June 2003 - Test - lists.nanog.org

The Cidr Report
by cidr-report＠potaroo.net 06 Jun '03

06 Jun '03

This report has been generated at Fri Jun 6 21:46:22 2003 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 30-05-03 123105 87146 31-05-03 122376 86932 01-06-03 122515 86903 02-06-03 122477 86963 03-06-03 122769 87032 04-06-03 122592 87189 05-06-03 122702 86976 06-06-03 122422 87204 AS Summary 15222 Number of ASes in routing system 6000 Number of ASes announcing only one prefix 1526 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73126144 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 06Jun03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 122696 87194 35502 28.9% All ASes AS7132 1015 227 788 77.6% SBIS-AS SBC Internet Services - Southwest AS11305 646 136 510 78.9% INTERLAND-NET1 Interland Incorporated AS701 1526 1077 449 29.4% ALTERNET-AS UUNET Technologies, Inc. AS7843 631 182 449 71.2% ADELPHIA-AS Adelphia Corp. AS4323 597 177 420 70.4% TW-COMM Time Warner Communications, Inc. AS7018 1332 928 404 30.3% ATT-INTERNET4 AT&T WorldNet Services AS3908 899 530 369 41.0% SUPERNETASBLK SuperNet, Inc. AS4755 406 84 322 79.3% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS1221 1080 773 307 28.4% ASN-TELSTRA Telstra Pty Ltd AS4355 402 116 286 71.1% ERMS-EARTHLNK EARTHLINK, INC AS6197 491 206 285 58.0% BATI-ATL BellSouth Network Solutions, Inc AS6198 468 184 284 60.7% BATI-MIA BellSouth Network Solutions, Inc AS22927 298 15 283 95.0% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS1239 957 675 282 29.5% SPRINTLINK Sprint AS4814 297 19 278 93.6% CHINANET-BEIJING-AP China Telecom (Group) AS6347 362 90 272 75.1% DIAMOND SAVVIS Communications Corporation AS27364 315 83 232 73.7% ACS-INTERNET Armstrong Cable Services AS17676 250 24 226 90.4% GIGAINFRA XTAGE CORPORATION AS22773 217 8 209 96.3% CCINET-2 Cox Communications Inc. Atlanta AS17557 357 149 208 58.3% PKTELECOM-AS-AP Pakistan Telecom AS209 495 303 192 38.8% ASN-QWEST Qwest AS2386 439 250 189 43.1% INS-AS AT&T Data Communications Services AS705 509 332 177 34.8% ALTERNET-AS UUNET Technologies, Inc. AS2048 260 88 172 66.2% LANET-1 State of Louisiana AS6327 188 23 165 87.8% SHAWFIBER Shaw Fiberlink Limited AS13601 206 45 161 78.2% ASN-INNERHOST Innerhost, Inc. AS4200 178 21 157 88.2% AGIS-NET Apex Global Information Services, Inc. AS690 452 296 156 34.5% MERIT-AS-27 Merit Network Inc. AS20115 462 310 152 32.9% CHARTER-NET-HKY-NC Charter Communications AS3602 225 79 146 64.9% SPRINT-CA-AS Sprint Canada Inc. Total 15960 7430 8530 53.4% Top 30 total Possible Bogus Routes 24.2.128.0/21 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.7.10.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.11.98.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.14.197.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.18.132.0/23 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.23.8.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.119.0.0/16 AS11492 CABLEONE CABLE ONE 24.180.60.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.185.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.186.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.187.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.188.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.189.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.191.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.223.128.0/17 AS11060 NEO-RR-COM Time Warner Cable Northeast Ohio 61.12.32.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 61.12.34.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 64.30.64.0/19 AS14900 USLEC-CORP-1 USLEC Corp. 65.2.165.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.145.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.146.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.147.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.150.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.151.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.8.0.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.11.200.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.11.201.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.15.117.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 66.41.192.0/18 AS13367 ATT-BBND-B AT&T Broadband 68.192.0.0/13 AS6128 CABLE-NET-1 Cablevision Systems Corp. 68.192.0.0/14 AS6128 CABLE-NET-1 Cablevision Systems Corp. 69.50.160.0/20 AS27595 ATRIVO-AS Atrivo 132.0.0.0/10 AS568 SUMNET-AS DISO-UNRRA 137.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 138.136.0.0/13 AS568 SUMNET-AS DISO-UNRRA 140.240.0.0/13 AS1 GNTY-1 Genuity 158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 165.212.0.0/16 AS7424 USANET USA.Net 166.16.0.0/16 AS7132 SBIS-AS SBC Internet Services - Southwest 171.64.0.0/10 AS1 GNTY-1 Genuity 192.16.52.0/24 AS1239 SPRINTLINK Sprint 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 ALTERNET-AS UUNET Technologies, Inc. 192.83.16.0/20 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.32.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.64.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.96.0/22 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.100.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.119.135.0/24 AS270 PSCNI-AS National Aeronautics and Space Administration 192.124.252.0/22 AS680 AS680 DFN-IP service G-WiN 192.135.50.0/24 AS7018 ATT-INTERNET4 AT&T WorldNet Services 192.136.79.0/24 AS719 AS719 LANLINK autonomous system 192.136.135.0/24 AS1239 SPRINTLINK Sprint 192.153.136.0/21 AS568 SUMNET-AS DISO-UNRRA 192.153.144.0/21 AS568 SUMNET-AS DISO-UNRRA 192.172.0.0/19 AS568 SUMNET-AS DISO-UNRRA 192.188.208.0/20 AS568 SUMNET-AS DISO-UNRRA 192.228.0.0/16 AS4637 REACH Reach Network Border AS 192.243.32.0/23 AS2044 PALIN-AS Palin Aquisitions Inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM Bell Atlantic, Inc. 198.97.72.0/21 AS568 SUMNET-AS DISO-UNRRA 198.97.80.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.88.0/24 AS89 NUSC-CSTLNET-AS Naval Underwater Systems Center 198.97.192.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.240.0/20 AS568 SUMNET-AS DISO-UNRRA 198.98.8.0/21 AS3701 NERONET Oregon Joint Graduate Schools of Engineering 198.101.4.0/22 AS568 SUMNET-AS DISO-UNRRA 198.136.32.0/20 AS19329 MCNET Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET CityNet, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM GT Group Telecom Services Corp. 198.161.165.0/24 AS852 ASN852 Telus Advanced Communications 198.163.155.0/24 AS684 MBNET-AS Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ATTCA-15290 AT&T Canada Telecom Services Company 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 199.10.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.60.0.0/20 AS271 BCNET-AS University of British Columbia 199.79.32.0/20 AS3701 NERONET Oregon Joint Graduate Schools of Engineering 199.84.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 199.114.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.114.0.0/21 AS568 SUMNET-AS DISO-UNRRA 199.114.128.0/18 AS568 SUMNET-AS DISO-UNRRA 199.120.32.0/19 AS16582 NEXTLEVELINTERNET NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.123.16.0/20 AS568 SUMNET-AS DISO-UNRRA 199.123.80.0/21 AS568 SUMNET-AS DISO-UNRRA 199.167.25.0/24 AS701 ALTERNET-AS UUNET Technologies, Inc. 199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 202.3.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.145.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.146.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.152.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.154.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.155.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.156.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.157.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.4.252.0/22 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd. 202.6.96.0/24 AS4761 INDOSAT1-AP INDOSATNET-ASN 202.6.97.0/24 AS4761 INDOSAT1-AP INDOSATNET-ASN 202.6.99.0/24 AS4761 INDOSAT1-AP INDOSATNET-ASN 202.44.112.0/20 AS17458 CWNETDG-IO-AP Cable and Wireless 202.79.0.0/20 AS4637 REACH Reach Network Border AS 202.89.200.0/24 AS7473 SINGTEL-AS-AP Singapore Telecom 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.93.64.0/19 AS9425 I-NEXT-AS-AP Inter.net Philippines border AS 202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider 202.130.224.0/20 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.130.240.0/21 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.130.248.0/21 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.130.248.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 202.130.252.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 202.136.254.0/23 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.136.254.0/24 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.140.230.0/23 AS9466 UUNET-JP-AP UUNET Japan Limited 202.140.232.0/23 AS9466 UUNET-JP-AP UUNET Japan Limited 202.140.234.0/24 AS9466 UUNET-JP-AP UUNET Japan Limited 202.140.235.0/24 AS9466 UUNET-JP-AP UUNET Japan Limited 202.142.130.0/23 AS17820 DIL-AP DIRECT INTERNET LTD. 202.142.132.0/22 AS17820 DIL-AP DIRECT INTERNET LTD. 202.143.48.0/21 AS4795 INDOSAT2-ID-AP INDOSATNET-ASN 202.143.56.0/21 AS4795 INDOSAT2-ID-AP INDOSATNET-ASN 202.159.128.0/17 AS4622 UNSPECIFIED IndoInternet PT. 202.161.0.0/19 AS10097 FLOWCOM flow communications level 2 541 kent st sydney nsw 2000 202.161.0.0/21 AS4634 -No Whois Entry- 202.161.8.0/21 AS4634 -No Whois Entry- 202.164.192.0/19 AS7599 IPXC-AS-AP IP Exchange 202.165.0.0/19 AS9443 INTERNETPRIMUS-AS-AP Primus Telecommunications 202.173.32.0/19 AS9671 APNIC-AS-3-BLOCK Asia Pacific Network Information Centre 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.76.128.0/24 AS9729 IS-AP iAdvantage Limited 203.76.224.0/24 AS9549 COMDEK-ISP-AS-AP Comdek ISP 203.78.125.0/24 AS17653 PCM-HK-AP Pacific Century Matrix 203.86.2.0/23 AS4058 APNIC-4058 Asia Pacific Network Information Centre 203.90.192.0/20 AS9658 ETPI-IDS-AS-AP Eastern Telecoms Phils., Inc. 203.135.99.0/24 AS2687 IBM-MMD-AS IBM 203.135.224.0/19 AS4058 APNIC-4058 Asia Pacific Network Information Centre 204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 204.29.189.0/24 AS11755 WAYMARKCOMM Waymark Internet Services, Inc. 204.52.232.0/24 AS7177 DFWNET DFW Internet Services, Inc. 204.89.225.0/24 AS2495 KANREN Kansas Research and Education Network 204.154.240.0/21 AS11572 MEDIACOM Mediacom,llc / RidgeNet 204.194.110.0/23 AS10588 ICSNET Intelligent Computer Solutions, Inc 205.150.0.0/15 AS701 ALTERNET-AS UUNET Technologies, Inc. 205.173.248.0/21 AS2548 ALGX-ATCW-AS Allegiance Telecom Companies Worldwide 206.41.32.0/19 AS14824 NEWSOUTH NewSouth Communications Corp. 206.81.187.0/24 AS19194 JOVITA Sentris Network LLC 206.82.64.0/18 AS7029 ALLTELNET Alltel Information Services, Inc. 206.108.34.0/24 AS852 ASN852 Telus Advanced Communications 206.108.35.0/24 AS852 ASN852 Telus Advanced Communications 206.126.0.0/19 AS5750 FLEXNET-HAWAII FlexNet Inc. 206.167.57.0/24 AS376 RISQ-AS Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ATTCA-15290 AT&T Canada Telecom Services Company 207.47.39.0/24 AS816 UUNET-AS4 UUNET Technologies, Inc. 207.92.0.0/14 AS2551 ICG ICG NetAhead, Inc. 207.162.192.0/19 AS4589 EASYNET Easynet Group Plc 207.231.96.0/19 AS11194 NUNETPA NuNet Inc 208.65.232.0/23 AS701 ALTERNET-AS UUNET Technologies, Inc. 208.81.187.0/24 AS19194 JOVITA Sentris Network LLC 208.101.8.0/24 AS3561 CWUSA Cable & Wireless USA 208.104.103.0/24 AS1239 SPRINTLINK Sprint 209.104.198.0/24 AS6137 SISNA SISNA, Inc. 209.104.199.0/24 AS6137 SISNA SISNA, Inc. 209.104.218.0/24 AS6137 SISNA SISNA, Inc. 209.104.219.0/24 AS6137 SISNA SISNA, Inc. 209.104.252.0/22 AS12030 PACIFIC-ONLINE-PON Pacific Online Services 209.108.0.0/14 AS2551 ICG ICG NetAhead, Inc. 209.151.128.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 209.160.70.0/23 AS13415 LUMIX Lumix Communications, Inc. 209.160.73.0/24 AS13415 LUMIX Lumix Communications, Inc. 209.160.209.0/24 AS13415 LUMIX Lumix Communications, Inc. 209.160.210.0/24 AS13415 LUMIX Lumix Communications, Inc. 209.169.219.0/24 AS189 GENUITY-AS189 Genuity 209.169.223.0/24 AS189 GENUITY-AS189 Genuity 209.172.0.0/18 AS7770 TRITON Triton Technologies, Inc. 209.213.32.0/19 AS10629 INTERPAC Inter-Pacific Network Services 209.213.50.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.51.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.55.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.56.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.160.0/19 AS4355 ERMS-EARTHLNK EARTHLINK, INC 209.222.137.0/24 AS10494 AAI Accurate Automation, Inc. 209.240.96.0/19 AS10815 KCNET KCnet, Inc. 209.251.0.0/19 AS11036 SISCOM SISCOM, Inc 210.4.20.0/22 AS10095 AS10095 Segmentation Fault 210.4.60.0/24 AS10095 AS10095 Segmentation Fault 210.4.61.0/24 AS10095 AS10095 Segmentation Fault 210.16.128.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 211.27.156.0/24 AS9768 PUBNET1-AS KT 216.18.224.0/21 AS11458 IMBRIS IMBRIS, INC. 216.18.224.0/22 AS11458 IMBRIS IMBRIS, INC. 216.18.228.0/22 AS11458 IMBRIS IMBRIS, INC. 216.47.32.0/19 AS11304 SPLUS Solutions Plus Inc. 216.67.224.0/19 AS25653 PEGASUS Pegasus Web Technologies 216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services 216.115.178.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.179.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.182.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.183.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.184.0/23 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.186.0/23 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.186.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.189.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.190.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.191.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.153.0.0/17 AS6203 ISDN-NET ISDN-Net Inc. 216.153.96.0/20 AS1239 SPRINTLINK Sprint 216.211.177.0/24 AS14473 KNET KNet, Inc. 216.226.108.0/22 AS3602 SPRINT-CA-AS Sprint Canada Inc. 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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anyone from "Advanced DNS Group" at NetSol?
by alex＠yuriev.com 05 Jun '03

05 Jun '03

Hello, Is there a person from the "Advanced DNS Group" of Network Solutions (which aparently is the only group that can even look at data consistency problems) that is works outside 9-5 EDT window? If so, can that person please drop me email off the list? You either have some major database issues that are manifesting themselves, or your interface with the registry that runs gTLD is broken... If this person does exist, can you please drop me email off list? Thanks, Alex

1 0

Fast TCP?
by Mike Leber 05 Jun '03

05 Jun '03

Does anybody know any more about Fast TCP: http://story.news.yahoo.com/news?tmpl=story&cid=581&ncid=581&e=6&u=/nm/2003… Is it real? It it open source? Are there any implementations available? Mike. +----------------- H U R R I C A N E - E L E C T R I C -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber(a)he.net http://www.he.net | +-----------------------------------------------------------------------+

11 12

anyone from NetworkSolutions who understands results of dig?
by alex＠yuriev.com 05 Jun '03

05 Jun '03

Hello, If there is anyone from Network Solutions who understands result of "dig" and can not read from a script (which, unfortunately is wrong in some cases), could that person get back to me of the list, please? Pretty please? I do not want to go through yet another round of explanation with yet another customer service person that there is an inconsistency with the data returned by the web-based system and the data in GTLD-SERVERS.NET, get them to say "Ahhh, now I see, can you please include this into email and we fix this" to have someone *else* get that email and go back to the square 1. Thank you, Alex

1 0

Re: Clocking Sources (was NTp sources that work in a datacenter (was Re: Is latency equivalentto RTT?))
by Peter Lothberg 05 Jun '03

05 Jun '03

> The desire for everyone to have a timing source that is tracable to > a Cesium clock comes from the SONET standard. If you tie two SONET > networks together, if they both don't have timing that's tracable to > a Stratum 1 (PRS) source, they'll drift at the points where they > interconnect and PSE (Positive Stuff Event) and NSE (Negative Stuff > Event) errors will be the result. This is BAD BAD BAD for the voice > networks that are provisioned over SONET. BITS and SONET systems do not carry time-of-day information. It's only frequency. Sonet/GR253C SDH/G811 stratum-1 is 1x10-11 that will give you one pointer update every 72 days. But you can do one pointer-update every two frames... -P (you do stuffing on PDH systems)

4 3

C&W to withdraw from US
by Steve Bellovin 05 Jun '03

05 Jun '03

According to media reports, C&W is going to withdraw from U.S. markets. No word on the of its Internet operations; the Wall Street Journal says C&W declined to say how much the new restructuring plan will cost or explain how it plans to withdraw from the U.S. because it doesn't want to weaken its negotiating position with potential buyers of assets. Although the company has £850 million in outstanding property leases in the U.S., Richard Lapthorne, the company's new chairman, said the company's net cash of 1£.62 billion means "we know we can afford the worst case." Most of C&W's U.S. revenue is derived from hosting Web sites for large companies, such as Microsoft Corp. C&W pushed into the U.S. Web-site hosting market by buying Digital Island Inc. of San Francisco and most of the assets of Exodus Communications Inc. of Santa Clara, Calif., for about $1 billion in 2001. But Mr. Caio says C&W's competitors have lower costs, and its U.S. operations had an operating loss of £255 million on revenue of £512 million in the year ended March 31. --Steve Bellovin, http://www.research.att.com/~smb (me) http://www.wilyhacker.com (2nd edition of "Firewalls" book)

1 0

RE: Suspected SPAM: NAT for an ISP
by Muir, Ronald 05 Jun '03

05 Jun '03

It is about time for the semi annual RFC1918 rants. ;-( > -----Original Message----- > From: Christopher J. Wolff [mailto:chris@bblabs.com] > Sent: Wednesday, June 04, 2003 3:52 PM > To: nanog(a)merit.edu > Subject: Suspected SPAM: NAT for an ISP > > > > Hello, > > I would like to know if any service providers have built > their access networks out using private IP space. It > certainly would benefit the global IP pool but it may > adversely affect users with special applications. At any > rate, it sounds like good fodder for a debate. > > Regards, > Christopher J. Wolff, VP CIO > Broadband Laboratories, Inc. > http://www.bblabs.com > > > >

2 1

NAT for an ISP
by Christopher J. Wolff 05 Jun '03

05 Jun '03

Hello, I would like to know if any service providers have built their access networks out using private IP space. It certainly would benefit the global IP pool but it may adversely affect users with special applications. At any rate, it sounds like good fodder for a debate. Regards, Christopher J. Wolff, VP CIO Broadband Laboratories, Inc. http://www.bblabs.com

11 16

Sprintlink
by Christopher J. Wolff 04 Jun '03

04 Jun '03

Is anyone seeing any weirdness with routes dropping to/from Sprintlink customers in NYC? Regards, Christopher J. Wolff, VP CIO Broadband Laboratories, Inc. http://www.bblabs.com

1 0

RFC1928 Rant
by Cutler, James R 04 Jun '03

04 Jun '03

I would appreciate pointers to good RFC 1918 rants. Thanks. - James R. Cutler, EDS 800 Tower Drive, Troy, MI 48098 1 248 265 7514 james.cutler(a)eds.com -----Original Message----- From: Muir, Ronald [mailto:ronald.muir@xo.com] Sent: 2003-06-04, Wednesday 4:00 PM To: nanog(a)merit.edu Cc: Christopher J. Wolff Subject: RE: Suspected SPAM: NAT for an ISP It is about time for the semi annual RFC1918 rants. ;-(

1 0