April 2011 - Test - lists.nanog.org

The Cidr Report
by cidr-report＠potaroo.net 22 Apr '11

22 Apr '11

This report has been generated at Fri Apr 22 21:12:05 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 15-04-11 357492 209863 16-04-11 357568 209705 17-04-11 356846 210150 18-04-11 357824 210186 19-04-11 358136 210366 20-04-11 358373 210576 21-04-11 358318 210619 22-04-11 358888 210705 AS Summary 37468 Number of ASes in routing system 15788 Number of ASes announcing only one prefix 3651 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 110418432 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'). --- 22Apr11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 358798 210633 148165 41.3% All ASes AS6389 3651 260 3391 92.9% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4323 2641 402 2239 84.8% TWTC - tw telecom holdings, inc. AS4766 2430 915 1515 62.3% KIXS-AS-KR Korea Telecom AS6478 1636 214 1422 86.9% ATT-INTERNET3 - AT&T Services, Inc. AS22773 1299 93 1206 92.8% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS19262 1495 298 1197 80.1% VZGNI-TRANSIT - Verizon Online LLC AS18566 1760 662 1098 62.4% COVAD - Covad Communications Co. AS10620 1437 347 1090 75.9% Telmex Colombia S.A. AS4755 1454 365 1089 74.9% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS1785 1792 764 1028 57.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS28573 1281 337 944 73.7% NET Servicos de Comunicao S.A. AS7552 1037 117 920 88.7% VIETEL-AS-AP Vietel Corporation AS7545 1552 758 794 51.2% TPG-INTERNET-AP TPG Internet Pty Ltd AS18101 934 151 783 83.8% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS8151 1245 529 716 57.5% Uninet S.A. de C.V. AS4808 1034 332 702 67.9% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS3356 1145 476 669 58.4% LEVEL3 Level 3 Communications AS7303 927 264 663 71.5% Telecom Argentina S.A. AS11492 1256 597 659 52.5% CABLEONE - CABLE ONE, INC. AS17488 942 300 642 68.2% HATHWAY-NET-AP Hathway IP Over Cable Internet AS6503 908 280 628 69.2% Axtel, S.A.B. de C.V. AS17676 658 70 588 89.4% GIGAINFRA Softbank BB Corp. AS24560 1140 560 580 50.9% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS855 632 56 576 91.1% CANET-ASN-4 - Bell Aliant Regional Communications, Inc. AS14420 663 104 559 84.3% CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP AS3549 944 394 550 58.3% GBLX Global Crossing Ltd. AS22047 565 30 535 94.7% VTR BANDA ANCHA S.A. AS4780 718 188 530 73.8% SEEDNET Digital United Inc. AS22561 863 340 523 60.6% DIGITAL-TELEPORT - Digital Teleport Inc. AS4804 576 82 494 85.8% MPX-AS Microplex PTY LTD Total 38615 10285 28330 73.4% 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- 24.48.0.0/14 AS5769 VIDEOTRON - Videotron Telecom Ltee 24.225.128.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.192.0/23 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.224.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.237.0/24 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 24.225.248.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc. 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 45.127.0.0/16 AS13767 DBANK - DataBank Holdings, Ltd. 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 AS16626 GNAXNET-AS - Global Net Access, LLC 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 69.6.81.0/24 AS13442 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 72.22.32.0/19 AS33150 72.22.61.0/24 AS33150 72.22.62.0/24 AS33150 76.77.32.0/19 AS2828 XO-AS15 - XO Communications 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 115.42.28.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.40.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.42.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.44.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.47.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.48.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.49.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.50.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.51.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.52.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.53.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.54.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.55.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.56.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.57.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.58.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.59.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.61.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.62.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 115.42.63.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 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. 158.222.70.0/23 AS6137 SISNA - SISNA, Inc. 158.222.72.0/23 AS6137 SISNA - SISNA, Inc. 158.222.224.0/20 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.224.0/22 AS19864 O1COMM - O1 COMMUNICATIONS 158.222.229.0/24 AS19864 O1COMM - O1 COMMUNICATIONS 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. 192.9.0.0/16 AS11479 BRM-SUN-AS - Sun Microsystems, Inc 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.101.46.0/24 AS6503 Axtel, S.A.B. de C.V. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.145.251.0/24 AS10026 PACNET Pacnet Global Ltd 192.154.32.0/19 AS81 NCREN - MCNC 192.154.64.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 196.2.224.0/22 AS24863 LINKdotNET-AS 196.6.108.0/24 AS5713 SAIX-NET 196.13.201.0/24 AS2018 TENET-1 196.13.202.0/24 AS2018 TENET-1 196.13.203.0/24 AS2018 TENET-1 196.13.204.0/24 AS2018 TENET-1 196.110.105.0/24 AS8513 SKYVISION SkyVision Network Services 196.202.224.0/21 AS8818 TELE Greenland Autonomous System 198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider 198.15.4.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.15.5.0/24 AS4323 TWTC - tw telecom holdings, inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.73.210.0/24 AS21570 ACI-1 - Accelerated Connections Inc. 198.74.38.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.39.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.74.40.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services 198.97.72.0/21 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.96.0/19 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.97.240.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 198.99.241.0/24 AS11797 AC-NIELSEN-AS AC NIELSEN 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.214.0/24 AS21804 ACCESS-SK - Access Communications Co-operative Limited 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.175.231.0/24 AS19262 VZGNI-TRANSIT - Verizon Online LLC 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 198.182.235.0/24 AS3356 LEVEL3 Level 3 Communications 199.16.32.0/19 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 199.33.84.0/22 AS9911 CONNECTPLUS-AP Singapore Telecom 199.121.0.0/16 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.123.16.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center 199.185.130.0/23 AS19662 UNISERVE-ONLINE - Uniserve On Line 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.202.216.0/21 AS577 BACOM - Bell Canada 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC. 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. 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 202.66.128.0/18 AS9584 GENESIS-AP Diyixian.com Limited 202.66.160.0/19 AS9584 GENESIS-AP Diyixian.com Limited 202.66.160.0/20 AS9584 GENESIS-AP Diyixian.com Limited 202.66.176.0/20 AS9584 GENESIS-AP Diyixian.com Limited 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 202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.146.186.0/24 AS23655 SNAP-NZ-AS Snap Internet Limited 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.131.0/24 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 203.18.156.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 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 203.190.32.0/22 AS24564 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.10.232.0/21 AS33150 204.19.14.0/23 AS577 BACOM - Bell Canada 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 205.189.134.0/24 AS11814 DISTRIBUTEL-AS11814 - DISTRIBUTEL COMMUNICATIONS LTD. 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. 207.174.188.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.189.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.190.0/24 AS26116 INDRA - Indra's Net Inc. 207.174.191.0/24 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 208.64.240.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.241.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.242.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.243.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.244.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.64.247.0/24 AS13871 TELEBYTE-NW - Telebyte NW 208.78.165.0/24 AS16565 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 208.92.196.0/22 AS10929 NETELLIGENT - Netelligent Hosting Services Inc. 208.92.199.0/24 AS26198 3MENATWORK - 3Men@Work Integrated Networks, Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications 209.165.239.0/24 AS209 ASN-QWEST - Qwest Communications Company, LLC 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 209.213.1.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 209.213.4.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.10.235.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.10.236.0/24 AS13780 NTNCOMMUNICATIONS - NTN 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.21.196.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.201.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.202.0/24 AS12251 INVISION - Invision.com, Inc. 216.21.206.0/23 AS12251 INVISION - Invision.com, Inc. 216.58.192.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.197.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc. 216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc. 216.105.192.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.196.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.105.200.0/21 AS7385 INTEGRATELECOM - Integra Telecom, Inc. 216.172.198.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.172.199.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 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(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

1 0

Re: Voice Peering?
by Santino Codispoti 22 Apr '11

22 Apr '11

Thank you I will look into AMS-IX. I was thinking the GRX platforms where for SMS and Data only. On Thu, Apr 21, 2011 at 4:45 AM, Erik Bais <ebais(a)a2b-internet.com> wrote: > Hi Santino, > > Did you had a look at AMS-IX ? They have a grx offering for that. > > Regards, > Erik Bais > A2B Internet > > Verstuurd vanaf mijn iPad > > Op Apr 21, 2011 om 9:35 heeft Santino Codispoti <santino.codispoti(a)gmail.com> het volgende geschreven: > >> I know a few years ago some Vo/IP peering points where started. Are >> they still around today? I am looking for a solution to hand-off >> outbound voice calls to mobile operators >> >

4 3

Looking for XO routing engineer
by George Carey 22 Apr '11

22 Apr '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Can someone from XO please contact me about this hijacked prefix: 72.44.152.0/24 I see it coming from AS35909 through AS2828. No luck getting anyone on the phone. Thanks George Carey -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.11 (Darwin) iEYEARECAAYFAk2x0jcACgkQJdlqYKAmD6FO2gCeJd6uToUghlKdjNd38JpAP2VZ SnwAoLQbpi9ygjIkCPDCU6TrnPOFc98r =OkTz -----END PGP SIGNATURE-----

1 0

Weekly Routing Table Report
by Routing Analysis Role Account 22 Apr '11

22 Apr '11

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, 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 <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 23 Apr, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 355581 Prefixes after maximum aggregation: 160822 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 175365 Total ASes present in the Internet Routing Table: 37371 Prefixes per ASN: 9.51 Origin-only ASes present in the Internet Routing Table: 31313 Origin ASes announcing only one prefix: 15071 Transit ASes present in the Internet Routing Table: 5046 Transit-only ASes present in the Internet Routing Table: 135 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 36 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 564 Unregistered ASNs in the Routing Table: 275 Number of 32-bit ASNs allocated by the RIRs: 1309 Number of 32-bit ASNs visible in the Routing Table: 1012 Prefixes from 32-bit ASNs in the Routing Table: 2274 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 161 Number of addresses announced to Internet: 2418199616 Equivalent to 144 /8s, 34 /16s and 204 /24s Percentage of available address space announced: 65.2 Percentage of allocated address space announced: 65.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 90.5 Total number of prefixes smaller than registry allocations: 147668 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 88888 Total APNIC prefixes after maximum aggregation: 29965 APNIC Deaggregation factor: 2.97 Prefixes being announced from the APNIC address blocks: 85376 Unique aggregates announced from the APNIC address blocks: 36841 APNIC Region origin ASes present in the Internet Routing Table: 4419 APNIC Prefixes per ASN: 19.32 APNIC Region origin ASes announcing only one prefix: 1226 APNIC Region transit ASes present in the Internet Routing Table: 700 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 22 Number of APNIC region 32-bit ASNs visible in the Routing Table: 48 Number of APNIC addresses announced to Internet: 610706464 Equivalent to 36 /8s, 102 /16s and 164 /24s Percentage of available APNIC address space announced: 77.4 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 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: 140032 Total ARIN prefixes after maximum aggregation: 71172 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112430 Unique aggregates announced from the ARIN address blocks: 45157 ARIN Region origin ASes present in the Internet Routing Table: 14334 ARIN Prefixes per ASN: 7.84 ARIN Region origin ASes announcing only one prefix: 5473 ARIN Region transit ASes present in the Internet Routing Table: 1492 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 11 Number of ARIN addresses announced to Internet: 798645760 Equivalent to 47 /8s, 154 /16s and 94 /24s Percentage of available ARIN address space announced: 63.5 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: 84022 Total RIPE prefixes after maximum aggregation: 47852 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 77130 Unique aggregates announced from the RIPE address blocks: 51011 RIPE Region origin ASes present in the Internet Routing Table: 15538 RIPE Prefixes per ASN: 4.96 RIPE Region origin ASes announcing only one prefix: 7807 RIPE Region transit ASes present in the Internet Routing Table: 2435 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 749 Number of RIPE addresses announced to Internet: 466814464 Equivalent to 27 /8s, 211 /16s and 6 /24s Percentage of available RIPE address space announced: 75.2 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: 32482 Total LACNIC prefixes after maximum aggregation: 7448 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 31486 Unique aggregates announced from the LACNIC address blocks: 16475 LACNIC Region origin ASes present in the Internet Routing Table: 1439 LACNIC Prefixes per ASN: 21.88 LACNIC Region origin ASes announcing only one prefix: 432 LACNIC Region transit ASes present in the Internet Routing Table: 261 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 199 Number of LACNIC addresses announced to Internet: 82681984 Equivalent to 4 /8s, 237 /16s and 160 /24s Percentage of available LACNIC address space announced: 54.8 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: 7658 Total AfriNIC prefixes after maximum aggregation: 1822 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 6067 Unique aggregates announced from the AfriNIC address blocks: 1881 AfriNIC Region origin ASes present in the Internet Routing Table: 441 AfriNIC Prefixes per ASN: 13.76 AfriNIC Region origin ASes announcing only one prefix: 133 AfriNIC Region transit ASes present in the Internet Routing Table: 95 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 23300352 Equivalent to 1 /8s, 99 /16s and 137 /24s Percentage of available AfriNIC address space announced: 34.7 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 2430 9482 904 Korea Telecom (KIX) 17974 1798 515 29 PT TELEKOMUNIKASI INDONESIA 7545 1549 300 81 TPG Internet Pty Ltd 4755 1454 634 167 TATA Communications formerly 7552 1195 1064 7 Vietel Corporation 24560 1140 323 204 Bharti Airtel Ltd., Telemedia 9583 1054 77 495 Sify Limited 4808 1030 2097 293 CNCGROUP IP network: China169 9829 1008 870 50 BSNL National Internet Backbo 17488 942 164 98 Hathway IP Over Cable Interne 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 3652 3822 255 bellsouth.net, inc. 4323 2649 1090 398 Time Warner Telecom 1785 1789 681 128 PaeTec Communications, Inc. 18566 1760 349 229 Covad Communications 6478 1636 309 43 AT&T Worldnet Services 20115 1535 1552 638 Charter Communications 19262 1495 4949 298 Verizon Global Networks 7018 1357 6801 886 AT&T WorldNet Services 22773 1299 2865 84 Cox Communications, Inc. 2386 1270 536 912 AT&T Data Communications Serv 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 6830 519 1780 321 UPC Distribution Services 34984 508 106 182 BILISIM TELEKOM 3292 455 1997 391 TDC Tele Danmark 29049 450 33 48 AzerSat LLC. 8866 446 134 26 Bulgarian Telecommunication C 20940 439 129 335 Akamai Technologies European 3320 423 7609 368 Deutsche Telekom AG 12479 409 577 6 Uni2 Autonomous System 8551 405 354 47 Bezeq International 702 396 1802 309 UUNET - Commercial IP service 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 1437 268 160 TVCABLE BOGOTA 28573 1281 988 87 NET Servicos de Comunicao S.A 8151 1248 2688 369 UniNet S.A. de C.V. 7303 927 467 149 Telecom Argentina Stet-France 6503 907 354 72 AVANTEL, S.A. 14420 663 53 91 CORPORACION NACIONAL DE TELEC 22047 565 310 15 VTR PUNTO NET S.A. 3816 516 225 98 Empresa Nacional de Telecomun 11172 488 99 82 Servicios Alestra S.A de C.V 27947 483 53 53 Telconet S.A 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 836 445 11 TEDATA 24863 778 147 39 LINKdotNET AS number 15475 422 90 8 Nile Online 36992 297 415 13 Etisalat MISR 3741 267 985 227 The Internet Solution 6713 238 215 13 Itissalat Al-MAGHRIB 33776 227 13 5 Starcomms Nigeria Limited 24835 209 78 10 RAYA Telecom - Egypt 29571 161 17 11 Ci Telecom Autonomous system 16637 148 441 86 MTN Network Solutions 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 3652 3822 255 bellsouth.net, inc. 4323 2649 1090 398 Time Warner Telecom 4766 2430 9482 904 Korea Telecom (KIX) 23456 2274 652 1233 32-bit ASN transition 17974 1798 515 29 PT TELEKOMUNIKASI INDONESIA 1785 1789 681 128 PaeTec Communications, Inc. 18566 1760 349 229 Covad Communications 6478 1636 309 43 AT&T Worldnet Services 7545 1549 300 81 TPG Internet Pty Ltd 20115 1535 1552 638 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2649 2251 Time Warner Telecom 17974 1798 1769 PT TELEKOMUNIKASI INDONESIA 1785 1789 1661 PaeTec Communications, Inc. 6478 1636 1593 AT&T Worldnet Services 18566 1760 1531 Covad Communications 4766 2430 1526 Korea Telecom (KIX) 7545 1549 1468 TPG Internet Pty Ltd 4755 1454 1287 TATA Communications formerly 10620 1437 1277 TVCABLE BOGOTA 11492 1254 1239 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 31.192.112.0/20 30361 Swiftwill Solutions 31.192.128.0/19 31214 TIS-DIALOG Autonomous system 31.192.232.0/23 47271 CJSC "Uralunicom" 31.192.232.0/22 47271 CJSC "Uralunicom" 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 /8:20 /9:12 /10:28 /11:77 /12:221 /13:458 /14:786 /15:1379 /16:11668 /17:5741 /18:9624 /19:19173 /20:25618 /21:25611 /22:33775 /23:32642 /24:185589 /25:1120 /26:1285 /27:700 /28:38 /29:8 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2253 3652 bellsouth.net, inc. 18566 1728 1760 Covad Communications 6478 1590 1636 AT&T Worldnet Services 4323 1346 2649 Time Warner Telecom 10620 1327 1437 TVCABLE BOGOTA 11492 1203 1254 Cable One 23456 1146 2274 32-bit ASN transition 7011 1062 1161 Citizens Utilities 1785 1059 1789 PaeTec Communications, Inc. 22773 843 1299 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:262 2:43 4:14 5:1 6:1 8:347 12:2010 13:1 14:441 15:15 16:3 17:8 20:9 23:5 24:1605 27:722 31:209 32:60 33:3 34:2 37:1 38:764 40:101 41:2400 42:3 44:3 46:866 47:4 49:177 50:365 52:13 55:3 56:2 57:31 58:846 59:478 60:387 61:1268 62:984 63:1919 64:3934 65:2326 66:4353 67:1856 68:1081 69:2977 70:700 71:345 72:1904 73:1 74:2349 75:297 76:335 77:844 78:676 79:452 80:1098 81:829 82:500 83:461 84:647 85:1082 86:559 87:760 88:332 89:1581 90:183 91:3709 92:514 93:1058 94:1260 95:787 96:466 97:251 98:823 99:35 101:63 103:5 106:1 107:5 108:84 109:932 110:550 111:695 112:325 113:361 114:523 115:683 116:949 117:674 118:800 119:1147 120:301 121:672 122:1626 123:1071 124:1250 125:1268 128:265 129:164 130:172 131:566 132:113 133:19 134:217 135:49 136:214 137:142 138:301 139:104 140:486 141:174 142:398 143:397 144:485 145:52 146:441 147:207 148:578 149:233 150:170 151:187 152:307 153:179 154:3 155:395 156:191 157:353 158:132 159:382 160:316 161:243 162:277 163:165 164:487 165:350 166:511 167:426 168:719 169:153 170:784 171:77 172:1 173:1502 174:531 175:359 177:79 178:853 180:821 181:9 182:428 183:201 184:252 185:1 186:1140 187:802 188:985 189:1004 190:4846 192:5792 193:4829 194:3457 195:2964 196:1166 197:16 198:3564 199:3920 200:5522 201:1493 202:8351 203:8446 204:4136 205:2329 206:2745 207:3029 208:3964 209:3505 210:2726 211:1382 212:1973 213:1712 214:744 215:67 216:4879 217:1657 218:561 219:374 220:1195 221:483 222:341 223:143 End of report

1 0

Youtube Geolocation
by Dan White 22 Apr '11

22 Apr '11

We're experiencing very poor quality with You Tube, and it appears we're subject to a bad entry within a geolocation database somewhere. When we attempt to view videos, the contact comes back to us from IPs like: 208.117.226.21 (traceroute's through Frankfurt) 173.194.50.47 74.125.100.29 All of those IPs are >125ms away from us (67.217.144.0/20, and 216.14.144.0/20). However, we've never experienced redirection problems with Google before (we always land at www.google.com) so I'm not sure where to take our trouble. The page at: http://www.google.com/support/websearch/bin/request.py?contact_type=ip isn't of much help as it assumes the problem is google.com redirection. Are there any contacts at Youtube who could provide some assistance? Thanks, -- Dan White

7 10

VPN over slow Internet connections
by Ben Whorwood 22 Apr '11

22 Apr '11

Dear all, Can anyone share any thoughts or experiences for VPN links running over slow Internet connections, typically 2kB/s - 3kB/s (think 33.6k modem)? We are looking into utilising OpenVPN for out-of-office workers who would be running mobile broadband in rural areas. Typical data across the wire would be SQL queries for custom applications and not much else. Some initial thoughts include... * How well would the connection handle certificate (>= 2048 bit key) based authentication? * Is UDP or TCP better considering the speed and possibility of packet loss (no figures to hand)? * Is VPN over this type of connection simply a bad idea? Many thanks in advance. Kind regards, Ben Whorwood

17 22

365x24x7
by harbor235 21 Apr '11

21 Apr '11

If I were going to provide a 365x24x7 NOC, how many teams of personnel do I need to fully cover operations? I assume minimally you need 3 teams to cover the required 24 hr coverage, but there is off time and schedule rotation? thoughts, experience? Mike

29 35

Stupid Cisco ACL question
by up＠3.am 21 Apr '11

21 Apr '11

Ok, I've done a lot of Cisco standard and extended ACLs, but I do not understand why the following does not work the way I think it should. Near the end of this extended named ACL, I have the following: permit tcp any eq 443 any permit tcp any eq 80 any deny ip any host 2.2.3.4 permit ip any any This is applied to an inbound interface(s). We want anybody outside to be able to reach ports 80 and 443 of any host on our network, no matter what, then block ALL other access to select hosts, such as 2.2.3.4, even ICMP. However, as soon as I apply this rule to the interface, ports 80 and 443 of that host become unreachable. A telnet to 2.2.3.4 443 gets "Connection refused" until I tear out the deny ACL above. I even tried adding udp for both ports, to no avail. I had always thought that these ACLs were processed in order, so that the explicit permit statement, though limited to a specific protocol but for all hosts, gets considered before the explicit deny statement for all IP to a particular host. What did I forget to consider? TIA,

5 5

Re: Bandwidth Growth
by Curran, David 21 Apr '11

21 Apr '11

> Date: Thu, 21 Apr 2011 10:36:54 +0800 > From: Adrian Chadd <adrian(a)creative.net.au> > Subject: Re: Bandwidth growth > To: "Patrick W. Gilmore" <patrick(a)ianai.net> > Cc: NANOG list <nanog(a)nanog.org> > Message-ID: <20110421023654.GE13776(a)skywalker.creative.net.au> > Content-Type: text/plain; charset=us-ascii > > If it's a true research project, wouldn't you really be interested in both > evidence for/against? :-) > > Just my 2c here, > > > Adrian Touche. Fortunately not being in the academic world allows me to be completely biased! :) But your point is well taken, and I'll take evidence for either side. I appreciate all of the responses I've received thus far. Especially the links to the IX graphs. While I agree you can't account for peering/de-peering, it also strikes me that on the aggregate the graphs do indeed show a significant increase around the "holidays" (the US ones anyway). The LINX, TORIX, and SIX graphs provided earlier, for example, seem relatively flat until the Nov. timeframe at which point they seem to seek a new higher "normal". Could just be my lack of sleep and my biased opinion though. As one might infer, I'm trying to find evidence corroborating my own experiences. My theory being that all of those cool Internet connected toys (Blue Ray, TVs, Ipads, etc) that hit the market this past year have lead to a substantial increase in residential Internet traffic. If that were true, I guess I'd expect that enterprise oriented service providers would not see the same uptick as residential providers. Thanks again to all have responded (and anyone else that might still). David *************************************************************************************** The information contained in this message, including attachments, may contain privileged or confidential information that is intended to be delivered only to the person identified above. If you are not the intended recipient, or the person responsible for delivering this message to the intended recipient, Windstream requests that you immediately notify the sender and asks that you do not read the message or its attachments, and that you delete them without copying or sending them to anyone else.

3 2

Re: Doubt in ISIS
by Savyasachi Choudhary 21 Apr '11

21 Apr '11

> Thank you for the response. Its very detailed, and I am yet to understand > it completely. > > Following is the problem I am facing on Ericsson Routers. > > (static route) > Router1---------------------------------------------------------------------Router2 > ip route 202.1.1.0/24 null0 cost 9 > > In this 2 router topology, I have imported a static route 202.1.1.0/24 > with cost 9. > > And I am giving the following redistribute command on Router1, and later > observe show ip route command on Router2 > > PROTOCOL COMMAND (in Router1) > COST (Router2) OBSERVATION > > ISIS #redistribute static > 10 > default > #redistribute static metric 7 mertic-type external > 17 > configured in redist + 10 > #redistribute static metric 7 mertic-type internal > 17 > configured in redist + 10 > > What is observed is, it completely ignores the cost (9) that is configured > with the static route. In case of OSPF, they consider cost 9 also. > So, I have a doubt, whether ISIS RFC describes to ignore the route cost? Or > it is just implementation dependent. > > > Regards, > Savyasachi > 7676077879 > > > > On Thu, Apr 21, 2011 at 2:14 PM, Vitkovsky, Adam <avitkovsky(a)emea.att.com>wrote: > >> Isis doesn't have type-1 and type-2 external routes >> It has something similar though >> Metric of a prefix can be marked as internal metric or external metric >> >> These are my isis notes section regarding internal and external: >> >> the metric type for ext(redistributed) routes can be set as int/ext >> -by default internal metric is asigned during redistribution >> if nothing is specified >> >> ext metric has the I/E bit set -bit 7 >> => higher metric value +64 >> -------------------------------------- >> but cisto doesn't set bit 7 but bit 8 >> -when narrow metric is used bit 8 of the metric field is set by cisco >> => external metric than appears to be increased by 128 >> -------------------------------------- >> _____________________________________________________________________ >> Narrow metric: >> 8th bit is S-bit -support for qos metrics (only 0 is supported) >> 7th bit is the internal/external bit >> And the remaining 8 bits are for the metric >> >> 1b 1b 6bits => max 63 values >> 0 i/e default metric value >> 1 i/e delay metric value >> 1 i/e expense metric value >> 1 i/e error metric value >> -------neighbor ID-------- >> >> Internal is default on cisco >> If you set external the bit 7 is set -thus the metric appears to be +64 >> higher compared to the same route redistributed as internal >> >> >> ______________________________________________ >> TLV specified by ISO 10589 contain metric info: >> ES neighbor type 2 >> IS neigh tyep 3 >> prefix neigh type 5 >> >> ______________________________________________ >> TLV specified by RFC 1195 contain metric info: >> ip internal reachability type 128 >> ip external reachability type 130 >> >> >> >> __________________________________________________________ >> ISIS metric extensions >> >> extended IS reachability tlv type 22 >> extended ip reachability tlv type 135 >> and >> trafic engineering rotuer ID tlv type 134 >> >> >> -the borrowed the metric fields for delay, expense, error >> -as they are not used >> >> -but the first S-bit and the I/E-bit remained >> So the same apply to the extended metric as well >> >> >> >> These are my notes form the labs: >> _____________________________________________________________ >> R1 >> route-map static-routes permit 10 >> match ip address prefix-list static-routes >> ! >> router isis 1 >> redistribute static ip route-map static-routes metric-type external >> level-1 >> >> -everything explicitely set in the redistribute cmd >> _____________________________________________________________ >> R2 >> route-map static-routes permit 10 >> match interface Null0 >> set metric-type external >> set level level-1 >> ! >> router isis 1 >> redistribute static ip route-map static-routes >> >> -everything set in the route-map used during the redistribution >> _____________________________________________________________ >> >> R7#sh isis dat ver >> >> IS-IS Level-1 Link State Database: >> LSPID LSP Seq Num LSP Checksum LSP Holdtime >> ATT/P/OL >> R1.00-00 0x00000007 0x23CA 642 1/0/0 >> Area Address: 49.0001 >> NLPID: 0xCC >> Hostname: R1 >> IP Address: 1.1.1.1 >> Metric: 10 IP 13.0.0.0 255.255.255.0 >> Metric: 10 IP 17.0.0.0 255.255.255.0 >> Metric: 0 IP 1.1.1.1 255.255.255.255 >> Metric: 10 IS R7.00 >> Metric: 0 IP-External 200.10.0.0 255.255.255.0 >> Metric: 0 IP-External 200.20.0.0 255.255.255.0 >> Metric: 0 IP-External 200.30.0.0 255.255.255.0 >> R2.00-00 0x00000015 0x5DA2 1049 1/0/0 >> Area Address: 49.0001 >> NLPID: 0xCC >> Hostname: R2 >> IP Address: 2.2.2.2 >> Metric: 10 IP 24.0.0.0 255.255.255.0 >> Metric: 10 IP 27.0.0.0 255.255.255.0 >> Metric: 0 IP 2.2.2.2 255.255.255.255 >> Metric: 10 IS R7.00 >> Metric: 64 IP-External 200.10.0.0 255.255.255.0 >> Metric: 64 IP-External 200.20.0.0 255.255.255.0 >> Metric: 64 IP-External 200.30.0.0 255.255.255.0 >> >> >> -so definition of external metric in redistribution cmd >> did not touch the metric -not sure how come it's still marked as ext >> -as the bit 7 or 8 should have been set >> >> -and definition of external metric in route-map >> did set the bit 7 of the metric -thus we see increase in metric of 64 >> >> -but none of the cmds have set the bit 8 as stated in the book :) >> >> >> >> >> adam >> >> -----Original Message----- >> From: Savyasachi Choudhary [mailto:savyasachi.choudhary@gmail.com] >> Sent: Thursday, April 21, 2011 8:56 AM >> To: nanog(a)nanog.org >> Subject: Doubt in ISIS >> >> I have a doubt in ISIS. >> While redistributing routes from other protocols, how the metric is >> decided? >> OSPF has deccribed this in RFC 2328 Section 16.4 : >> >> '4) Let X be the cost specified by the preferred routing >> table >> >> entry for the ASBR/forwarding address, and Y the cost >> specified in the LSA. X is in terms of the link state >> metric, and Y is a type 1 or 2 external metric. >> >> (5) Look up the routing table entry for the destination N. If >> no entry exists for N, install the AS external path to N, >> with next hop equal to the list of next hops to the >> forwarding address, and advertising router equal to ASBR. >> If the external metric type is 1, then the path-type is set >> to type 1 external and the cost is equal to X+Y. If the >> external metric type is 2, the path-type is set to type 2 >> external, the link state component of the route's cost is X, >> >> and the type 2 cost is Y.' >> >> What is the behavior in ISIS? >> Regards, >> Savyasachi >> 7676077879 >> >>

1 0