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Multi-homing with Sprint
by Edward W. Ray 12 Mar '06

12 Mar '06

If this is not a proper topic, please respond off-list. I currently run a business out of my home which requires multiple VPNs. I currently have a 4xT1 (6 Mbps bonded) connection with a local ISP who peers with Cogent (AS 174), Global Crossing (AS 3549) and BTN (AS 3491). They used to peer with AT&T (AS 7018) and Level 3 (AS 3356) but much to my dismay they no longer peer with them. This has caused some occasional problems with my VPNs that happen to go thorough Cogent to get to their destination. I am expanding my business and will need more bandwidth soon. I have decided to Multi-home with another provider instead of adding more bandwidth with my current ISP. I narrowed my choices to UUNET (MCI), Sprint, AT&T and Level3. Of those four, Sprint seems to be the most reliable from info I have read, they have a local peer about 5 miles from my house, plus two of my heavier bandwidth VPN clients use Sprint and like them. Pricewise they are faily competitive (cheaper than AT&T and UUNET, more expensive than Level3). My thought was to use the /24 block I already have and get another 4xT1 with Sprint. If anyone has any experience with Sprint, good or bad, I would appreciate the feedback. Thanks in advance. Edward W. Ray CISSP, MCSE 2003+Security, P.E., SANS GCIA Gold, SANS GCIH Gold

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UDP Badness [Was: Re: How to measure network quality&performance for v oip&gameservers (udp packetloss, delay, jitter,...)]
by Fergie 11 Mar '06

11 Mar '06

The problem with UDP is that there is no explicit feedback-loop or congestion control frobs -- this is generally kicked up the protocol stack for the application itself to figure out. UDP is designed that way: push traffic into the network as fast as the network can take it, and expect the application to provide for delay/loss/adaptation of jitter, buffering, etc. So to answer your question, I think it really depends on how the application itself handles UDP traffic, adapts to any sort of RTT measurements, delay/jitter, etc. - ferg -- "Gunther Stammwitz" <gstammw(a)gmx.net> wrote: Hello colleages, I'm trying to find out how one can measure the performance or quality of a network for gamers and voip-users. Both applications are very sensitive to packetloss, delays or jitter since they're using udp instead of tcp and are very timing critical. ==> Which tools (under linux) are you using in order to measure your own network ore on of your upstreams in terms of "gameability" or voip-usage? Ordinary pings won't help since routers are regulary dropping them and even an end-to-end ping is not perfect since one of the hosts might be busy or something like that? Starting your favorite online game and play on a server that is being housed in your own network isn't the solutions I'm looking for :-( Your ideas are appreciated :-) Gunther -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(a)netzero.net or fergdawg(a)sbcglobal.net ferg's tech blog: http://fergdawg.blogspot.com/

11 18

Vancouver area power expert
by Eric Frazier 10 Mar '06

10 Mar '06

I need to find a third party who can help us figure out *what* is at fault, even more importantly than who. Please contact me off list for details. Thanks, Eric

1 0

How to measure network quality&performance for voip&gameservers (udp packetloss, delay, jitter,...)
by Gunther Stammwitz 10 Mar '06

10 Mar '06

Hello colleages, I'm trying to find out how one can measure the performance or quality of a network for gamers and voip-users. Both applications are very sensitive to packetloss, delays or jitter since they're using udp instead of tcp and are very timing critical. ==> Which tools (under linux) are you using in order to measure your own network ore on of your upstreams in terms of "gameability" or voip-usage? Ordinary pings won't help since routers are regulary dropping them and even an end-to-end ping is not perfect since one of the hosts might be busy or something like that? Starting your favorite online game and play on a server that is being housed in your own network isn't the solutions I'm looking for :-( Your ideas are appreciated :-) Gunther

4 3

Weekly Routing Table Report
by Routing Table Analysis 10 Mar '06

10 Mar '06

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 11 Mar, 2006 Analysis Summary ---------------- BGP routing table entries examined: 183843 Prefixes after maximum aggregation: 102032 Unique aggregates announced to Internet: 89541 Total ASes present in the Internet Routing Table: 21708 Origin-only ASes present in the Internet Routing Table: 18866 Origin ASes announcing only one prefix: 8972 Transit ASes present in the Internet Routing Table: 2842 Transit-only ASes present in the Internet Routing Table: 68 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 29 Prefixes from unregistered ASNs in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1509440352 Equivalent to 89 /8s, 248 /16s and 59 /24s Percentage of available address space announced: 40.7 Percentage of allocated address space announced: 60.1 Percentage of available address space allocated: 67.8 Total number of prefixes smaller than registry allocations: 89915 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38692 Total APNIC prefixes after maximum aggregation: 16317 Prefixes being announced from the APNIC address blocks: 36499 Unique aggregates announced from the APNIC address blocks: 17742 APNIC Region origin ASes present in the Internet Routing Table: 2494 APNIC Region origin ASes announcing only one prefix: 698 APNIC Region transit ASes present in the Internet Routing Table: 385 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 217100512 Equivalent to 12 /8s, 240 /16s and 176 /24s Percentage of available APNIC address space announced: 67.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 96344 Total ARIN prefixes after maximum aggregation: 56872 Prefixes being announced from the ARIN address blocks: 75588 Unique aggregates announced from the ARIN address blocks: 28793 ARIN Region origin ASes present in the Internet Routing Table: 10574 ARIN Region origin ASes announcing only one prefix: 3949 ARIN Region transit ASes present in the Internet Routing Table: 981 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 290693888 Equivalent to 17 /8s, 83 /16s and 163 /24s Percentage of available ARIN address space announced: 72.2 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 36461 Total RIPE prefixes after maximum aggregation: 24431 Prefixes being announced from the RIPE address blocks: 33483 Unique aggregates announced from the RIPE address blocks: 22608 RIPE Region origin ASes present in the Internet Routing Table: 7752 RIPE Region origin ASes announcing only one prefix: 4064 RIPE Region transit ASes present in the Internet Routing Table: 1291 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 241815424 Equivalent to 14 /8s, 105 /16s and 207 /24s Percentage of available RIPE address space announced: 72.1 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 RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 10305 Total LACNIC prefixes after maximum aggregation: 3524 Prefixes being announced from the LACNIC address blocks: 8467 Unique aggregates announced from the LACNIC address blocks: 5146 LACNIC Region origin ASes present in the Internet Routing Table: 677 LACNIC Region origin ASes announcing only one prefix: 219 LACNIC Region transit ASes present in the Internet Routing Table: 123 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 29 Number of LACNIC addresses announced to Internet: 25835008 Equivalent to 1 /8s, 138 /16s and 54 /24s Percentage of available LACNIC address space announced: 38.5 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1960 Total AfriNIC prefixes after maximum aggregation: 888 Prefixes being announced from the AfriNIC address blocks: 1311 Unique aggregates announced from the AfriNIC address blocks: 911 AfriNIC Region origin ASes present in the Internet Routing Table: 146 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 23 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 3795712 Equivalent to 0 /8s, 57 /16s and 235 /24s Percentage of available AfriNIC address space announced: 11.3 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 988 6928 208 CHINANET-BACKBONE 4755 874 258 71 Videsh Sanchar Nigam Ltd. Aut 9583 866 109 16 Sify Limited 4766 676 3924 300 Korea Telecom (KIX) 1221 651 1428 469 Telstra Pty Ltd 9498 558 211 71 BHARTI BT INTERNET LTD. 7545 519 108 70 TPG Internet Pty Ltd 17488 516 31 7 Hathway IP Over Cable Interne 17676 484 6997 107 Softbank BB Corp. 9443 414 95 82 Primus Telecommunications 4802 371 75 166 Wantree Development 2907 334 1748 312 SINET Japan 18101 332 68 23 Reliance Infocom Ltd Internet 17974 330 77 40 PT TELEKOMUNIKASI INDONESIA 9929 326 216 53 China Netcom Corp. 17557 319 25 163 Pakistan Telecom 17849 315 20 104 Telecommunications Technology 7474 303 211 230 SingTel Optus Pty Ltd 4780 281 226 16 Digital United Inc. 9837 273 78 169 Powertel Ltd ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1500 6248 963 AT&T WorldNet Services 4323 1229 711 235 Time Warner Telecom 721 1010 21946 307 DLA Systems Automation Center 6197 1002 617 467 BellSouth Network Solutions, 174 974 5784 919 Cogent Communications 701 948 8064 784 UUNET Technologies, Inc. 18566 918 272 8 Covad Communications 2386 869 520 661 AT&T Data Communications Serv 1239 855 2790 603 Sprint 19029 777 152 113 New Edge Networks 209 697 3608 542 Qwest 20115 669 585 361 Charter Communications 19262 661 1933 155 Verizon Global Networks 22773 639 1480 40 Cox Communications, Inc. 11492 636 86 20 Cable One 7011 597 208 387 Citizens Utilities 6198 584 502 238 BellSouth Network Solutions, 852 576 1088 383 Telus Advanced Communications 855 566 244 64 Canadian Research Network 19916 563 49 54 OLM LLC RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 581 1951 457 UUNET - Commercial IP service 3301 306 1071 291 TeliaNet Sweden 3352 306 1548 32 Ibernet, Internet Access Netw 8220 289 475 268 COLT Telecommunications 3320 279 3477 232 Deutsche Telekom AG 680 244 2025 241 DFN-IP service G-WiN 3246 230 488 220 Song Networks 6746 224 88 196 Dynamic Network Technologies, 8708 219 274 202 Romania Data Systems S.A. 1257 204 712 173 SWIPnet Swedish IP Network 8551 202 197 24 Bezeq International 3269 191 2037 73 TELECOM ITALIA 3215 182 1502 87 France Telecom Transpac 5515 177 839 124 Sonera Solution Autonomous Sy 24863 176 40 9 LINKdotNET AS number 786 174 1795 174 The JANET IP Service 5400 167 328 136 BT Ignite European Backbone 8866 167 37 13 Bulgarian Telecommunication C 6830 166 765 35 UPC Distribution Services 3300 163 170 91 AUCS Communications Services LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 582 1050 228 UniNet S.A. de C.V. 22047 383 142 10 VTR PUNTO NET S.A. 11172 311 111 82 Servicios Alestra S.A de C.V 16814 290 18 7 NSS, S.A. 14117 184 11 6 Telefonica del Sur S.A. 7303 159 75 20 Telecom Argentina Stet-France 6147 154 126 22 Telefonica Del Peru 11556 131 80 4 Cable-Wireless Panama 6503 123 149 76 AVANTEL, S.A. 19169 123 8 30 Telconet 5639 122 12 9 Telecommunications Services o 10481 121 48 8 Prima S.A. 21826 120 16 19 INTERCABLE 6505 106 88 78 Global One Communicaoes Ltda 23216 101 20 7 RAMtelecom Telecomunicaciones 18822 99 8 10 TELEFONICA MANQUEHUE 14522 98 12 8 SatNet S.A. 25620 97 6 3 COTAS LTDA 7315 96 6 3 Grupo Rey Moreno 19429 95 52 42 E.T.B. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 278 819 234 The Internet Solution 8452 163 60 7 TEDATA 15475 123 84 4 Nile Online 2018 122 298 103 Tertiary Education Network 5536 122 8 18 Internet Egypt Network 6713 106 103 12 Itissalat Al-MAGHRIB 2905 74 155 67 The Internetworking Company o 24835 62 50 7 RAYA Telecom - Egypt 20928 58 16 2 Noor Advanced Technologies AS 5713 39 294 35 Telkom SA Ltd 15706 31 8 3 Sudatel Internet Exchange Aut 33774 30 7 21 AS Number for Telecom Algeria 12455 26 6 3 Jambonet Autonomous system 23889 26 8 11 MAURITIUS TELECOM 8524 25 1 4 AUCEGYPT Autonomous System 16637 23 10 21 Johnnic e-Ventures 10798 22 1 13 Standard Bank of South Africa 21280 22 4 4 Swift Global Kenya Ltd.Is an 8346 20 13 17 SONATEL-AS Autonomous System 2561 19 6 2 Egyptian Universities Network Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1229 994 Time Warner Telecom 18566 918 910 Covad Communications 9583 866 850 Sify Limited 4755 874 803 Videsh Sanchar Nigam Ltd. Aut 4134 988 780 CHINANET-BACKBONE 721 1010 703 DLA Systems Automation Center 19029 777 664 New Edge Networks 11492 636 616 Cable One 22773 639 599 Cox Communications, Inc. 6197 1002 535 BellSouth Network Solutions, 19916 563 509 OLM LLC 17488 516 509 Hathway IP Over Cable Interne 19262 661 506 Verizon Global Networks 855 566 502 Canadian Research Network 5668 520 495 CenturyTel Internet Holdings, 9498 558 487 BHARTI BT INTERNET LTD. 7757 471 452 AT&T Broadband 7545 519 449 TPG Internet Pty Ltd 3602 531 422 Sprint Canada, Inc. 812 438 410 Rogers WAVE List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65211 PRIVATE 61.139.76.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 61.139.77.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 61.188.9.0/27 4134 CHINANET-BACKBONE 65211 PRIVATE 61.188.176.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 61.188.177.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 61.188.178.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 61.188.179.0/24 4134 CHINANET-BACKBONE 35650 UNALLOCATED 87.117.64.0/18 16238 AS for Coulomb 65211 PRIVATE 125.64.0.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.1.0/27 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.2.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.3.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.12.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.13.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.14.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.15.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.25.0/25 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.25.128/25 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.30.0/23 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.32.0/21 4134 CHINANET-BACKBONE 65211 PRIVATE 125.64.40.0/26 4134 CHINANET-BACKBONE 65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt 65211 PRIVATE 202.98.123.0/24 4134 CHINANET-BACKBONE 65505 PRIVATE 206.252.200.192/27 8002 Stealth Communicatio 65518 PRIVATE 211.144.192.0/19 24421 * 65211 PRIVATE 218.6.168.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.169.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.170.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.171.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.172.0/25 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.172.128/25 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.173.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.174.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.175.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.196.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.197.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.6.198.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.166.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.167.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.168.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.169.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.170.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.171.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 218.89.172.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.0.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.1.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.2.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.3.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.4.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.5.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.6.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.7.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.8.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.9.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.10.0/27 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.11.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.12.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.13.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.14.0/23 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.17.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.18.0/23 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.20.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.21.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.22.0/25 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.22.128/26 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.22.192/26 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.23.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.24.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.25.0/25 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.25.128/25 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.26.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.27.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.28.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 221.236.29.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 222.211.63.0/24 4134 CHINANET-BACKBONE 65211 PRIVATE 222.213.0.0/24 4134 CHINANET-BACKBONE Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.172.0.0/19 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:9 /10:8 /11:25 /12:87 /13:197 /14:351 /15:693 /16:8730 /17:3106 /18:5128 /19:11389 /20:12709 /21:10937 /22:14071 /23:15235 /24:100174 /25:365 /26:242 /27:214 /28:66 /29:24 /30:33 /31:0 /32:32 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 901 918 Covad Communications 6197 793 1002 BellSouth Network Solutions, 7018 790 1500 AT&T WorldNet Services 19029 705 777 New Edge Networks 9583 685 866 Sify Limited 11492 627 636 Cable One 2386 594 869 AT&T Data Communications Serv 4323 594 1229 Time Warner Telecom 19916 557 563 OLM LLC 7011 511 597 Citizens Utilities 4766 485 676 Korea Telecom (KIX) 7757 453 471 AT&T Broadband 6198 444 584 BellSouth Network Solutions, 855 440 566 Canadian Research Network 5668 402 520 CenturyTel Internet Holdings, 1239 376 855 Sprint 702 365 581 UUNET - Commercial IP service 15270 352 382 PaeTec.net -a division of Pae 6517 342 371 Yipes Communications, Inc. 22773 335 639 Cox Communications, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 8:38 12:1626 13:1 15:12 16:3 17:3 18:4 20:43 24:865 25:1 30:2 32:66 38:205 40:54 44:3 47:6 52:4 55:1 56:3 57:33 58:121 59:172 60:187 61:825 62:782 63:1898 64:3115 65:2221 66:3079 67:608 68:678 69:1440 70:308 71:59 72:642 73:23 74:22 80:763 81:616 82:526 83:380 84:337 85:463 86:372 87:233 88:33 89:64 124:185 125:278 128:152 129:173 130:102 131:319 132:31 133:8 134:146 135:47 136:174 137:65 138:192 139:73 140:485 141:134 142:414 143:147 144:226 145:39 146:310 147:134 148:336 149:184 150:112 151:78 152:62 153:102 154:6 155:194 156:94 157:121 158:164 159:165 160:87 161:70 162:231 163:144 164:179 165:171 166:147 167:238 168:485 169:140 170:322 171:12 172:1 190:37 192:5764 193:3413 194:2527 195:1781 196:773 198:3893 199:3260 200:4211 201:616 202:6531 203:6894 204:3925 205:2086 206:2424 207:2923 208:2020 209:3751 210:1955 211:821 212:1242 213:1478 214:341 215:42 216:4113 217:1162 218:254 219:142 220:642 221:372 222:159 End of report

1 0

Honest Cogent opinions without rhetoric.
by Drew Weaver 10 Mar '06

10 Mar '06

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. Thank you for your time. -Drew

13 16

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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