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The Cidr Report
by cidr-report＠potaroo.net 10 Mar '06

10 Mar '06

This report has been generated at Fri Mar 10 21:48:43 2006 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 03-03-06 179530 118693 04-03-06 179546 118792 05-03-06 179686 118779 06-03-06 179563 118842 07-03-06 179621 118946 08-03-06 179789 118924 09-03-06 179842 119053 10-03-06 179922 119119 AS Summary 21636 Number of ASes in routing system 9000 Number of ASes announcing only one prefix 1490 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 91207680 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center 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'). --- 10Mar06 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 180058 119091 60967 33.9% All ASes AS4323 1225 239 986 80.5% TWTC - Time Warner Telecom AS18566 918 9 909 99.0% COVAD - Covad Communications Co. AS4134 981 255 726 74.0% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1007 309 698 69.3% DLA-ASNBLOCK-AS - DoD Network Information Center AS22773 635 47 588 92.6% CCINET-2 - Cox Communications Inc. AS7018 1490 961 529 35.5% ATT-INTERNET4 - AT&T WorldNet Services AS6197 1002 475 527 52.6% BATI-ATL - BellSouth Network Solutions, Inc AS855 566 64 502 88.7% CANET-ASN-4 - Aliant Telecom AS19916 563 65 498 88.5% ASTRUM-0001 - OLM LLC AS7757 471 19 452 96.0% CCCH-AS4 - Comcast Cable Communications Holdings, Inc AS17488 516 82 434 84.1% HATHWAY-NET-AP Hathway IP Over Cable Internet AS3602 535 109 426 79.6% AS3602-RTI - Rogers Telecom Inc. AS812 438 28 410 93.6% ROGERS-CABLE - Rogers Cable Inc. AS9498 562 162 400 71.2% BBIL-AP BHARTI BT INTERNET LTD. AS17676 484 107 377 77.9% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS4766 663 302 361 54.4% KIXS-AS-KR Korea Telecom AS11492 636 279 357 56.1% CABLEONE - CABLE ONE AS15270 377 32 345 91.5% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS6198 584 243 341 58.4% BATI-MIA - BellSouth Network Solutions, Inc AS6467 394 53 341 86.5% ESPIRECOMM - Xspedius Communications Co. AS4755 678 338 340 50.1% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS22047 383 59 324 84.6% VTR BANDA ANCHA S.A. AS18101 331 35 296 89.4% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS14654 301 14 287 95.3% WAYPORT - Wayport AS6167 344 65 279 81.1% CELLCO-PART - Cellco Partnership AS3352 306 32 274 89.5% TELEFONICA-DATA-ESPANA Internet Access Network of TDE AS5668 519 251 268 51.6% AS-5668 - CenturyTel Internet Holdings, Inc. AS19262 615 347 268 43.6% VZGNI-TRANSIT - Verizon Internet Services Inc. AS9583 865 598 267 30.9% SIFY-AS-IN Sify Limited AS9929 315 60 255 81.0% CNCNET-CN China Netcom Corp. Total 18704 5639 13065 69.9% Top 30 total Possible Bogus Routes 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 61.4.64.0/20 AS9929 CNCNET-CN China Netcom Corp. 64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.25.224.0/20 AS12180 INTERNAP-2BLK - Internap Network Services 64.25.224.0/22 AS15083 INFOLINK-MIA-US - Infolink Information Services Inc. 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.51.134.0/24 AS29876 LNTC - Latency LLC 66.96.0.0/20 AS3770 WORLDPATH-AS - WorldPath Internet Services 66.117.0.0/19 AS33104 FUZION-COLO - FUZION COLO 66.117.0.0/21 AS30033 NHI-NETWORKS - NHI Networks 66.117.8.0/24 AS174 COGENT Cogent/PSI 66.117.23.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.25.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.26.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.27.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.187.96.0/24 AS10026 ANC Asia Netcom Corporation 66.187.108.0/24 AS10026 ANC Asia Netcom Corporation 66.187.109.0/24 AS10026 ANC Asia Netcom Corporation 66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 69.31.151.0/24 AS26627 AS-PILOSOFT - Pilosoft, Inc. 69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc. 91.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 91.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 131.64.0.0/12 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 132.0.0.0/10 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 137.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 138.136.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd 158.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.72.0.0/16 AS4780 SEEDNET Digital United Inc. 192.72.0.0/18 AS4780 SEEDNET Digital United Inc. 192.72.192.0/18 AS4780 SEEDNET Digital United Inc. 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network 192.96.36.0/24 AS5713 AFRINIC African Network Information Center 192.96.37.0/24 AS10474 AFRINIC African Network Information Center 192.96.135.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.136.0/23 AS2018 TENET - 1 - The Uninet Project 192.96.140.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.143.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.145.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.177.0/24 AS6083 AFRINIC African Network Information Center 192.96.250.0/24 AS2018 TENET - 1 - The Uninet Project 192.107.104.0/24 AS6458 GUATEL 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.122.212.0/24 AS209 ASN-QWEST - Qwest 192.124.252.0/22 AS680 DFN-IP DFN-IP service X-WiN 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.168.255.255/32 AS4637 REACH Reach Network Border AS 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 193.32.19.0/24 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.32.20.0/23 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.36.1.0/24 AS8220 COLT COLT Telecommunications 193.37.69.0/24 AS2856 BT-UK-AS BTnet UK Regional network 193.37.236.0/24 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.110.77.0/24 AS3356 LEVEL3 Level 3 Communications 193.110.78.0/24 AS3356 LEVEL3 Level 3 Communications 193.110.79.0/24 AS3356 LEVEL3 Level 3 Communications 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.59.176.0/20 AS1273 CW Cable & Wireless 194.153.156.0/24 AS24865 KMITCHELL-AS Keith Mitchell's Network 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.92.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.222.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.249.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.250.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.251.0/24 AS2018 TENET - 1 - The Uninet Project 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.96.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc. 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS3542 ITSDN-U5 - DISA/UNRRA 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc. 202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd. 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.131.64.0/19 AS9381 NEWTT-IP-AP Wharf T&T Ltd. 202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER 203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.134.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.89.143.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.154.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 209.40.192.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.200.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.208.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.216.0/21 AS6487 CyberNet de Guatemala S.A. 209.55.64.0/18 AS5726 INTERWORLD - InterWorld Communications, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.234.0.0/18 AS3845 STATE-NET - CS&W, Inc. 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A. 216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet Services 216.228.224.0/20 AS13674 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc. 216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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Last message i'll post for awhile I promise :-) (Need a Time Warner Cable NOC person)
by Drew Weaver 10 Mar '06

10 Mar '06

Are there any TWC NOC people on list? Thanks, Drew

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Presumed RF Interference
by Jon R. Kibler 08 Mar '06

08 Mar '06

Greetings: We have a client site that is driving us nuts! We have had more equipment failure issues at that one location than at all other locations we manage combined. We have come to the conclusion that there is some type of RF interference occurring that is causing these failures, but are at a loss how to prove that and track down the source. This client site is a new facility. Incoming power is lightning protected by the power company at the meter, and each breaker panel has surge suppression breakers. Incoming telco lines are lightning and surge protected by the telco at the demarc. The building has excellent grounding. All telephone, network, and computer equipment are on UPSes. All network infrastructure is certified CAT6. We have had the power company monitor line quality and they see no blips that would explain out observed problems. The local telco consistently claims the problem is on the customer side of the demarc -- even when it effects telco equipment. The site has channelized T1 voice, an ATM encapsulated FR WAN, and ADSL local Internet access. We have this identical setup for this client at about a dozen other locations, and none have any problems. The most frequent observed problem is the ADSL line dropping due to excessive noise. The problem seems to occur most at about 0130, 0730, 1530, and 2230 local time -- but not every day and not always at those times (about 20 to 25 failures per week). ADSL failures can last from 5 minutes to hours. We get frequent voice and FR circuits failures -- but of shorter duration (usually less than 5 minutes) and far less frequently (2 or 3 times a week). The voice and FR failures appear to occur concurrently (physically separate circuits), but not at the same time as the ADSL failure. I should also add that there never appears to be audible noise on the lines, even during failures. Equipment failures is what really leads to the conclusion this is probably an RF issue. Among the stuff we have had fail are: 3 DSL routers (cisco 8x7) 1 edge router (cisco 28xx) 1 FR router (cisco 36xx) 1 patch panel 1 telco smart jack (ATM/FR circuit) 1 PBX T1 card 1 patch panel (all jacks went open on the same pair) 6+ NICs I should add that the failures started before the building was occupied -- while we were still testing the basic infrastructure. In fact, we have observed problems from day one of the networks being turned on by the telcos. I should also add some other points: -- We have observed failures when the building had zero power, except for the UPS battery power in the server room, so we don't think that we are getting power spikes from anything within the building. -- The building only operates 0600 to 1800, so many failures are occurring after hours. -- There are no RF sources in the building. -- We are not near an airport. -- The building is steel framed and sided -- and a pretty good RF shield -- cell phone reception goes from 5 of 5 bars to 1 or 2 bars as soon as you walk in the door. Given what I have described, would you think this is an RF interference problem? RF problem or not, how would you track down this problem? We are to the point of bringing in a consulting EE, but I am not sure that most would be equipped to solve this problem; so, what should we look for in a potential consulting engineer? Apologizes for the dissertation! Any and all helpful suggestions welcome. Thanks! Jon Kibler -- Jon R. Kibler Chief Technical Officer A.S.E.T., Inc. Charleston, SC USA (843) 849-8214 ================================================== Filtered by: TRUSTEM.COM's Email Filtering Service http://www.trustem.com/ No Spam. No Viruses. Just Good Clean Email.

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IP Transit Questions.
by Robert Sherrard 08 Mar '06

08 Mar '06

My company is relativity new to the IP transit world... we've been a "collocated" customer for some time; however the idea of buying IP transit is new to us. We're looking at the possibility getting ourselves on a fiber local loop (Onfiber), which heads over towards the Westin Building here in Seattle. My question is, and I realize pricing points will vary between folks... what could I expect to buy for IP transit once I'm in the Westin Building. For starters we're looking at anywhere from 10-20 Megs of IP transit. Thanks in advance... Rob

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Re: Honest Cogent opinions without rhetoric.
by Charles Gucker 08 Mar '06

08 Mar '06

On Wed, Mar 08, 2006 at 12:10:35PM -0500, Omachonu Ogali wrote: > I have the need to de-pref my routes to Level3, to be of equal value as the > routes they receive from their peers, but they don't offer a community for > that. But wow, I can see that this route originated from Tustin, CA! Hrm, this seems very straight forward to me: >From http://www.onesc.net/communities/as3356 customer traffic engineering communities - LocalPref -------------------------------------------------------- 3356:70 - set local preference to 70 3356:80 - set local preference to 80 3356:90 - set local preference to 90 I believe peering routes are set to a local preference of 70 within L3, but I could be mistaken. Would be best to ask the TCAM group what a peer's LP is set to by default. > Everyone's traffic engineering needs are different. BGP communities were > created because one size doesn't fit all. But that doesn't mean that you > will find the same communities (that are of use to you) on a different > provider. Agreed, but you also have to understand that some networks have more or less flexiblity with their peers. The ones who have more "authority" (or believe they do) will publically offer greater control, while those with less "authority" may decide to limit their public statements. The other train of thought I've seen with a number of providers is.. The more communities they support, the more questions/misconfiguration they will run into as a result. I even know a few providers who refuse to give out their community guides without proving your technical knowledge first. charles

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RE: Honest Cogent opinions without rhetoric.
by David Hubbard 08 Mar '06

08 Mar '06

From: Omachonu Ogali [mailto:oogali@pantherexpress.net] > > I have the need to de-pref my routes to Level3, to be of > equal value as the routes they receive from their peers, > but they don't offer a community for that. But wow, I can > see that this route originated from Tustin, CA! I've found them pretty responsive to unusual requests, maybe they'd find a way to do that if you ask them; or go through your sales rep if the support guys aren't being helpful. Or maybe you can alter the preferences your providers that peer with them announce for you. Besides them, we've also had good help for unusual things from Global Crossing, who we no longer use for reasons other than dissatisfaction, and Time Warner Telecom. Have not yet had a need to make unusual requests of our other providers so I can't say how they'd deal with it. > Everyone's traffic engineering needs are different. BGP Yes, that's why the more a provider offers, the better. I'd rather have more than I need than not having what I currently need; my only point was that Cogent's community support is more lacking than the others I have used and BGP communities are often something that is not considered until the link is up or until the first problem where they would come in handy is encountered. > P.S. You have transit, not peering. Thank you, an egregious typo on my part. David

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Sales contact at MCI/UUNET?
by Drew Weaver 08 Mar '06

08 Mar '06

I realize this is most likely off topic and is likely to get me flamed but I am in desperate need of the contact information for someone in sales or management at MCI/UUNET. We have been paying a reseller for a UUNET circuit for about 6 months and I guess he hasn't been paying MCI/UUNET for this circuit and he's telling us they're about to disconnect circuit and this would be absolutely catastrophic to us right now; so if anyone has the contact information of anyone that would be in a position to assist us in transitioning this circuit or making arrangements to get something done; we would be forever in your gratitude. Thanks, -Drew

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RE: Honest Cogent opinions without rhetoric.
by David Hubbard 08 Mar '06

08 Mar '06

From: Charles Gucker > > > > Depends on if you like to do traffic engineering; Cogent's > > BGP community support, consisting of a whole three things you > > can set (two if you only have a single connection to them), > > makes that rather difficult. > > Umm, where did you get that mis-information from? The last > communitiy guide I've seen from them has quite a bit more than two ;p > > For a quick reference: > http://www.onesc.net/communities/as174/as174.pdf > > charles I was meaning more along the lines of types of things you can control. You have limited route export control, and even more limited path prepend control; that's two. :-) Or if you're multi-homed to them, you can set local pref too. Alternatively, I'll just use Level 3 as an example because we have peering with both of them as well as three others. Level 3 lets us control local pref, prepend to specific remote AS numbers (incredibly useful and something everyone should insist on from their providers), prepend to EU peers, all the same export controls and then some, announce to specific AS, do not announce to specific AS. On the incoming side, where Cogent has tags for all of four whole groups (NA non-customer, NA customer, EU non-customer, EU customer), Level 3 has tags for the same plus peering points, cities, countries, regions, MEDs ignored, MEDs accepted, internal, etc.. We like having our connectivity to Cogent because we like to have fast delivery of our customers' content to Cogent's customers, not because of the price. On more than one occasion we have had issues where the only solution to a problem of our customers accessing us coming through a remote peer of Cogent's who had a problem, and a preference for the Cogent route, was to turn down our session with them until that remote peer resolved their issue; there's no other way to make them prefer a different route, including with the help, or lack thereof, of Cogent's NOC. David

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RE: Honest Cogent opinions without rhetoric.
by David Hubbard 08 Mar '06

08 Mar '06

From: alex(a)pilosoft.com > > On Wed, 8 Mar 2006, Martin Hannigan wrote: > > > > > We have heard a lot of negatives about them, about their > > pricing model, about their network, about de-peering with > > Level 3, etc. What we really need is actual information. > > > Much of the negatives is from jaded competitors who don't > want to fairly compete. Other than that, the answer is 'it depends'. Depends on if you like to do traffic engineering; Cogent's BGP community support, consisting of a whole three things you can set (two if you only have a single connection to them), makes that rather difficult. David

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Re: Honest Cogent opinions without rhetoric.
by Martin Hannigan 08 Mar '06

08 Mar '06

At 01:56 AM 3/8/2006, alex(a)pilosoft.com wrote: >On Wed, 8 Mar 2006, Martin Hannigan wrote: > > > > I am looking for user experiences for people who have > > > purchased > > >transit from cogent in the 300Mbps or up range as far as performance, > > >stability, and any other measurable metric of quality you can come up > > >with. > > > > > > We have heard a lot of negatives about them, about their > > >pricing model, about their network, about de-peering with Level 3, etc. > > >What we really need is actual information. >Much of the negatives is from jaded competitors who don't want to fairly >compete. Other than that, the answer is 'it depends'. > >[ SNIP ] >(from Marty) > > From a global perspective[1], the top 12 (I stopped at Cogent since you > > are asking about them) service providers whose customers and peering > > partners reach the largest number of networks are listed below. You can > > make some fairly interesting assumptions on your own: ><snip> > >This gotta be the most meaningless metric ever. What does "reach" >mean? More ASNs seen behind given network? What does it tell, precisely? >There are ASNs which have significant chunks of intarweb (say, AS1668) >behind them, while AS721 is not likely to matter in a grand scheme of >things, even though all .mil installations are behind it. > >Note that many Cogent customers, while using Cogent for outbound, prefer >not to announce any routes to Cogent for political reasons (or prepend or >depref their routes). So, that metric won't be exactly helpful. 721 is included because it's on the list. In some markets Cogent is a leader and they cause price pressure. There are metro areas that Cogent is number two verses big tier 1. You ought to be getting good deals from the tier1 in that market as you manage your capacity. -M< -- Martin Hannigan (c) 617-388-2663 Renesys Corporation (w) 617-395-8574 Member of Technical Staff Network Operations hannigan(a)renesys.com

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