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it was damp in belleview
by Randy Bush 24 Jun '07

24 Jun '07

the network at the belleview meeting was fantastic, thanks to the host, xkl, and the usual suspects (merit, tony, ...). but there was one outage. as best i know, that outage was caused by one of the two upstream transit isps bouncing (at least) the nanog prefix on one of their routers far over the water in seattle. of course, that is why we had two upstreams. but, flap amplification and dear old route flap damping caused our prefix to be damped by a number of global isps. yes, our prefix, not just the path. for those who want to read up on route flap damping and why this caused problems, please see <http://www.nanog.org/mtg-0210/flap.html> "Route Flap Damping: Harmful?" from the 2002 nanog eugene meeting. for those wishing historical perspective on route flap damping, document ripe-378 (may 2006) says 1.1 Background In the early 1990s the accelerating growth in the number of prefixes being announced to the Internet (often due to inadequate prefix-aggregation), the denser meshing through multiple inter-provider paths, and increased instabilities started to cause significant impact on the performance and efficiency of the Internet backbone routers. Every time a routing prefix became unreachable because of a single line-flap, the withdrawal was advertised to the whole core Internet and handled by every single router that carried the full Internet routing table. It was soon realized that the increasing routing churn created significant processing load on routing engines, sometimes sufficiently high load to cause router crashes. To overcome this situation RFD was developed in 1993 and has since been integrated into most router BGP software implementations. RFD is described in detail in RFC 2439. RFD is now used in many service provider networks in the Internet. for reasons described in the 2002 preso cited above, and demonstrated by the network outage in belleview, ripe-378 goes on to conclude 4.0 Recommendation This Routing Working Group document proposes that with the current implementations of BGP flap damping, the application of flap damping in ISP networks is NOT recommended. The recommendations given in ripe-229 and previous documents [2] are considered obsolete henceforth. i.e., it's time to turn it off. you are damaging your customers and others' customers. randy

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Re: TransAtlantic Cable Break
by Keith 24 Jun '07

24 Jun '07

> However, if you put 15G down your "20G" path, you have no redundancy. > In a cut, dropping 5G on the floor, causing 33% packet loss is not > "up", it might as well be down. > > If your redundancy solution is at Layer 3, you have to have the > policies in place that you don't run much over 10G across your dual > 10G links or you're back to effectively giving up all redundancy. This can be a valid solution. Our company has some multimedia traffic that can be axed if a catastrophe befalls our tubes. Obviously we'd prefer not to drop (or ax, as it were) any type of traffic, but it's a monetary decision.

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RE: TransAtlantic Cable Break
by W.D.McKinney 23 Jun '07

23 Jun '07

_____ From: Rod Beck [mailto:Rod.Beck@hiberniaatlantic.com] To: Sean Donelan [mailto:sean@donelan.com], Hank Nussbacher [mailto:hank@efes.iucc.ac.il] Cc: nanog [mailto:nanog@merit.edu] Sent: Fri, 22 Jun 2007 10:14:20 -0800 Subject: RE: TransAtlantic Cable Break Protected 10 gig waves NYC/London are extremely expensive. Say $60K or more per month. Not bad as DS3's between Alaska & Seattle used to cost that much. -Dee So it usually makes sense for the Layer 3 guys to lease diversely routed 10 gig waves and do the protection themselves using MPLS or load balancing or some other protocol about which I know little ... Roderick S. Beck Hibernia Atlantic 1 Passage du Chantier, 75012 Paris http://www.hiberniaatlantic.com Wireless: 1-212-444-8829. Landline: 33-1-4346-3209 rod.beck(a)hiberniaatlantic.com rodbeck(a)erols.com ``Unthinking respect for authority is the greatest enemy of truth.'' Albert Einstein. -----Original Message----- From: owner-nanog(a)merit.edu on behalf of Sean Donelan Sent: Fri 6/22/2007 4:56 PM To: Hank Nussbacher Cc: nanog Subject: Re: TransAtlantic Cable Break On Fri, 22 Jun 2007, Hank Nussbacher wrote: >> Tell that to the 10 gig wave customers who lost service. Very few cable >> systems provide protection at the 10 gig wave level. > > If you don't pay the extra amount for a protected circuit, why should your > circuit get protection for free when others have to pay for it? Now, if > there are 10G customers with protected circuits who lost service, then > hopefully they have in their contract hefty penalty clauses against the > carrier. If not, then they are just plain stupid. Is paying for "protected circuits" actually worth it. Or are you better off just buying two circuits and using both during normal conditions. Use switching at layer 3 to the remaining circuit during abnormal conditions. Most of the time, you get twice the capacity for only twice the price instead of a "protected circuit" where you only get the once the capacity for twice the price. Of course, there is still the problem some facility provider will "groom" both your circuits on to the same cable. If you are buying pre-emptable circuits, hopefully you understand what that means.

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Re: TransAtlantic Cable Break
by Frank Coluccio 23 Jun '07

23 Jun '07

To clarify my last post, and to partly correct it, I was referring to VZ's new TPE China cable, where I mentioned pending pricing and T&C information. Of course, VZ already meshes its IP backbones, as a matter of course today, in existing systems. Frank A. Coluccio DTI Consulting Inc. 212-587-8150 Office 347-526-6788 Mobile On Fri Jun 22 23:59 , Frank Coluccio sent: > >Interestingly, some major transoceanic undertakings have begun looking very >favorably towards a meshed topology solution, eschewing rings. Verizon is >championing this approach at the present time as a consortium partner in the >Trans-Pacific Express (TPE) cable laying venture to China, and offers >justifications for doing so in several interviews and PPT prezos I've come >across. Makes sense. From: http://preview.tinyurl.com/yqcrzm > >May 2007 Issue of Lightwave Magazine > > >"Last year, Verizon also took steps to improve the reliability of the >transatlantic portion of its global IP network. In the past, traffic moved across >the Atlantic over SONET rings, which provided redundant paths. However, such >architecture only protects against a single failure in a given ring. A failure or >service interruption on two or more segments of the same network required the >deployment of a cable ship-the nautical equivalent of the truck roll-to restore >service. Today, Verizon Business operates a mesh network, using Ciena >CoreDirectors (www.ciena.com) to move traffic between six diverse paths that can >be routed onto other undersea networks in the event of a network failure." > > >Of course, these offerings are still being "productized," so it remains to be >seen what terms and conditions they carry, and how they will be priced. > >Frank >== > >On Fri Jun 22 11:56 , Sean Donelan sent: > >> >>On Fri, 22 Jun 2007, Hank Nussbacher wrote: >>>> Tell that to the 10 gig wave customers who lost service. Very few cable >>>> systems provide protection at the 10 gig wave level. >>> >>> If you don't pay the extra amount for a protected circuit, why should your >>> circuit get protection for free when others have to pay for it? Now, if >>> there are 10G customers with protected circuits who lost service, then >>> hopefully they have in their contract hefty penalty clauses against the >>> carrier. If not, then they are just plain stupid. >> >>Is paying for "protected circuits" actually worth it. Or are you better >>off just buying two circuits and using both during normal conditions. >>Use switching at layer 3 to the remaining circuit during abnormal >>conditions. Most of the time, you get twice the capacity for only twice >>the price instead of a "protected circuit" where you only get the once >>the capacity for twice the price. >> >>Of course, there is still the problem some facility provider will "groom" >>both your circuits on to the same cable. If you are buying pre-emptable >>circuits, hopefully you understand what that means. >> >> >> > >

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Re: TransAtlantic Cable Break
by Frank Coluccio 23 Jun '07

23 Jun '07

Interestingly, some major transoceanic undertakings have begun looking very favorably towards a meshed topology solution, eschewing rings. Verizon is championing this approach at the present time as a consortium partner in the Trans-Pacific Express (TPE) cable laying venture to China, and offers justifications for doing so in several interviews and PPT prezos I've come across. Makes sense. From: http://preview.tinyurl.com/yqcrzm Article "Verizon Business plots business plan for ’07 and beyond" May 2007 Issue of Lightwave Magazine <snip> "Last year, Verizon also took steps to improve the reliability of the transatlantic portion of its global IP network. In the past, traffic moved across the Atlantic over SONET rings, which provided redundant paths. However, such architecture only protects against a single failure in a given ring. A failure or service interruption on two or more segments of the same network required the deployment of a cable ship-the nautical equivalent of the truck roll-to restore service. Today, Verizon Business operates a mesh network, using Ciena CoreDirectors (www.ciena.com) to move traffic between six diverse paths that can be routed onto other undersea networks in the event of a network failure." <snip> Of course, these offerings are still being "productized," so it remains to be seen what terms and conditions they carry, and how they will be priced. Frank == On Fri Jun 22 11:56 , Sean Donelan sent: > >On Fri, 22 Jun 2007, Hank Nussbacher wrote: >>> Tell that to the 10 gig wave customers who lost service. Very few cable >>> systems provide protection at the 10 gig wave level. >> >> If you don't pay the extra amount for a protected circuit, why should your >> circuit get protection for free when others have to pay for it? Now, if >> there are 10G customers with protected circuits who lost service, then >> hopefully they have in their contract hefty penalty clauses against the >> carrier. If not, then they are just plain stupid. > >Is paying for "protected circuits" actually worth it. Or are you better >off just buying two circuits and using both during normal conditions. >Use switching at layer 3 to the remaining circuit during abnormal >conditions. Most of the time, you get twice the capacity for only twice >the price instead of a "protected circuit" where you only get the once >the capacity for twice the price. > >Of course, there is still the problem some facility provider will "groom" >both your circuits on to the same cable. If you are buying pre-emptable >circuits, hopefully you understand what that means. > > >

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Re: TransAtlantic Cable Break
by George William Herbert 22 Jun '07

22 Jun '07

>Is paying for "protected circuits" actually worth it. Or are you better >off just buying two circuits and using both during normal conditions. >Use switching at layer 3 to the remaining circuit during abnormal >conditions. Most of the time, you get twice the capacity for only twice >the price instead of a "protected circuit" where you only get the once >the capacity for twice the price. > >Of course, there is still the problem some facility provider will "groom" >both your circuits on to the same cable. If you are buying pre-emptable >circuits, hopefully you understand what that means. I've seen diverse protected circuits groomed, onto the same fiber bundle. One backhoe hit took out the first half of the cable, but the digger realized he goofed and stopped. The fiber company then cut the rest of the bundle to cleanly fix the cut... without warning anyone who was running on their failover protected circuit that something might be about to happen. Major collaboration vendor outage root-caused to that one... -george william herbert gherbert(a)retro.com

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Weekly Routing Table Report
by Routing Analysis Role Account 22 Jun '07

22 Jun '07

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 For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 23 Jun, 2007 Report Website: http://thyme.apnic.net This report: http://thyme.apnic.net/ap-data/2007/06/23/0400 Analysis Summary ---------------- BGP routing table entries examined: 223924 Prefixes after maximum aggregation: 118158 Deaggregation factor: 1.90 Unique aggregates announced to Internet: 108766 Total ASes present in the Internet Routing Table: 25503 Prefixes per ASN: 8.78 Origin-only ASes present in the Internet Routing Table: 22191 Origin ASes announcing only one prefix: 10772 Transit ASes present in the Internet Routing Table: 3312 Transit-only ASes present in the Internet Routing Table: 77 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 22 Max AS path prepend of ASN (41497) 13 Prefixes from unregistered ASNs in the Routing Table: 4 Unregistered ASNs in the Routing Table: 8 Prefixes from 32-bit ASNs in the Routing Table: 4 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1725064544 Equivalent to 102 /8s, 210 /16s and 101 /24s Percentage of available address space announced: 46.5 Percentage of allocated address space announced: 61.7 Percentage of available address space allocated: 75.5 Total number of prefixes smaller than registry allocations: 117585 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 52408 Total APNIC prefixes after maximum aggregation: 20509 APNIC Deaggregation factor: 2.56 Prefixes being announced from the APNIC address blocks: 49331 Unique aggregates announced from the APNIC address blocks: 21648 APNIC Region origin ASes present in the Internet Routing Table: 2982 APNIC Prefixes per ASN: 16.54 APNIC Region origin ASes announcing only one prefix: 802 APNIC Region transit ASes present in the Internet Routing Table: 454 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 300576416 Equivalent to 17 /8s, 234 /16s and 110 /24s Percentage of available APNIC address space announced: 74.5 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, 116/6, 120/6, 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: 106951 Total ARIN prefixes after maximum aggregation: 62141 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 78637 Unique aggregates announced from the ARIN address blocks: 31120 ARIN Region origin ASes present in the Internet Routing Table: 11639 ARIN Prefixes per ASN: 6.76 ARIN Region origin ASes announcing only one prefix: 4472 ARIN Region transit ASes present in the Internet Routing Table: 1070 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 336997248 Equivalent to 20 /8s, 22 /16s and 43 /24s Percentage of available ARIN address space announced: 74.4 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 47033 Total RIPE prefixes after maximum aggregation: 30246 RIPE Deaggregation factor: 1.56 Prefixes being announced from the RIPE address blocks: 43460 Unique aggregates announced from the RIPE address blocks: 28715 RIPE Region origin ASes present in the Internet Routing Table: 9806 RIPE Prefixes per ASN: 4.43 RIPE Region origin ASes announcing only one prefix: 5188 RIPE Region transit ASes present in the Internet Routing Table: 1573 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 22 Number of RIPE addresses announced to Internet: 317645824 Equivalent to 18 /8s, 238 /16s and 228 /24s Percentage of available RIPE address space announced: 78.9 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-44031 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 15002 Total LACNIC prefixes after maximum aggregation: 4249 LACNIC Deaggregation factor: 3.53 Prefixes being announced from the LACNIC address blocks: 13042 Unique aggregates announced from the LACNIC address blocks: 7379 LACNIC Region origin ASes present in the Internet Routing Table: 808 LACNIC Prefixes per ASN: 16.14 LACNIC Region origin ASes announcing only one prefix: 254 LACNIC Region transit ASes present in the Internet Routing Table: 141 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 39278592 Equivalent to 2 /8s, 87 /16s and 88 /24s Percentage of available LACNIC address space announced: 58.5 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: 2523 Total AfriNIC prefixes after maximum aggregation: 1005 AfriNIC Deaggregation factor: 2.51 Prefixes being announced from the AfriNIC address blocks: 1997 Unique aggregates announced from the AfriNIC address blocks: 1216 AfriNIC Region origin ASes present in the Internet Routing Table: 190 AfriNIC Prefixes per ASN: 10.51 AfriNIC Region origin ASes announcing only one prefix: 56 AfriNIC Region transit ASes present in the Internet Routing Table: 36 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 6180608 Equivalent to 0 /8s, 94 /16s and 79 /24s Percentage of available AfriNIC address space announced: 18.4 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 1295 10021 281 CHINANET-BACKBONE 4755 1237 382 72 Videsh Sanchar Nigam Ltd. Aut 9583 1104 79 396 Sify Limited 9498 999 469 66 BHARTI BT INTERNET LTD. 4766 788 4943 312 Korea Telecom (KIX) 23577 778 35 704 Korea Telecom (ATM-MPLS) 17488 704 46 41 Hathway IP Over Cable Interne 7545 668 149 107 TPG Internet Pty Ltd 18101 559 117 35 Reliance Infocom Ltd Internet 1221 548 1954 423 Telstra Pty Ltd 4668 508 68 10 LG-EDS Systems Inc. 17676 504 10935 65 Softbank BB Corp. 4812 469 882 87 China Telecom (Shanghai) 9443 467 121 77 Primus Telecommunications 7474 412 218 270 SingTel Optus Pty Ltd 4802 409 88 149 Wantree Development 17974 371 129 12 PT TELEKOMUNIKASI INDONESIA 4808 366 668 114 CNCGROUP IP network: China169 2907 362 1700 301 SINET Japan 9829 362 258 14 BSNL National Internet Backbo ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1475 6101 978 AT&T WorldNet Services 4323 1308 1042 367 Time Warner Telecom 2386 1205 615 754 AT&T Data Communications Serv 6478 1115 365 146 AT&T Worldnet Services 11492 1091 107 23 Cable One 6197 1025 716 509 BellSouth Network Solutions, 18566 1010 288 9 Covad Communications 174 956 6778 868 Cogent Communications 701 955 6597 726 UUNET Technologies, Inc. 7011 845 250 535 Citizens Utilities 1239 811 2736 580 Sprint 20115 799 730 425 Charter Communications 19262 776 2705 203 Verizon Global Networks 209 752 3854 580 Qwest 22773 726 1892 44 Cox Communications, Inc. 5668 614 169 20 CenturyTel Internet Holdings, 7029 600 488 80 Alltel Information Services, 852 581 1089 365 Telus Advanced Communications 855 575 254 73 Canadian Research Network 19916 568 49 51 OLM LLC RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2119 514 1075 136 Telenor Internet Access 702 510 1938 402 UUNET - Commercial IP service 24863 351 56 35 LINKdotNET AS number 3307 322 180 43 BaneTele AS (formerly Enitel) 3301 310 1455 290 TeliaNet Sweden 3320 306 6034 257 Deutsche Telekom AG 6746 280 129 256 Dynamic Network Technologies, 680 264 2044 255 DFN-IP service G-WiN 3215 250 2320 93 France Telecom Transpac 8220 250 444 242 COLT Telecommunications 8708 235 415 228 Romania Data Systems S.A. 8551 223 213 28 Bezeq International 5089 221 1658 53 NTL Group Limited 3269 218 2679 75 TELECOM ITALIA 3352 216 1848 43 Ibernet, Internet Access Netw 9121 209 1441 24 TTnet Autonomous System 9116 199 136 25 Goldenlines main autonomous s 1257 197 1196 175 SWIPnet Swedish IP Network 3246 194 329 184 Song Networks 12479 188 578 6 Uni2 Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 850 1918 209 UniNet S.A. de C.V. 11830 483 299 9 Instituto Costarricense de El 11172 371 116 64 Servicios Alestra S.A de C.V 16814 361 22 8 NSS, S.A. 22047 313 238 12 VTR PUNTO NET S.A. 7303 296 144 31 Telecom Argentina Stet-France 6471 275 74 33 ENTEL CHILE S.A. 14117 255 19 15 Telefonica del Sur S.A. 11556 231 128 4 Cable-Wireless Panama 6147 224 170 26 Telefonica Del Peru 6503 212 188 84 AVANTEL, S.A. 10620 208 59 14 TVCABLE BOGOTA 23216 186 19 42 RAMtelecom Telecomunicaciones 10481 181 72 8 Prima S.A. 14522 170 27 8 SatNet S.A. 21826 157 27 59 INTERCABLE 19169 153 10 31 Telconet 20299 150 23 12 NEWCOM AMERICAS 7738 146 474 22 Telecomunicacoes da Bahia S.A 14571 138 33 4 Internet Group do Brasil AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 280 867 221 The Internet Solution 8452 214 188 7 TEDATA 6713 142 135 11 Itissalat Al-MAGHRIB 2018 136 301 111 Tertiary Education Network 5536 123 8 15 Internet Egypt Network 33783 119 8 9 EEPAD TISP TELECOM & INTERNET 24835 85 48 6 RAYA Telecom - Egypt 2905 77 174 73 The Internetworking Company o 15475 74 84 4 Nile Online 2561 62 6 2 Egyptian Universities Network 15706 56 12 4 Sudatel Internet Exchange Aut 23889 48 16 13 MAURITIUS TELECOM 5713 44 294 34 Telkom SA Ltd 33774 43 29 24 AS Number for Telecom Algeria 16637 37 21 29 Johnnic e-Ventures 33776 36 2 2 Starcomms Nigeria Limited 8524 32 2 8 AUCEGYPT Autonomous System 12455 32 6 3 Jambonet Autonomous system 21280 27 4 4 Swift Global Kenya Ltd.Is an 10798 24 2 15 Standard Bank of South Africa Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1237 1165 Videsh Sanchar Nigam Ltd. Aut 11492 1091 1068 Cable One 4134 1295 1014 CHINANET-BACKBONE 18566 1010 1001 Covad Communications 6478 1115 969 AT&T Worldnet Services 4323 1308 941 Time Warner Telecom 9498 999 933 BHARTI BT INTERNET LTD. 9583 1104 708 Sify Limited 22773 726 682 Cox Communications, Inc. 17488 704 663 Hathway IP Over Cable Interne 8151 850 641 UniNet S.A. de C.V. 5668 614 594 CenturyTel Internet Holdings, 19262 776 573 Verizon Global Networks 7545 668 561 TPG Internet Pty Ltd 18101 559 524 Reliance Infocom Ltd Internet 7029 600 520 Alltel Information Services, 19916 568 517 OLM LLC 6197 1025 516 BellSouth Network Solutions, 6517 547 514 Yipes Communications, Inc. 15270 548 513 PaeTec.net -a division of Pae List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65332 PRIVATE 63.166.106.192/27 1803 SPRINT 65535 PRIVATE 200.62.98.0/24 7137 TELEMATIX/ ENITEL 24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE 22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 7.1.1.0/24 1239 Sprint 94.110.196.0/24 21161 Bechtle Autonomous System 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 172.33.1.0/24 7018 AT&T WorldNet Services 192.0.10.0/24 9498 BHARTI BT INTERNET LTD. 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 192.153.136.0/21 721 DLA Systems Automation Center 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 /10:15 /11:35 /12:125 /13:247 /14:462 /15:891 /16:9483 /17:4004 /18:6465 /19:13655 /20:15789 /21:14177 /22:18546 /23:19620 /24:118020 /25:800 /26:982 /27:477 /28:67 /29:10 /30:14 /31:0 /32:13 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6478 1105 1115 AT&T Worldnet Services 11492 1082 1091 Cable One 18566 992 1010 Covad Communications 9583 946 1104 Sify Limited 2386 903 1205 AT&T Data Communications Serv 7018 793 1475 AT&T WorldNet Services 6197 777 1025 BellSouth Network Solutions, 23577 764 778 Korea Telecom (ATM-MPLS) 7011 746 845 Citizens Utilities 9498 670 999 BHARTI BT INTERNET LTD. 4755 637 1237 Videsh Sanchar Nigam Ltd. Aut 4766 594 788 Korea Telecom (KIX) 19916 563 568 OLM LLC 4323 545 1308 Time Warner Telecom 17488 527 704 Hathway IP Over Cable Interne 6517 515 547 Yipes Communications, Inc. 15270 515 548 PaeTec.net -a division of Pae 4668 498 508 LG-EDS Systems Inc. 5668 479 614 CenturyTel Internet Holdings, 18101 475 559 Reliance Infocom Ltd Internet Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 7:1 8:82 9:1 12:1813 15:18 16:3 17:3 18:11 20:38 24:934 25:1 32:52 33:2 38:325 40:61 41:169 44:2 47:5 52:4 55:3 56:3 57:24 58:417 59:402 60:310 61:986 62:878 63:1975 64:3125 65:2362 66:3272 67:746 68:637 69:1889 70:430 71:112 72:1321 73:1 74:528 75:261 76:65 77:245 78:2 80:816 81:812 82:665 83:390 84:415 85:929 86:340 87:477 88:287 89:859 90:7 91:373 94:1 97:6 98:3 116:194 117:57 121:205 122:553 123:117 124:856 125:945 128:286 129:224 130:128 131:367 132:53 133:9 134:193 135:39 136:184 137:81 138:142 139:72 140:478 141:172 142:373 143:241 144:297 145:43 146:320 147:119 148:402 149:146 150:115 151:158 152:93 153:126 154:4 155:253 156:152 157:196 158:158 159:158 160:106 161:88 162:227 163:183 164:447 165:406 166:294 167:287 168:512 169:119 170:401 171:16 172:1 189:58 190:590 192:5765 193:3894 194:3189 195:2312 196:915 198:3832 199:3289 200:4825 201:1070 202:7403 203:7542 204:3967 205:2028 206:2414 207:2817 208:2694 209:3511 210:2483 211:960 212:1307 213:1493 214:407 215:40 216:3984 217:1149 218:350 219:383 220:973 221:412 222:261 End of report

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Anyone else using Global Crossing for transit having an unusually high amount of problems today?
by Drew Weaver 22 Jun '07

22 Jun '07

Could be that it is localized to the Cleveland area, but is anyone else noticing issues with glbx? -Drew No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.472 / Virus Database: 269.9.0/853 - Release Date: 6/18/2007 3:02 PM

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AT&T $10 DSL plan
by William Allen Simpson 22 Jun '07

22 Jun '07

Apparently, this has been in the news for a couple of days, but only just hit my hometown paper.... === AT&T Inc. has started offering a broadband Internet service for $10 a month, cheaper than any advertised plan. The DSL, or digital subscriber line, plan introduced Saturday is part of the concessions made by AT&T to the Federal Communications Commission to get its $86 billion acquisition of BellSouth Corp. approved last December. The $10 offer is available to customers in the 22-state AT&T service region, which includes Michigan, who have never had AT&T or BellSouth broadband. === Basically, it's only available to *OUR* customers that switch! What the heck is the FCC thinking? Did AT&T basically say, "Please don't throw me into that briar patch." I cannot even lease dialup lines from AT&T/BS at that rate. It will put all competitors out of business. Anybody considering a lawsuit to stop this happening?

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MEDIA: Ruptured Cable Disrupts Internet Service in 5 Latin American Nations
by william(at)elan.net 22 Jun '07

22 Jun '07

http://biz.yahoo.com/ap/070621/colombia_internet_disrupted.html?.v=1 --- AP - Internet Fails in 5 Latin Countries - Thursday June 21, 6:31 pm ET Ruptured Cable Disrupts Internet Service in 5 Latin American Nations BOGOTA, Colombia (AP) -- Accidental damage to an undersea fiber-optics cable left millions of people without Internet service in five Latin American countries, the cable's owner said Thursday. In Colombia, as many as 45 percent of Internet users were left with limited or no connection. Problems were also reported in Panama, Venezuela, Costa Rica and Nicaragua. In a statement, Columbus said repair ships set sail from Mexico and the company hoped the cable would be fixed on Friday. The statement did not say what damaged the underwater cable. The company said it would investigate the cause. The general secretary of the Colombian phone company, Empresa Telefonica de Bogota, Andres Perez, told The Associated Press that nearly half of this South American country's 5 million Internet users were left without service. The Nicaraguan Internet service-provider Cablenet said a backup system kicked in after the cable's rupture delivering limited but slower service. Costa Rica's state-run Instituto Costarricense de Electricidad also reported a slowing down of Internet service. It is the second problem to befall the Arcos network this month. On June 5, a cable off the coast of Venezuela was cut causing no interruption to service.

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