BGP Update Report
BGP Update Report Interval: 25-Nov-07 -to- 26-Dec-07 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9116 332851 4.0% 929.8 -- GOLDENLINES-ASN Golden Lines Main Autonomous System 2 - AS17421 165303 2.0%4591.8 -- EMOME-TW Long Distance Mobile Business Group, 3 - AS8452 124431 1.5% 432.1 -- TEDATA TEDATA 4 - AS16637 106652 1.3%1545.7 -- MTNNS-AS 5 - AS886694208 1.1% 328.3 -- BTC-AS Bulgarian Telecommunication Company Plc. 6 - AS949875648 0.9% 67.4 -- BBIL-AP BHARTI BT INTERNET LTD. 7 - AS958373331 0.9% 64.3 -- SIFY-AS-IN Sify Limited 8 - AS381571289 0.9% 10184.1 -- AQUILA - Aquila BBS Inc. 9 - AS346268381 0.8% 409.5 -- HINET Data Communication Business Group 10 - AS475561884 0.8% 40.8 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 11 - AS815159095 0.7% 36.7 -- Uninet S.A. de C.V. 12 - AS14390 59059 0.7% 937.4 -- CORENET - Coretel America, Inc. 13 - AS478257647 0.7%4117.6 -- GSNET Data Communication Business Group 14 - AS17974 51649 0.6% 116.9 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 15 - AS982946789 0.6% 41.3 -- BSNL-NIB National Internet Backbone 16 - AS26829 42871 0.5% 42871.0 -- YKK-USA - YKK USA,INC 17 - AS702 41904 0.5% 41.7 -- AS702 Verizon Business EMEA - Commercial IP service provider in Europe 18 - AS912141638 0.5% 195.5 -- TTNET TTnet Autonomous System 19 - AS24731 39993 0.5% 833.2 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 20 - AS453838819 0.5% 19.6 -- ERX-CERNET-BKB China Education and Research Network Center TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS26829 42871 0.5% 42871.0 -- YKK-USA - YKK USA,INC 2 - AS40474 22298 0.3% 22298.0 -- ABML-2 - Advantage Business Media, LLC 3 - AS22072 14025 0.2% 14025.0 -- DEFINITYHEALTH - Definity Health 4 - AS33447 11995 0.1% 11995.0 -- RPTCO-ASN-1 - RPT Consulting, Inc. 5 - AS381571289 0.9% 10184.1 -- AQUILA - Aquila BBS Inc. 6 - AS193347826 0.1%7826.0 -- SPORTLINE-DBC - SPORTLINE 7 - AS617413563 0.2%6781.5 -- SPRINTLINK8 - Sprint 8 - AS309295721 0.1%5721.0 -- HUTCB Hidrotechnical Faculty - Technical University 9 - AS17421 165303 2.0%4591.8 -- EMOME-TW Long Distance Mobile Business Group, 10 - AS241604407 0.1%4407.0 -- CHIMEI-AS Chi Mei Corporation 11 - AS236754382 0.1%4382.0 -- TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd. 12 - AS478257647 0.7%4117.6 -- GSNET Data Communication Business Group 13 - AS175404062 0.1%4062.0 -- MTL-AP Modern Terminals Limited 14 - AS184103069 0.0%3069.0 -- TW-104IT-AS 104 Information Technology Co., Ltd. 15 - AS10229 15113 0.2%3022.6 -- YAHOO-TPE Internet Content Provider 16 - AS24506 12048 0.1%3012.0 -- YAHOO-TP2-AP Yahoo! Taiwan Inc., 17 - AS237122997 0.0%2997.0 -- ISC-TPE1 Internet Systems Consortium, Inc. 18 - AS195995070 0.1%2535.0 -- COPYRIGHT - COPYRIGHT CLEARANCE CENTER 19 - AS139564808 0.1%2404.0 -- 20 - AS402569550 0.1%2387.5 -- ACS-HCMS-ASN - Affiliated Computer Services, Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 209.163.125.0/24 57355 0.6% AS14390 -- CORENET - Coretel America, Inc. 2 - 192.96.14.0/2449390 0.6% AS16637 -- MTNNS-AS 3 - 192.96.13.0/2449385 0.6% AS16637 -- MTNNS-AS 4 - 12.108.254.0/24 42871 0.5% AS26829 -- YKK-USA - YKK USA,INC 5 - 83.228.59.0/2432974 0.4% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 6 - 83.228.61.0/2432112 0.4% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 7 - 203.101.87.0/24 28285 0.3% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 8 - 84.95.158.0/2423724 0.3% AS9116 -- GOLDENLINES-ASN Golden Lines Main Autonomous System 9 - 84.95.159.0/2423619 0.3% AS9116 -- GOLDENLINES-ASN Golden Lines Main Autonomous System 10 - 84.95.157.0/2423282 0.3% AS9116 -- GOLDENLINES-ASN Golden Lines Main Autonomous System 11 - 84.95.156.0/2422925 0.3% AS9116 -- GOLDENLINES-ASN Golden Lines Main Autonomous System 12 - 83.228.103.0/24 22508 0.2% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 13 - 84.95.155.0/2422498 0.2% AS9116 -- GOLDENLINES-ASN Golden Lines Main Autonomous System 14 - 65.126.154.0/24 22298 0.2%
The Cidr Report
This report has been generated at Fri Dec 28 21:14:15 2007 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
21-12-07245508 156578
22-12-07245531 156715
23-12-07245473 156873
24-12-07245543 157727
25-12-07247101 158121
26-12-07247141 159056
27-12-07247406 159052
28-12-07247174 159393
AS Summary
27071 Number of ASes in routing system
11417 Number of ASes announcing only one prefix
1971 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network
Center
88895744 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - 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').
--- 28Dec07 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 246898 1590118788735.6% All ASes
AS4538 1971 722 124963.4% ERX-CERNET-BKB China Education
and Research Network Center
AS9498 1065 65 100093.9% BBIL-AP BHARTI BT INTERNET
LTD.
AS4323 1382 427 95569.1% TWTC - Time Warner Telecom,
Inc.
AS4755 1508 587 92161.1% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS18566 1036 120 91688.4% COVAD - Covad Communications
Co.
AS11492 1201 415 78665.4% CABLEONE - CABLE ONE
AS22773 834 77 75790.8% CCINET-2 - Cox Communications
Inc.
AS8151 1146 427 71962.7% Uninet S.A. de C.V.
AS19262 865 177 68879.5% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6478 1090 411 67962.3% ATT-INTERNET3 - ATT WorldNet
Services
AS17488 932 293 63968.6% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS15270 595 45 55092.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS18101 611 79 53287.1% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS2386 1343 832 51138.0% INS-AS - ATT Data
Communications Services
AS6197 1027 546 48146.8% BATI-ATL - BellSouth Network
Solutions, Inc
AS7018 1507 1031 47631.6% ATT-INTERNET4 - ATT WorldNet
Services
AS4766 829 382 44753.9% KIXS-AS-KR Korea Telecom
AS4812 529 93 43682.4% CHINANET-SH-AP China Telecom
(Group)
AS7011 1008 588 42041.7% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS17676 505 90 41582.2% GIGAINFRA BB TECHNOLOGY Corp.
AS7545 595 188 40768.4% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS3356 834 433 40148.1% LEVEL3 Level 3 Communications
AS4134 978 582 39640.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4808 517 124 39376.0% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS19916 563 180 38368.0% ASTRUM-0001 - OLM LLC
AS9443 450 76 37483.1% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4668 520 169 35167.5% LGNET-AS-KR LG CNS
AS5668 659 313 34652.5% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS3602 399 76 32381.0% AS3602-RTI - Rogers Telecom
Re: South America Peering
Hi Adam, I work for a Telecom Company (AS 6057) here in Uruguay (South America). May be, the main site you should consider if you want peering with S.A. is the NAP at Miami (wich in fact is operated by Terremark). There you'll find some ISP such as us, some from Argentina, some from Brazil, etc... If you want, we may follow this thread out-NANOG list. Nicolas. Robert Boyle wrote: At 07:39 PM 12/27/2007, AD wrote: hello, does anyone have any experience with peering in S. America? I am looking to move a lot of data between NewYork/LA and a few south american countries and looking for some ISPs that have reliable peering into those countries. Any recommendations would be appreciated. The one i did find was Terremark, but no others yet. Adam, If you want connectivity to Latin America (inc. S. America) from the US (LA NY), then you probably want to be at NOA in Miami. That is a Terremark facility, but lots of carriers are there. Look at their carrier customer list and you will see all of the carriers connected to them in Miami: http://marketplace.terremark.com/bysegment.asp?s=1 We have a few connections which go through NOA and we have found the pricing to get high speed circuits to NY and LA from Miami to be very reasonable. Good luck with your project. -Robert Tellurian Networks - Global Hosting Solutions Since 1995 http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 Well done is better than well said. - Benjamin Franklin
Re: v6 subnet size for DSL leased line customers
Randy Bush wrote: vendors, like everyone else, will do what is in their best interests. as i am an operator, not a vendor, that is often not what is in my best interest, marketing literature aside. i believe it benefits the ops community to be honest when the two do not seem to coincide. If the ops community doesn't provide enough addresses and a way to use them then the vendors will do the same thing they did in v4. i presume you mean nat v6/v6. this would be a real mess and i don't think anyone is contending it is desirable. but this discussion is ostensibly operators trying to understand what is actually appropriate and useful for a class of customers, i believe those of the consumer, soho, and similar scale. to summarize the positions i think i have heard o one /64 subnet per device, but the proponent gave no estimate of the number of devices o /48 o /56 o /64 It plausible that if one were to assign a single /64 and reserve a 56 to delegate per customer that you could number about 16 million customers per /32 with a few hundred thousand /64s remaining for infrastrucuture. size of an agregate for a pop might be /48 (~250 customers) to /40 (65k customers) to /36 (1 million customers) A large retail isp might under those circumstances be able to get away with order of /28 to /30 in total. the latter three all assuming that the allocation would be different if the site had actual need and justification. personally, i do not see an end site needing more than 256 subnets *by default*, though i can certainly believe a small minority of them need more and would use the escape clause. so, if we, for the moment, stick to the one /64 per subnet religion, than a /56 seems sufficient for the default allocation. personally, i have a hard time thinking that any but a teensie minority, who can use the escape clause, need more than 256. hence, i just don't buy the /48 position.
Carrier Hotels in Chicago
Hello all, I located our new midwest datacenter site, but I'm going to need connectivity to Chicago. At which other middle of the country places should we connect? We will obviously connect back to our network in New York and Los Angeles, but I'm not familiar with other carrier hotels or IXs in the middle of the US. What is in Dallas? Does anyone have any strong feelings about Telx in http://www.telx.com/facilities.php?section=ChicagoIL350ECermakRoadChicago, IL @ 350 E. Cermak Road or http://www.telx.com/facilities.php?section=ChicagoIL600_780SFederalSt600 S. Federal Street? Are those the best places in the midwest? Any other suggestions? I am asking here because I am looking for a carrier and ISP perspective. I am going to colocate core and edge routers and I need connectivity to a large pool of carriers and no MRC on cross connections. Any help or advice would be appreciated. Thanks! -Robert Tellurian Networks - Global Hosting Solutions Since 1995 http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 Well done is better than well said. - Benjamin Franklin
Re: v6 subnet size for DSL leased line customers
It plausible that if one were to assign a single /64 and reserve a 56 to delegate per customer as a provider, where is the win in this for me? the space is 'lost', i.e. committed, and i increase provisioning hassles, though maybe mildly if i am skillful. if/when the rirs sober up about ipv6 justification, i will have a hard time showing an hd ratio without a lot of zeros to the immediate right of the decimal point. or would you suggest that i recover the committed space if unused? under what conditions? after how long? and, when i recover, do i allocate the second (or 42nd) /64 to a new customer, leaving them a smaller cushion than the first user of that /56 received? no easy answers. but yes, giving them a /56 off the bat feels a bit reminiscent of giving them a /24 in ipv4. randy
Re: v6 subnet size for DSL leased line customers
On Thu, 27 Dec 2007 21:50:01 -0500 Robert E. Seastrom [EMAIL PROTECTED] wrote: Leo Bicknell [EMAIL PROTECTED] writes: snip I'd really, really, really like to have DHCP6 on the Mac. Autoconfig is not sufficient for this task unless there is some kind of trick you can do to make the eui-64 come out the same for both interfaces (don't think so). Don't know if Mac's can do bridging, but under Linux, all you'd need to do would be create bridge instance, assign the two or more interfaces to the bridge, and have DHCPv6 use the bridge virtual interface. Regards, Mark. -- Sheep are slow and tasty, and therefore must remain constantly alert. - Bruce Schneier, Beyond Fear
New Years Eve
Ok folks, what's the plan? I think we should opt to join each others company at either Brasserie Jo's, or Blu. I can't speak for Jo's NYE, but Blu NYE has optional fireworks viewing on their deck facing the common. Should be pretty awesome. $99 bux. Significant others invited, of course, and anyone else who may be straggling on NYE. Let's do something together. It's long overdue. Marty
