600 196:1291 197:129 198:3630 199:4481 200:5785 201:1902 202:8477 203:8590 204:4339 205:2484 206:2746 207:2783 208:4062 209:3581 210:2749 211:1476 212:1993 213:1907 214:886 215:109 216:5078 217:1521 218:542 219:323 220:1228 221:554 222:322 223:331 End of report

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SIP Carrier Consolidation
by Elijah Savage 06 Apr '12

06 Apr '12

Anyone here that have gone through the process of SIP trunking consolidation care to comment offline on Whom do you utilize? What has been your experience operationally? What was your experience during transition/implementation? Thank you ahead of time.

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Re: Quad-A records in Network Solutions ?
by Matt Ryanczak 06 Apr '12

06 Apr '12

On 3/28/12 11:00 PM, bmanning(a)vacation.karoshi.com wrote: > once, years ago, Netsol -did- have a path for injecting AAAA records. It was prototype > code with the engineering team. I had records registered with them. Have since sold the domains > and they moved to other registries. But they did support it for a while. I too had AAAA with nesol years ago. It required special phone calls to special people to update. Customer support never knew what was going on regarding AAAA or IPvWhat?. I suspect all of the people there that know about these types of things have moved on. Netsol has been leaking people since their sale to web.com last year, from actual layoffs and fear of the same. ~matt

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AUTO : Vincent FERRAN-LACOME est absent(e). (retour 16/04/2012)
by vincent.ferran-lacome＠bnpparibas.com 06 Apr '12

06 Apr '12

Je suis absent(e) du bureau jusqu'au 16/04/2012 Je suis absent pour le moment. En cas de nécessité, merci de transmettre vos messages à l'équipe CSIRT: csirt(a)bnpparibas.com +33 1 40 14 26 95 (office hours UTC +1/+2) -- I am currently out of office. If necessary, please forward your messages to the CSIRT team: csirt(a)bnpparibas.com +33 1 40 14 26 95 (office hours UTC +1/+2) Remarque : ceci est une réponse automatique à votre message "NANOG Digest, Vol 51, Issue 11" envoyé le 6/4/12 13:31:56. C'est la seule notification que vous recevrez pendant l'absence de cette personne. This message and any attachments (the "message") is intended solely for the intended addressees and is confidential. If you receive this message in error,or are not the intended recipient(s), please delete it and any copies from your systems and immediately notify the sender. Any unauthorized view, use that does not comply with its purpose, dissemination or disclosure, either whole or partial, is prohibited. Since the internet cannot guarantee the integrity of this message which may not be reliable, BNP PARIBAS (and its subsidiaries) shall not be liable for the message if modified, changed or falsified. Do not print this message unless it is necessary,consider the environment. ---------------------------------------------------------------------------------------------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur ou s'il ne vous est pas destine, merci de le detruire ainsi que toute copie de votre systeme et d'en avertir immediatement l'expediteur. Toute lecture non autorisee, toute utilisation de ce message qui n'est pas conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite. L'Internet ne permettant pas d'assurer l'integrite de ce message electronique susceptible d'alteration, BNP Paribas (et ses filiales) decline(nt) toute responsabilite au titre de ce message dans l'hypothese ou il aurait ete modifie, deforme ou falsifie. N'imprimez ce message que si necessaire, pensez a l'environnement.

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Looking for North American Carriage providers
by Ben Cornish 05 Apr '12

05 Apr '12

Hi All, I apologize for the Spam - We recently expanded into North America from Australia to service our Australian Clients with their international needs. We are seeking a Carrier or few carriers that can provide us with layer 2 Ethernet services that has coverage to the majority of North America. We are looking at the smaller services of 2 to 20mb area. Preferable handoff in Equinix-SV1(San Jose) or 1 Wilshire(Coresite LA) as VLAN's Seeking responses off list please. Cheers. Ben Cornish |Brennan IT| National Network Manager T: 0732349302 Direct: 0282353520 | M: 0417617204 | mailto:benc@brennanit.com.au | www.brennanit.com.au http://www.brennanit.com.au/press-release/brennan-it-named-1-managed-servic…

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CAIDA's 2012 IPv6 survey -- need network operators to fill out
by k claffy 04 Apr '12

04 Apr '12

[direct link to IPv6 operational deployment [plans] survey if you don't need background: http://www.surveygizmo.com/s3/749797/ipv6survey ] hello folks, we're trying to do some quantitative modeling of the IPv4->IPv6 transition, including the impact of IPv4 markets on likely future trajectories, but really need some empirical data to parametrize our model. with much help from many patient reviewers of the questions, we finally have a survey ready for operators to fill out. below i'll give an extremely terse description of the model just to give you an idea of why we need this granularity. there are another 10 dense pages describing the model pending peer review at NSF, which i can send to anyone interested in giving us feedback on it. but it's not necessary for responding to the survey. also note the checkbox to indicate you're amenable to further followup questions. survey will be available till 12 april 2012. (or tell us if you want to fill it out but need more time.) survey link, again: http://www.surveygizmo.com/s3/749797/ipv6survey thanks much, k, amogh, emile ------------------------------ Most prior work on modeling the adoption of new technologies assumed a binary decision at the organization level -- in the context of IPv6, this decision means switching completely to IPv6 or not at all. We propose to account for the fact that an organization may deploy IPv6 incrementally in its network, meaning that it will continue to have both IPv4 and IPv6 space. A key aspect of our model is that instead of a binary state per organization, we work at the granularity of devices, which are entities that need to be assigned IP addresses. We consider a device to correspond to a single instance of an IP addressing need, which typically corresponds to an interface. Though there can be multiple interfaces (``devices'') on the same computer/router, and multiple addresses (``virtual interfaces'') on a single interface, we will model each need for an independent IP address as an independent device. We define device classes based on the nature of addresses used to number those devices, e.g., public IPv4, IPv6, dual-stack-NATv4, dual-stack-public-IPv4, etc. We model the network growth requirements of each network in terms of the number of additional devices in that network that need to be configured in one of these device classes. ... (then we catalog a list of costs and incentives associated with the decision to adopt IPv6 or satisfy one's addressing needs with IPv4-based technologies. costs parameters include the costs of IPv4 addresses, NAT deployment, renumbering, and translation between IPv4 and IPv6. we will also try to model incentives such as policies and regulations.) We will then model two separate decision processes for a network, based on whether it seeks to add new devices (to expand its network, provision for new customers, deploy new services, etc.), or whether it seeks to optimize the numbering of its existing devices from among the five device classes defined previously. The latter operation may be necessary if external factors and costs have changed such that the network could substantially lower its costs by numbering its devices differently. We want to structure the model (based on feedback from opsfolk like you) to capture both initial costs as well as ongoing operational costs of supporting a given configuration of devices for a specified window following the decision. Iteration of the decision process continues for each network until we reach a state where no network has the incentive to change the numbering of its devices, which represents the equilibrium. ....

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