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The Cidr Report
by cidr-report＠potaroo.net 02 Jul '04

02 Jul '04

This report has been generated at Fri Jul 2 21:43:37 2004 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 25-06-04 137983 95540 26-06-04 138009 95509 27-06-04 138071 95509 28-06-04 138161 95561 29-06-04 138171 95300 30-06-04 137865 95481 01-07-04 138191 95479 02-07-04 138157 95402 AS Summary 17429 Number of ASes in routing system 7100 Number of ASes announcing only one prefix 1415 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 54024960 Largest address span announced by an AS (/32s) AS721 : DNIC 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'). --- 02Jul04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 138136 95400 42736 30.9% All ASes AS6347 981 208 773 78.8% SAVV SAVVIS Communications Corporation AS18566 725 8 717 98.9% CVAD Covad Communications AS4134 741 161 580 78.3% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 737 206 531 72.0% TWTC Time Warner Telecom AS7018 1415 970 445 31.4% ATTW AT&T WorldNet Services AS7843 512 129 383 74.8% ADELPH-13 Adelphia Corp. AS6197 707 326 381 53.9% BNS-14 BellSouth Network Solutions, Inc AS701 1282 917 365 28.5% UU UUNET Technologies, Inc. AS22909 393 34 359 91.3% CMCS Comcast Cable Communications, Inc. AS27364 376 38 338 89.9% ARMC Armstrong Cable Services AS9583 474 140 334 70.5% SATYAMNET-AS Satyam Infoway Ltd., AS22773 389 64 325 83.5% CXAB Cox Communications Inc. Atlanta AS1239 952 642 310 32.6% SPRN Sprint AS11172 353 56 297 84.1% Servicios Alestra S.A de C.V AS17676 339 50 289 85.3% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS6198 509 223 286 56.2% BNS-14 BellSouth Network Solutions, Inc AS9929 317 33 284 89.6% CNCNET-CN China Netcom Corp. AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS6467 305 33 272 89.2% ACSI e.spire Communications, Inc. AS6478 326 55 271 83.1% ATTW AT&T WorldNet Services AS14654 239 6 233 97.5% WAYPOR-3 Wayport AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS4766 484 264 220 45.5% KIXS-AS-KR Korea Telecom AS3356 895 677 218 24.4% LEVEL3 Level 3 Communications AS6140 377 162 215 57.0% IMPSA ImpSat AS9443 357 155 202 56.6% INTERNETPRIMUS-AS-AP Primus Telecommunications AS6327 231 32 199 86.1% SHAWC-2 Shaw Communications Inc. AS2386 424 228 196 46.2% ADCS-1 AT&T Data Communications Services AS5668 381 195 186 48.8% CIH-12 CenturyTel Internet Holdings, Inc. AS14824 279 103 176 63.1% NCC-105 NewSouth Communications Corp. Total 16124 6230 9894 61.4% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.12.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 132.0.0.0/10 AS568 DISOUN DISO-UNRRA 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 AS702 MCI EMEA 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.136.71.0/24 AS719 LANLINK Elisa Oyj 192.136.79.0/24 AS719 LANLINK Elisa Oyj 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS568 DISOUN DISO-UNRRA 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS568 DISOUN DISO-UNRRA 198.97.80.0/20 AS568 DISOUN DISO-UNRRA 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS568 DISOUN DISO-UNRRA 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS568 DISOUN DISO-UNRRA 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS568 DISOUN DISO-UNRRA 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.84.0.0/16 AS701 UU UUNET Technologies, Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS568 DISOUN DISO-UNRRA 199.114.128.0/18 AS568 DISOUN DISO-UNRRA 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS568 DISOUN DISO-UNRRA 199.123.0.0/18 AS568 DISOUN DISO-UNRRA 199.123.16.0/20 AS568 DISOUN DISO-UNRRA 199.123.80.0/21 AS568 DISOUN DISO-UNRRA 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.56.160.0/20 AS10199 DISHNET-AS-AP DishnetDSL Limited 202.70.0.0/20 AS4658 NETFRONT-AS NETFRONT I.T. LIMITED (HONG KONG) 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.123.96.0/20 AS9288 COMCEN-AS-AP Com-Cen Pty Ltd 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.136.128.0/20 AS10199 DISHNET-AS-AP DishnetDSL Limited 202.141.160.0/24 AS9237 HUTCHCA-AS BTN Access Limited 202.141.190.0/24 AS10026 ANC Asia Netcom Corporation 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.145.0/24 AS4637 REACH Reach Network Border AS 203.84.146.0/24 AS4637 REACH Reach Network Border AS 203.188.16.0/21 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.169.219.0/24 AS189 LVLT Level 3 Communications, Inc. 209.169.223.0/24 AS189 LVLT Level 3 Communications, Inc. 209.172.0.0/18 AS7770 TRTI Triton Technologies, 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. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL-33 Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.133.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.135.0/24 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications 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 swinog(a)swinog.ch

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Yahoo and Intel e-mail servers
by Simon Brilus 02 Jul '04

02 Jul '04

Hi - I've tried multiple methods to get BOGONs and blacklisted IP's removed from these domains with very limited success, so could someone from these companies respond to me offline, if possible, concerning our IP ranges being denied access to send e-mails.... Many thanks Simon Simon Brilus Internet Manager - Engineering and Operations Bulldog Communications

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RE: Peering point speed publicly available?
by Cody Lerum 02 Jul '04

02 Jul '04

Very true.. Work with the network operators on each side of the link to determine the speed/load. For the most part if they really want your business, they will be able to provide something. The main reason link speed maybe important to me would serialization delay on the circuit. OC-768 should be much lower latency than a T1...unless your are at the end of the queue :-) Latency is probably be your primary concern for large TCP transfers anyway. -C -----Original Message----- From: Tony Li [mailto:tony.li@tony.li] Sent: Thursday, July 01, 2004 7:02 PM To: Cody Lerum Cc: erik(a)myevilempire.net; nanog(a)merit.edu; network.support(a)oati.net Subject: Re: Peering point speed publicly available? Is it really important to know the link speeds? What good does it do without knowing about the loading on those links? I would MUCH rather have an empty T1 than have to contend with a very oversubscribed OC-768. Tony On Jul 1, 2004, at 5:25 PM, Cody Lerum wrote: > DNS can sometimes give you a hint > > [my nets snipped] > 4 t3-1-2-0.ar2.SEA1.gblx.net (64.211.206.113) 20.436 ms 18.309 ms > 17.605 ms <------------DS3 > 5 so1-0-0-2488M.ar4.SEA1.gblx.net (67.17.71.210) 17.607 ms 16.982 > ms 16.971 ms <-----OC-48 > 6 p3-3.IR1.Seattle-WA.us.xo.net (206.111.7.5) 17.864 ms 19.491 ms > 17.181 ms > 7 p5-1-0-3.RAR1.Seattle-WA.us.xo.net (65.106.0.197) 17.723 ms > 17.632 ms 19.045 ms > 8 65.106.0.50 (65.106.0.50) 38.133 ms 39.197 ms 49.961 ms > MPLS Label=101549 CoS=0 TTL=1 S=1 > 9 p0-0-0d0.RAR1.SanJose-CA.us.xo.net (65.106.1.61) 37.669 ms > 38.572 ms 36.517 ms > 10 p7-0.DCR1.DC-SanJose-CA.us.xo.net (65.106.2.146) 37.830 ms > 36.524 ms 37.743 ms > 11 ge1-1.CDR2.DC-SanJose-CA.us.xo.net (209.220.168.10) 38.428 ms > 38.050 ms 37.179 ms <-----Gig Ethernet > 12 205.158.6.100.ptr.us.xo.net (205.158.6.100) 40.179 ms 39.784 ms > 39.444 ms > 13 x218.cd9e6c.sj.concentric.net (205.158.108.218) 39.188 ms 39.723 > ms 39.895 ms > > However MPLS hidden hops may hide internal paths, and any connection > may be limited to slower than its line rate, and dns entries may be > old.... > > It's not publicly available at one source that I'm aware of, and if > there is they don't have my info. > > -C > From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf > Of Erik Amundson > Sent: Thursday, July 01, 2004 6:10 PM > To: nanog(a)merit.edu > Cc: network.support(a)oati.net > Subject: Peering point speed publicly available? > > > NANOG, > > > > I have a question regarding information on my ISP's peering > relationships. Are the speeds of some or all peering relationships > public knowledge, and if so, where can I find this? By speed, I mean > bandwidth (DS3, OC3, 100Mbps, 1Gbps, etc.). I am trying to transfer > large stuff from my AS, through my ISP, through another ISP, to > another AS, and I'm wondering how fast the peering point is between > the ISPs. I'm working with my provider to get this information as we > speak, but I'm wondering if it's available publicly anywhere. If it > were, this could be one way to evaluate providers in the future, I > guess... > > > > Erik Amundson > A+, N+, CCNA, CCNP > IT and Network Manager > Open Access Technology Int'l, Inc. > Phone (763) 201-2005 > Fax (763) 553-2813 > mailto:erik.amundson@oati.net > >

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ARIN Comment
by Ray Plzak 02 Jul '04

02 Jul '04

On Tuesday, 29 June, I assigned the ARIN General Counsel the task to review and prepare the necessary filings to either intervene formally or as an amicus in the case filed in the Superior Court of New Jersey Chancery Division for Morris County No: MRSC-87-04. ARIN's interest in reviewing this dispute was two fold: a. Determine whether the global and regional policies regarding the use of Internet Numbering Resources have been violated; and b. Determine whether the Registration Service Agreements which both the Plaintiff and the Defendant have signed with ARIN have been violated. The pleadings in this case have been carefully reviewed by the ARIN General Counsel. As a result of that review we have preliminarily determined that neither the policies nor Registration Service Agreements have been violated. Therefore we have concluded that it is not appropriate for ARIN to intervene formally or as an amicus in this case. The parties to the dispute are the Plaintiff, a company known as University Communications dba Pegasus Web Technologies, which provides web hosting and internet access services to customers, and its principal; and the Defendant, Net Access Corporation, an ISP that supplied number resources, obtained from ARIN, to the Plaintiff. ARIN has no interest in the 'who shot John' allegations between Plaintiff and Defendant regarding claims of breach of contract, breach of duty of good faith and fair dealing, and etc. Stripped to its essence, it is clear that Plaintiff no longer wants to do business in the long run with Defendant, and appears to be following ARIN and Internet customary procedures to renumber client accounts in a manner that will permit its internet customers to seamlessly continue their use of the Internet, whether the number used was originally issued to the Defendant, then provided to the specific member of the public by the Plaintiff, or is now being renumbered by the Plaintiff. It does take time to renumber, and it appears the real issue in this suit is Plaintiff's attempt to obtain from the Court what it believes is sufficient time to accomplish this task. We express no opinion whether the Plaintiff might have moved faster in this regard and avoided this dispute, because those facts are not fully known to us. We have carefully reviewed the arguments provided and do not believe the arguments by the Plaintiff sought any relief inconstant with obtaining time to renumber, consistent with ARIN's and the Internet community's normal expectations. That is also the overall thrust of the Order to Show Cause With Temporary Restraints issued by the Court. There is language in that Order that if taken out of context of the arguments and spirit of the Order might have raised some concern. For example the Order does not clearly expire in several months consistent with the requested time to renumber. However, we have concluded it is not a problem when read in context and ARIN can at any point raise in any Court its objection to an open ended requirement that numbers supplied by business A to business B must be maintained in perpetuity and not renumbered. Therefore, we have concluded that the recent intense discussion was fueled by a characterization of the litigation by one of the parties in a manner that was intended to and did raise community concerns, that we do not agree are implicated at this time. We will continue to monitor this and other litigation that might genuinely raise these concerns, and will alert the community to such cases when we find them so courts can be educated about these policies. Raymond A. Plzak President & CEO ARIN

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RE: Peering point speed publicly available?
by Cody Lerum 02 Jul '04

02 Jul '04

DNS can sometimes give you a hint [my nets snipped] 4 t3-1-2-0.ar2.SEA1.gblx.net (64.211.206.113) 20.436 ms 18.309 ms 17.605 ms <------------DS3 5 so1-0-0-2488M.ar4.SEA1.gblx.net (67.17.71.210) 17.607 ms 16.982 ms 16.971 ms <-----OC-48 6 p3-3.IR1.Seattle-WA.us.xo.net (206.111.7.5) 17.864 ms 19.491 ms 17.181 ms 7 p5-1-0-3.RAR1.Seattle-WA.us.xo.net (65.106.0.197) 17.723 ms 17.632 ms 19.045 ms 8 65.106.0.50 (65.106.0.50) 38.133 ms 39.197 ms 49.961 ms MPLS Label=101549 CoS=0 TTL=1 S=1 9 p0-0-0d0.RAR1.SanJose-CA.us.xo.net (65.106.1.61) 37.669 ms 38.572 ms 36.517 ms 10 p7-0.DCR1.DC-SanJose-CA.us.xo.net (65.106.2.146) 37.830 ms 36.524 ms 37.743 ms 11 ge1-1.CDR2.DC-SanJose-CA.us.xo.net (209.220.168.10) 38.428 ms 38.050 ms 37.179 ms <-----Gig Ethernet 12 205.158.6.100.ptr.us.xo.net (205.158.6.100) 40.179 ms 39.784 ms 39.444 ms 13 x218.cd9e6c.sj.concentric.net (205.158.108.218) 39.188 ms 39.723 ms 39.895 ms However MPLS hidden hops may hide internal paths, and any connection may be limited to slower than its line rate, and dns entries may be old.... It's not publicly available at one source that I'm aware of, and if there is they don't have my info. -C ________________________________ From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Erik Amundson Sent: Thursday, July 01, 2004 6:10 PM To: nanog(a)merit.edu Cc: network.support(a)oati.net Subject: Peering point speed publicly available? NANOG, I have a question regarding information on my ISP's peering relationships. Are the speeds of some or all peering relationships public knowledge, and if so, where can I find this? By speed, I mean bandwidth (DS3, OC3, 100Mbps, 1Gbps, etc.). I am trying to transfer large stuff from my AS, through my ISP, through another ISP, to another AS, and I'm wondering how fast the peering point is between the ISPs. I'm working with my provider to get this information as we speak, but I'm wondering if it's available publicly anywhere. If it were, this could be one way to evaluate providers in the future, I guess... Erik Amundson A+, N+, CCNA, CCNP IT and Network Manager Open Access Technology Int'l, Inc. Phone (763) 201-2005 Fax (763) 553-2813 mailto:erik.amundson@oati.net

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RE: Peering point speed publicly available?
by Cody Lerum 02 Jul '04

02 Jul '04

Latency does have a impact on TCP transfers, now granted the difference between a oc-3 and oc-192 is negligible, but if you stack a lot of T1 connections back to back its going to be a factor in your max throughput across the path. (Stats below might not exactly be accurate...snipped from another site) DS3: (1500 bytes * 8 bits/byte) / 44040192 bits/sec = .27 ms (approx) DS1: (1500 bytes * 8 bits/byte) / 1572864 bits/sec = 8 ms (approx) DS0: (1500 bytes * 8 bits/byte) / 65536 bits/sec = 183 ms (approx) If you don't think it does then run some ftp transfers end to end with 1ms of delay, and with 100ms, 200ms, 500ms, 1000 ms I never said that .002 microseconds is going to have a noticeable difference, but those 10ms - 20ms hops starts to add up. As well as propagation delay as you stated. -C -----Original Message----- From: Richard A Steenbergen [mailto:ras@e-gerbil.net] Sent: Thursday, July 01, 2004 7:30 PM To: Cody Lerum Cc: Tony Li; erik(a)myevilempire.net; nanog(a)merit.edu; network.support(a)oati.net Subject: Re: Peering point speed publicly available? On Thu, Jul 01, 2004 at 07:05:51PM -0600, Cody Lerum wrote: > > Work with the network operators on each side of the link to determine > the speed/load. For the most part if they really want your business, > they will be able to provide something. Actually, many larger peering relationships come with contracts which explicitly forbid them from telling you any details about link capacity or utilization, or in some cases even acknowledging that peering exists. They might tell you anyways though. :) For the most part, it is hope for descriptive DNS or bust. For the most part, DNS is not descriptive (especially on peering links). :) > The main reason link speed maybe important to me would serialization > delay on the circuit. OC-768 should be much lower latency than a > T1...unless your are at the end of the queue :-) Once you get past 10Mbps, serialization delay is measured in fractions of a millisecond. This has absolutely no impact on TCP performance, compared to speed of light delays (like from oh say a 50ft patch cable). > Latency is probably be your primary concern for large TCP transfers > anyway. I think that you are very confused about how TCP works. > > 4 t3-1-2-0.ar2.SEA1.gblx.net (64.211.206.113) 20.436 ms 18.309 ms > > 17.605 ms <------------DS3 > > 5 so1-0-0-2488M.ar4.SEA1.gblx.net (67.17.71.210) 17.607 ms 16.982 > > ms 16.971 ms <-----OC-48 > > 6 p3-3.IR1.Seattle-WA.us.xo.net (206.111.7.5) 17.864 ms 19.491 ms > > 17.181 ms Name: p3-3.IR1.Seattle-WA.us.xo.net Address: 206.111.7.5 Name: 206.111.7.6.ptr.us.xo.net Address: 206.111.7.6 Sometimes you can find descriptive DNS on the other side of the PTR, and sometimes you find missing data. In this case, there is no speed description at all. The p3-3 interface indicates that this is a PoS interface, probably Cisco, and the IR designation on XO indicates a peering router. Educated hunch based on what the traffic levels between 3549 and 2828 in Seattle probably are... OC3? -- Richard A Steenbergen <ras(a)e-gerbil.net> http://www.e-gerbil.net/ras GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)

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RE: Peering point speed publicly available?
by Cody Lerum 02 Jul '04

02 Jul '04

Not to mention I have run across a few providers who skew their dns records to make their network look bigger/faster. Like I said it might get you a vague idea, but I wouldn’t place money on it. Just like GE might really be 10GE and FE might only be limited to 10Mbps. How often do you think IP's get moved around, and the DNS doesn't? -C -----Original Message----- From: Daniel Golding [mailto:dgolding@burtongroup.com] Sent: Thursday, July 01, 2004 8:02 PM To: Cody Lerum; erik(a)myevilempire.net; nanog(a)merit.edu Cc: network.support(a)oati.net Subject: Re: Peering point speed publicly available? Sometimes it can give a hint. However, if the ISPs are following the ³interface name² convention, you¹ll get something like P3-1-2, which just tells you its Packet Over SONET. That can mean anything from OC-3 to OC-192. ³ge² could mean 10 gige :) The "2488M" from glbx is nice, but not too common. It would be so nice if this were standardized between all providers. But naming conventions are really political - they sometimes provoke huge fights even within providers. -- Daniel Golding Network and Telecommunications Strategies Burton Group On 7/1/04 8:25 PM, "Cody Lerum" <clerum(a)transaria.com> wrote: > DNS can sometimes give you a hint > > [my nets snipped] > 4 t3-1-2-0.ar2.SEA1.gblx.net (64.211.206.113) 20.436 ms 18.309 ms 17.605 > ms <------------DS3 > 5 so1-0-0-2488M.ar4.SEA1.gblx.net (67.17.71.210) 17.607 ms 16.982 ms > 16.971 ms <-----OC-48 > 6 p3-3.IR1.Seattle-WA.us.xo.net (206.111.7.5) 17.864 ms 19.491 ms 17.181 > ms > 7 p5-1-0-3.RAR1.Seattle-WA.us.xo.net (65.106.0.197) 17.723 ms 17.632 ms > 19.045 ms > 8 65.106.0.50 (65.106.0.50) 38.133 ms 39.197 ms 49.961 ms MPLS > Label=101549 CoS=0 TTL=1 S=1 > 9 p0-0-0d0.RAR1.SanJose-CA.us.xo.net (65.106.1.61) 37.669 ms 38.572 ms > 36.517 ms > 10 p7-0.DCR1.DC-SanJose-CA.us.xo.net (65.106.2.146) 37.830 ms 36.524 ms > 37.743 ms > 11 ge1-1.CDR2.DC-SanJose-CA.us.xo.net (209.220.168.10) 38.428 ms 38.050 ms > 37.179 ms <-----Gig Ethernet > 12 205.158.6.100.ptr.us.xo.net (205.158.6.100) 40.179 ms 39.784 ms 39.444 > ms > 13 x218.cd9e6c.sj.concentric.net (205.158.108.218) 39.188 ms 39.723 ms > 39.895 ms > > However MPLS hidden hops may hide internal paths, and any connection may be > limited to slower than its line rate, and dns entries may be old.... > > It's not publicly available at one source that I'm aware of, and if there is > they don't have my info. > > -C > > From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Erik > Amundson > Sent: Thursday, July 01, 2004 6:10 PM > To: nanog(a)merit.edu > Cc: network.support(a)oati.net > Subject: Peering point speed publicly available? > > NANOG, > > I have a question regarding information on my ISP¹s peering relationships. > Are the speeds of some or all peering relationships public knowledge, and if > so, where can I find this? By speed, I mean bandwidth (DS3, OC3, 100Mbps, > 1Gbps, etc.). I am trying to transfer large stuff from my AS, through my ISP, > through another ISP, to another AS, and I¹m wondering how fast the peering > point is between the ISPs. I¹m working with my provider to get this > information as we speak, but I¹m wondering if it¹s available publicly > anywhere. If it were, this could be one way to evaluate providers in the > future, I guessŠ > > Erik Amundson > A+, N+, CCNA, CCNP > IT and Network Manager > Open Access Technology Int'l, Inc. > Phone (763) 201-2005 > Fax (763) 553-2813 > mailto:erik.amundson@oati.net > >

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RE: ARIN Comment
by Michel Py 02 Jul '04

02 Jul '04

> Patrick W Gilmore > Now it is clear from ARIN - who is supposedly in charge of > this stuff in "America" - that nothing is wrong with taking > months after your contract expires to number out of PA space, > and over a year to renumber into PI space once it is granted. Indeed, this encourages sloppy work. I predict a bunch of SLAs will be reviewed and redone soon, too. > Glad we have official clarification. Ditto. Michel.

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RE: ultradns reachability
by Cody Lerum 02 Jul '04

02 Jul '04

Well http://www.dnsstuff.com is showing it also (http://www.dnsstuff.com/tools/lookup.ch?name=mariners.org&type=A) How I am searching: Searching for A record for mariners.org at j.root-servers.net: Got referral to TLD2.ULTRADNS.NET. [took 93 ms] Searching for A record for mariners.org at TLD2.ULTRADNS.NET.: Timed out. Trying again. Searching for A record for mariners.org at TLD2.ULTRADNS.NET.: Timed out. Trying again. Searching for A record for mariners.org at TLD2.ULTRADNS.NET.: Timed out. Trying again. Searching for A record for mariners.org at TLD1.ULTRADNS.NET.: Timed out. Trying again. Searching for A record for mariners.org at TLD2.ULTRADNS.NET.: Got referral to NS2.DIGISLE.NET. [took 473 ms] Searching for A record for mariners.org at NS2.DIGISLE.NET.: Reports mariners.org. [took 49 ms] Answer: Domain Type Class TTL Answer mariners.org. A IN 3600 216.74.142.14 mariners.org. NS IN 3600 ns1.digisle.net. mariners.org. NS IN 3600 ns2.digisle.net. ns1.digisle.net. A IN 172800 167.216.250.42 ns2.digisle.net. A IN 172800 167.216.193.233 -C -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Matt Ghali Sent: Thursday, July 01, 2004 7:01 PM To: nanog(a)nanog.org Subject: ultradns reachability is anyone else seeing timeouts reaching ultradns' .org nameservers? I'm seeing seemingly random timeout failures from both sbci and uc berkeley.

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Companies that sell NEBS x86 servers
by james edwards 01 Jul '04

01 Jul '04

I have gotten quotes from alliancesystems & crystalpc for a x86 NEBS DC powered server. Can anyone suggest some other companies that sell x86 NEBS servers ? -- James H. Edwards Routing and Security At the Santa Fe Office: Internet at Cyber Mesa jamesh(a)cybermesa.com noc(a)cybermesa.com (505) 795-7101

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