VPN device mapping software or auto-discovery scripts
I am looking for a solution on this, at this time -henry
Re: Proxy Server
pfSense has everything: proxy (squid), firewall, bw-management, captive portal and a very nice web interface for management: www.pfsense.org
Re: Proxy Server
Thnax very much , it is wht i need On Fri, Aug 6, 2010 at 10:01 AM, Adrian M adrian.mi...@gmail.com wrote: pfSense has everything: proxy (squid), firewall, bw-management, captive portal and a very nice web interface for management: www.pfsense.org
Re: off-topic: historical query concerning the Internet bubble
As you may recall (because you have been part of it) the 1995-2000 was a period of major consolidation in the ISP industry, metrics were hard to obtain and the ones available were hard to believe. Due to the consolidation of many small networks from various ISPs (I remember that in my former life we engulfed several of the surviving post NSFNet regionals), almost all the big pipes of those ISPs were up to the choking point, then when the time came to move all those pipes to a better backbone and exchange points, and in the process make them bigger, traffic started to increase dramatically, accompanied as well by a decrease in packet loss and delays. The consolidation also helped to move mom pop configuration of stacked us robitics modems to much modern, efficient and reliable aggregation technologies and architectures on the access side, add ISDN, DSL, cable, etc. Not sure how to include it as a variable, but at least in the US the Telecom Act of 1996 also changed the playing field, CLECs and other new telecom companies were born. On top of that, in that period there was also a big increase in international capacity, some connections (particularly south and central america) were switching from satellite to fiber, many developing countries (some of them were just coming out of highly monopolized and regulated telecom services) were able to have access to better international connections, plus all the traffic growth driven from the application side, plus the contribution of dramatic growth in shared and dedicated hosting services. I don't recall or have at hand at this time the exact figure, but I'd agree with you that at some time it looked like a ~10x thing whit some spurts of much higher growth. Cheers Jorge
Re: off-topic: historical query concerning the Internet bubble
BTW, in the context of Andrew's paper (very interesting indeed) I believe that one of the issues is that many executives took that spurt growth I was referring to in my previous message, as organic growth and used it to make unrealistic projections which in turn led to unrealistic valuations, and so on. In some cases we wasted tons of money over building capacity, particularly during the datacenter frenzy, later to find that we had a lot of empty hi-tech real state. I like how you characterized the investment waste in your paper. Regards Jorge
Re: off-topic: historical query concerning the Internet bubble
Jorge, Many thanks for the comments. To the entire NANOG list: I have received many comments, a few through the list, most off-list. I greatly appreciate all, and will be responding to them all off-list, since this is not an operational matter. If there is interest, I can summarize for the list in a few days. In the meantime, please keep sending in more data! Best regards, Andrew On Fri, 6 Aug 2010, Jorge Amodio wrote: BTW, in the context of Andrew's paper (very interesting indeed) I believe that one of the issues is that many executives took that spurt growth I was referring to in my previous message, as organic growth and used it to make unrealistic projections which in turn led to unrealistic valuations, and so on. In some cases we wasted tons of money over building capacity, particularly during the datacenter frenzy, later to find that we had a lot of empty hi-tech real state. I like how you characterized the investment waste in your paper. Regards Jorge
Re: off-topic: historical query concerning the Internet bubble
In article 5ac3e79a-392b-4d1b-bfc7-2700942fd...@ianai.net, Patrick W. Gilmore patr...@ianai.net writes Although, as someone active in 2000, I can tell you that traffic did not grow 12.55 times per year (doubling every 100 days), or anything even close to that. Keeping it in the family a little, Mike was quoted as saying this - see p2: https://www.linx.net/files/hotlinx/hotlinx-3.pdf Although there were two factors here as far as LINX itself was concerned - growth in members as well as growth in traffic from each individual member. -- Roland Perry
Re: off-topic: historical query concerning the Internet bubble
On Aug 6, 2010, at 12:13 PM, Roland Perry wrote: In article 5ac3e79a-392b-4d1b-bfc7-2700942fd...@ianai.net, Patrick W. Gilmore patr...@ianai.net writes Although, as someone active in 2000, I can tell you that traffic did not grow 12.55 times per year (doubling every 100 days), or anything even close to that. Keeping it in the family a little, Mike was quoted as saying this - see p2: https://www.linx.net/files/hotlinx/hotlinx-3.pdf Although there were two factors here as far as LINX itself was concerned - growth in members as well as growth in traffic from each individual member. Even ignore the fact this is overestimating growth, it still is not 12.55 times in one year. Or even double in 100 days. -- TTFN, patrick
Re: Recommended 1Gb SFP for ~115km?
On Aug 4, 2010, at 12:27 PM, Abello, Vinny wrote: Thanks for the input, Justin. I'm familiar with Transition Networks and have used their solutions in other scenarios (as well as MRV). I'm aware of the fiber characteristics being a major factor of the link budget and dispersion, etc. I am waiting on measurements from the company who is finishing the splicing of the fiber for us so I know what I have to work with. If you're fine with 3rd party optics, FluxLight has BIDI SFP's that will reach up to 120km. http://www.fluxlightinc.com/prod.php?id=309 They show up as Cisco SFP's right in the switch/router. I've had good luck with the 40 80km ones in the past. -- Robert Blayzor INOC, LLC rblay...@inoc.net http://www.inoc.net/~rblayzor/
RE: Proxy Server
pfSense has everything: proxy (squid), firewall, bw-management, captive portal and a very nice web interface for management: www.pfsense.org The only thing it doesn't have is IPv6 support (yet). :( Best Regards, Nathan Eisenberg
Per IP Subscriber DHCP Triggered RADIUS Accounting
Hello, I work at small cable operator, and we are using Cisco CNR as DHCP server. Now, we want to offer some VAS to our customers. The problem is that we are using CNR as dhcp server, and VAS server need to know the ip address of every subscriber (static is not an option). DHCP lease query is not an option (something Cisco SCE is using) simply because VAS server does not support it. The closest thing that comes to my mind is that we use DDNS on CNR to send DNS updateds to our custom written daemon that will extract ip and A record (this will be the mac address of CPE). Any other options? Has anyone from cable world come to this or anyother solution?
Re: Per IP Subscriber DHCP Triggered RADIUS Accounting
ok, subject is a little missliding as that would be an option if we can use Cisco router as DHCP which is not possible at the moment in our network. On Fri, Aug 6, 2010 at 10:35 PM, Pavel Dimow paveldi...@gmail.com wrote: Hello, I work at small cable operator, and we are using Cisco CNR as DHCP server. Now, we want to offer some VAS to our customers. The problem is that we are using CNR as dhcp server, and VAS server need to know the ip address of every subscriber (static is not an option). DHCP lease query is not an option (something Cisco SCE is using) simply because VAS server does not support it. The closest thing that comes to my mind is that we use DDNS on CNR to send DNS updateds to our custom written daemon that will extract ip and A record (this will be the mac address of CPE). Any other options? Has anyone from cable world come to this or anyother solution?
Re: Proxy Server
On 06/08/2010 22:15, Nathan Eisenberg wrote: The only thing it doesn't have is IPv6 support (yet). :( I was a huge fan of pfSense and I really enjoyed the interface, packaging and integration. The lack of IPv6 caused the end of that relationship. -- Graham Beneke
Re: Proxy Server
On Aug 6, 2010, at 1:15 PM, Nathan Eisenberg wrote: pfSense has everything: proxy (squid), firewall, bw-management, captive portal and a very nice web interface for management: www.pfsense.org The only thing it doesn't have is IPv6 support (yet). :( Best Regards, Nathan Eisenberg Apparently it can be made to work: http://remcobressers.nl/2009/08/configuring-native-ipv6-pfsense/ Owen
AS0 in AS path
hi nanog, Does anybody have\had experience with BGP announces containing AS 0 in AS path? I know that AS 0 is reserved by IANA, but still, is it possible to receive such announce messages? Thanks. -- Sincerely, Mikhail Strizhov Email: striz...@cs.colostate.edu mailto:striz...@cs.colostate.edu
Re: AS0 in AS path
On 08/06/2010 02:15 PM, Mikhail Strizhov wrote: Does anybody have\had experience with BGP announces containing AS 0 in AS path? I know that AS 0 is reserved by IANA, but still, is it possible to receive such announce messages? eBGP or iBGP? What type of device and/or software are you using to speak BGP? As far as I know, most devices should NOT let you set your ASN to 0 or let you add it to the AS path. My guess is it's probably going to be filtered by the BGP scanner, but I don't have any gear laying around that I can play with at the moment to confirm. :) -- Kameron Gasso | kame...@gasso.org
Re: off-topic: historical query concerning the Internet bubble
I have a concern that your posting and your paper mix UUNet traffic with the Internet traffic. I personally was very much involved in the ISP world (was working for Tier1 ISPs) during the period and I’d like to point out the following: UUNet’s (or any other individual network’s) traffic does NOT equal to the Internet traffic, even at that time! I was working at ANSnet and later UUnet due to a three party acquisition deal between AOL, WorldCom and CompuServe during that time period. I did hear presentations about network traffic being doubling every 100 days by O’Dell but my understanding was that he was referring to UUnet’s traffic not the Internet traffic. At the time, the Tier 1 ISPs included UUNet, MCI Network, Sprint Network, ANSnet, etc. Each ISP could only collect network traffic stats on its own backbone and there was no one entity could collect the entire Internet traffic. For this reason, the prediction by O’Dell could only be based on UUNet’s traffic stats. I really doubt that O’Dell would say the Internet traffic doubling every 100 days rather than saying that of UUNet’s traffic. I’d encourage you to do some research to find out if he was really referring to the Internet traffic or just UUNet traffic. The reference listed by your paper showed that he was saying ‘network traffic’ not ‘Internet traffic.’ I do not know if making such distinction would alter the conclusion of your paper. But, to me, there is a difference between one to predict the growth of one particular network based on the stats collected than one to predict the growth of the entire Internet with no solid data. Thanks!--Jessica From: Andrew Odlyzko odly...@umn.edu To: nanog@nanog.org Sent: Thu, August 5, 2010 11:38:38 AM Subject: off-topic: historical query concerning the Internet bubble Apologies for intruding with this question, but I can't think of any group that might have more concrete information relevant to my current research. Enclosed below is an announcement of a paper on technology bubbles. It is based largely on the Internet bubble of a decade ago, and concentrates on the Internet traffic doubling every 100 days tale. As the paper shows, this myth was perceived in very different ways by different people, and this by itself helps undermine the foundations of much of modern economics and economic policy making. To get a better understanding of the dynamics of that bubble, to assist in the preparation of a book about that incident, I am soliciting information from anyone who was active in telecom during that period. I would particularly like to know what you and your colleagues estimated Internet traffic growth to be, and what your reaction was to the O'Dell/Sidgmore/WorldCom/UUNet myth. If you were involved in the industry, and never heard of it, that would be extremely useful to know, too. Ideally, I would like concrete information, backed up by dates, and possibly even emails, and a permission to quote this information. However, I will settle for more informal comments, and promise confidentiality to anyone who requests it. Andrew Odlyzko odly...@umn.edu http://www.dtc.umn.edu/~odlyzko/doc/mania03.pdf Bubbles, gullibility, and other challenges for economics, psychology, sociology, and information sciences Andrew Odlyzko School of Mathematics and Digital Technology Center University of Minnesota odly...@umn.edu http://www.dtc.umn.edu/~odlyzko Preliminary version, August 5, 2010 ABSTRACT Gullibility is the principal cause of bubbles. Investors and the general public get snared by a beautiful illusion and throw caution to the wind. Attempts to identify and control bubbles are complicated by the fact that the authorities who might naturally be expected to take action have often (especially in recent years) been among the most gullible, and were cheerleaders for the exuberant behavior. Hence what is needed is an objective measure of gullibility. This paper argues that it should be possible to develop such a measure. Examples demonstrate, contrary to the efficient market dogma, that in some manias, even top-level business and technology leaders do fall prey to collective hallucinations and become irrational in objective terms. During the Internet bubble, for example, large classes of them first became unable to comprehend compound interest, and then lost even the ability to do simple arithmetic, to the point of not being able to distinguish 2 from 10. This phenomenon, together with advances in analysis of social networks and related areas, points to possible ways to develop objective and quantitative tools for measuring gullibility and other aspects of human behavior implicated in
Re: AS0 in AS path
On Aug 6, 2010, at 11:48 AM, valdis.kletni...@vt.edu wrote: On Fri, 06 Aug 2010 15:15:47 MDT, Mikhail Strizhov said: Does anybody have\had experience with BGP announces containing AS 0 in AS path? I know that AS 0 is reserved by IANA, but still, is it possible to receive such announce messages? After 3 decades in this business, I can make two predictions: 1) Somebody has managed to fat-finger something and announced AS0 at some point. 2) At least one vendor's gear promptly committed seppuku *after* passing the broken announcement on to its neighbors. Those aren't predictions, they're statistically certain observations. :-) Regards, -drc
BGP Update Report
BGP Update Report Interval: 29-Jul-10 -to- 05-Aug-10 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS346426784 2.5%6696.0 -- ASC-NET - Alabama Supercomputer Network 2 - AS14420 20508 1.9% 37.4 -- CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP 3 - AS35931 15633 1.5%5211.0 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 4 - AS553615520 1.5% 152.2 -- Internet-Egypt 5 - AS845214012 1.3% 17.4 -- TEDATA TEDATA 6 - AS48754 11048 1.1% 11048.0 -- SOBIS-AS SOBIS SOLUTIONS SRL 7 - AS25620 10953 1.0% 75.0 -- COTAS LTDA. 8 - AS45464 10527 1.0% 244.8 -- NEXTWEB-AS-AP Room 201, TGU Bldg 9 - AS35805 10374 1.0% 14.7 -- SILKNET-AS SILKNET AS 10 - AS31204 10209 1.0% 392.7 -- SUNCOMMUNICATIONS-AS JV Sun Communications Autonomous System 11 - AS2018 9790 0.9% 46.2 -- TENET-1 12 - AS5800 9781 0.9% 48.2 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 13 - AS325289487 0.9%3162.3 -- ABBOTT Abbot Labs 14 - AS9829 8799 0.8% 41.5 -- BSNL-NIB National Internet Backbone 15 - AS372048143 0.8%1163.3 -- TELONE 16 - AS369927638 0.7% 19.6 -- ETISALAT-MISR 17 - AS8151 7153 0.7% 38.0 -- Uninet S.A. de C.V. 18 - AS277387094 0.7% 33.8 -- Ecuadortelecom S.A. 19 - AS245606873 0.7% 10.3 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 20 - AS210176784 0.6% 357.1 -- VSI-AS VSI AS TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS48754 11048 1.1% 11048.0 -- SOBIS-AS SOBIS SOLUTIONS SRL 2 - AS346426784 2.5%6696.0 -- ASC-NET - Alabama Supercomputer Network 3 - AS35931 15633 1.5%5211.0 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 4 - AS250903168 0.3%3168.0 -- EOS-AS Energie Ouest Suisse Autonomous System 5 - AS325289487 0.9%3162.3 -- ABBOTT Abbot Labs 6 - AS535321775 0.2%1775.0 -- KINGMETALS - King Architectural Metals 7 - AS387841629 0.1%1629.0 -- ORBICOMNET-AS-ID PT. Global Inti Corporatama 8 - AS372048143 0.8%1163.3 -- TELONE 9 - AS169062198 0.2%1099.0 -- El Salvador Network, S. A. 10 - AS523 2677 0.2% 892.3 -- REDSTONE-AS - Headquarters, USAISC 11 - AS27027 863 0.1% 863.0 -- ANBELL ASN-ANBELL 12 - AS47593 784 0.1% 784.0 -- ATELECOM A-Telcom Ltd 13 - AS11196 696 0.1% 696.0 -- NESTLE-USA - Nestle USA 14 - AS11613 577 0.1% 577.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 15 - AS263833966 0.4% 566.6 -- CHILITECH - CHILITECH INTERNET SOLUTIONS, INC. 16 - AS11032 464 0.0% 464.0 -- UQ - Universite du Quebec 17 - AS45034 461 0.0% 461.0 -- NORDSEE-AS Nordsee Gesellschaft m.b.H. 18 - AS9556 1709 0.2% 427.2 -- ADAM-AS-AP Adam Internet Pty Ltd 19 - AS50158 421 0.0% 421.0 -- CONNECT-LLC-AS Connect LLC 20 - AS104452440 0.2% 406.7 -- HTG - Huntleigh Telcom TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 129.66.0.0/17 13390 1.2% AS3464 -- ASC-NET - Alabama Supercomputer Network 2 - 129.66.128.0/17 13388 1.2% AS3464 -- ASC-NET - Alabama Supercomputer Network 3 - 91.212.23.0/2411048 1.0% AS48754 -- SOBIS-AS SOBIS SOLUTIONS SRL 4 - 63.211.68.0/22 7872 0.7% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 5 - 198.140.43.0/247747 0.7% AS35931 -- ARCHIPELAGO - ARCHIPELAGO HOLDINGS INC 6 - 190.65.228.0/225751 0.5% AS3816 -- COLOMBIA TELECOMUNICACIONES S.A. ESP 7 - 130.36.35.0/24 4698 0.4% AS32528 -- ABBOTT Abbot Labs 8 - 130.36.34.0/24 4696 0.4% AS32528 -- ABBOTT Abbot Labs 9 - 41.34.29.0/24 3995 0.3% AS8452 -- TEDATA TEDATA 10 - 95.32.128.0/18 3265 0.3% AS21017 -- VSI-AS VSI AS 11 - 95.32.192.0/18 3260 0.3% AS21017 -- VSI-AS VSI AS 12 - 193.8.222.0/24 3168 0.3% AS25090 -- EOS-AS Energie Ouest Suisse Autonomous System 13 - 206.184.16.0/243085 0.3% AS174 -- COGENT Cogent/PSI 14 - 202.92.235.0/242828 0.2% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 15 - 117.20.0.0/24 2601 0.2% AS23670 -- OZSERVERS-AU Oz Servers, Data Centres, Australia Wide 16 - 208.51.46.0/24 1775 0.2% AS53532 -- KINGMETALS - King Architectural Metals 17 - 143.138.107.0/24 1698 0.1% AS747 -- TAEGU-AS - Headquarters, USAISC 18 - 72.20.248.0/21 1651 0.1% AS26383 -- CHILITECH - CHILITECH INTERNET SOLUTIONS, INC. 19 - 202.75.17.0/24 1629 0.1%
The Cidr Report
This report has been generated at Fri Aug 6 21:11:36 2010 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
30-07-10330809 203447
31-07-10330957 203376
01-08-10330953 203451
02-08-10331084 203492
03-08-10331158 203792
04-08-10331218 203836
05-08-10331107 203907
06-08-10330860 204157
AS Summary
35018 Number of ASes in routing system
14873 Number of ASes announcing only one prefix
4488 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
95690560 Largest address span announced by an AS (/32s)
AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street
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').
--- 06Aug10 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 331326 204069 12725738.4% All ASes
AS6389 3867 286 358192.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4488 1834 265459.1% TWTC - tw telecom holdings,
inc.
AS19262 1950 282 166885.5% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS4766 1857 504 135372.9% KIXS-AS-KR Korea Telecom
AS22773 1177 66 94.4% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1479 395 108473.3% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS5668 1128 89 103992.1% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS18566 1087 63 102494.2% COVAD - Covad Communications
Co.
AS17488 1343 320 102376.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS8151 1527 623 90459.2% Uninet S.A. de C.V.
AS6478 1274 374 90070.6% ATT-INTERNET3 - ATT WorldNet
Services
AS10620 1089 288 80173.6% Telmex Colombia S.A.
AS8452 1169 422 74763.9% TEDATA TEDATA
AS7545 1392 713 67948.8% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS7303 790 119 67184.9% Telecom Argentina S.A.
AS4808 900 278 62269.1% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS4804 677 72 60589.4% MPX-AS Microplex PTY LTD
AS35805 658 113 54582.8% SILKNET-AS SILKNET AS
AS7552 652 120 53281.6% VIETEL-AS-AP Vietel
Corporation
AS7018 1477 952 52535.5% ATT-INTERNET4 - ATT WorldNet
Services
AS4780 684 164 52076.0% SEEDNET Digital United Inc.
AS24560 997 487 51051.2% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS17676 582 80 50286.3% GIGAINFRA Softbank BB Corp.
AS3356 1164 664 50043.0% LEVEL3 Level 3 Communications
AS9443 572 76 49686.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS7011 1139 656 48342.4% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS1785 1786 1309 47726.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS22047 553 81 47285.4% VTR BANDA ANCHA S.A.
AS14420 537 77 46085.7% CORPORACION NACIONAL DE
TELECOMUNICACIONES - CNT EP
AS9198 499 40 45992.0% KAZTELECOM-AS JSC
Kazakhtelecom
Total 38494
Re: off-topic: historical query concerning the Internet bubble
To entire list: I have received several requests to post a summary of the comments that are flowing in, so I will do so in a couple of days, say by Tuesday of next week, to allow for vacations, ... In the meantime, I encourage further contributions. To Jessica: If my posting or my paper mix UUNet traffic with that of the entire Internet, I apologize for not being clear enough. O'Dell and Sidgmore always, as far as I know (although I only have a transcript of the O'Dell presentation at Stanford in May 2000, http://www.dtc.umn.edu/~odlyzko/isources/odell-transcript.txt) spoke just about UUNet capacity. However, the myth was that the traffic on the Internet as a whole was doubling every 100 days. The puzzle of how people could confuse traffic and capacity is considered in some detail in Section 5 of the paper. From the O'Dell presentation it is possible to guess that the intended implication was that UUNet was growing much faster than the rest of the Internet, but in any case I have not seen any references where either O'Dell or In the presentations that you heard by O'Dell (was that internal to WorldCom, and if so when), are you sure he was talking of traffic, and not capacity? It makes a difference in evaluting his claims. Which of my references has O'Dell saying ‘network traffic’? I cannot find it. The only similar quote I can find is in Section 5, where Joe Cook of WorldCom is talking of ‘network traffic,' but there it is clear it is just WorldCom traffic he has in mind. Andrew Jessica Yu jyy...@yahoo.com wrote: I have a concern that your posting and your paper mix UUNet traffic with the Internet traffic. I personally was very much involved in the ISP world (was working for Tier1 ISPs) during the period and I’d like to point out the following: UUNet’s (or any other individual network’s) traffic does NOT equal to the Internet traffic, even at that time! I was working at ANSnet and later UUnet due to a three party acquisition deal between AOL, WorldCom and CompuServe during that time period. I did hear presentations about network traffic being doubling every 100 days by O’Dell but my understanding was that he was referring to UUnet’s traffic not the Internet traffic. At the time, the Tier 1 ISPs included UUNet, MCI Network, Sprint Network, ANSnet, etc. Each ISP could only collect network traffic stats on its own backbone and there was no one entity could collect the entire Internet traffic. For this reason, the prediction by O’Dell could only be based on UUNet’s traffic stats. I really doubt that O’Dell would say the Internet traffic doubling every 100 days rather than saying that of UUNet’s traffic. I’d encourage you to do some research to find out if he was really referring to the Internet traffic or just UUNet traffic. The reference listed by your paper showed that he was saying ‘network traffic’ not ‘Internet traffic.’ I do not know if making such distinction would alter the conclusion of your paper. But, to me, there is a difference between one to predict the growth of one particular network based on the stats collected than one to predict the growth of the entire Internet with no solid data. Thanks!--Jessica From: Andrew Odlyzko odly...@umn.edu To: nanog@nanog.org Sent: Thu, August 5, 2010 11:38:38 AM Subject: off-topic: historical query concerning the Internet bubble Apologies for intruding with this question, but I can't think of any group that might have more concrete information relevant to my current research. Enclosed below is an announcement of a paper on technology bubbles. It is based largely on the Internet bubble of a decade ago, and concentrates on the Internet traffic doubling every 100 days tale. As the paper shows, this myth was perceived in very different ways by different people, and this by itself helps undermine the foundations of much of modern economics and economic policy making. To get a better understanding of the dynamics of that bubble, to assist in the preparation of a book about that incident, I am soliciting information from anyone who was active in telecom during that period. I would particularly like to know what you and your colleagues estimated Internet traffic growth to be, and what your reaction was to the O'Dell/Sidgmore/WorldCom/UUNet myth. If you were involved in the industry, and never heard of it, that would be extremely useful to know, too. Ideally, I would like concrete information, backed up by dates, and possibly even emails, and a permission to quote this information. However, I will settle for more informal comments, and promise confidentiality to anyone who requests it. Andrew Odlyzko odly...@umn.edu http://www.dtc.umn.edu/~odlyzko/doc/mania03.pdf Bubbles, gullibility, and other challenges for economics, psychology, sociology, and
Re: off-topic: historical query concerning the Internet bubble
They were private peering stats (aggregated) from UUNET which show 3.5 x for roughly two years, right before the MPLS conference in GMU. The stats included 15% or whatever% ATM cell tax. ANS was not included;-) There was also another dimension. In addition to the vertical growth. The backbone also expanded horizontally (coverage/millage), in a very rapid pace. I guess this was the reason some said the growth rate was double digits. I'm not sure simplify the math can explain the complexity of the network growth. Of cause, this is another topic. Min On Fri, Aug 6, 2010 at 5:52 PM, Jessica Yu jyy...@yahoo.com wrote: I have a concern that your posting and your paper mix UUNet traffic with the Internet traffic. I personally was very much involved in the ISP world (was working for Tier1 ISPs) during the period and I’d like to point out the following: UUNet’s (or any other individual network’s) traffic does NOT equal to the Internet traffic, even at that time! I was working at ANSnet and later UUnet due to a three party acquisition deal between AOL, WorldCom and CompuServe during that time period. I did hear presentations about network traffic being doubling every 100 days by O’Dell but my understanding was that he was referring to UUnet’s traffic not the Internet traffic. At the time, the Tier 1 ISPs included UUNet, MCI Network, Sprint Network, ANSnet, etc. Each ISP could only collect network traffic stats on its own backbone and there was no one entity could collect the entire Internet traffic. For this reason, the prediction by O’Dell could only be based on UUNet’s traffic stats. I really doubt that O’Dell would say the Internet traffic doubling every 100 days rather than saying that of UUNet’s traffic. I’d encourage you to do some research to find out if he was really referring to the Internet traffic or just UUNet traffic. The reference listed by your paper showed that he was saying ‘network traffic’ not ‘Internet traffic.’ I do not know if making such distinction would alter the conclusion of your paper. But, to me, there is a difference between one to predict the growth of one particular network based on the stats collected than one to predict the growth of the entire Internet with no solid data. Thanks!--Jessica From: Andrew Odlyzko odly...@umn.edu To: nanog@nanog.org Sent: Thu, August 5, 2010 11:38:38 AM Subject: off-topic: historical query concerning the Internet bubble Apologies for intruding with this question, but I can't think of any group that might have more concrete information relevant to my current research. Enclosed below is an announcement of a paper on technology bubbles. It is based largely on the Internet bubble of a decade ago, and concentrates on the Internet traffic doubling every 100 days tale. As the paper shows, this myth was perceived in very different ways by different people, and this by itself helps undermine the foundations of much of modern economics and economic policy making. To get a better understanding of the dynamics of that bubble, to assist in the preparation of a book about that incident, I am soliciting information from anyone who was active in telecom during that period. I would particularly like to know what you and your colleagues estimated Internet traffic growth to be, and what your reaction was to the O'Dell/Sidgmore/WorldCom/UUNet myth. If you were involved in the industry, and never heard of it, that would be extremely useful to know, too. Ideally, I would like concrete information, backed up by dates, and possibly even emails, and a permission to quote this information. However, I will settle for more informal comments, and promise confidentiality to anyone who requests it. Andrew Odlyzko odly...@umn.edu http://www.dtc.umn.edu/~odlyzko/doc/mania03.pdfhttp://www.dtc.umn.edu/%7Eodlyzko/doc/mania03.pdf Bubbles, gullibility, and other challenges for economics, psychology, sociology, and information sciences Andrew Odlyzko School of Mathematics and Digital Technology Center University of Minnesota odly...@umn.edu http://www.dtc.umn.edu/~odlyzkohttp://www.dtc.umn.edu/%7Eodlyzko Preliminary version, August 5, 2010 ABSTRACT Gullibility is the principal cause of bubbles. Investors and the general public get snared by a beautiful illusion and throw caution to the wind. Attempts to identify and control bubbles are complicated by the fact that the authorities who might naturally be expected to take action have often (especially in recent years) been among the most gullible, and were cheerleaders for the exuberant behavior. Hence what is needed is an objective measure of gullibility.
Re: Recommended 1Gb SFP for ~115km?
Finisar can accommodate you http://www.sanspot.com/Finisar-SFP-Transceiver-p/finisar-sfp.htm -henry From: Robert Blayzor rblayzor.b...@inoc.net To: Abello, Vinny vinny_abe...@dell.com Cc: nanog@nanog.org Sent: Fri, August 6, 2010 10:52:17 AM Subject: Re: Recommended 1Gb SFP for ~115km? On Aug 4, 2010, at 12:27 PM, Abello, Vinny wrote: Thanks for the input, Justin. I'm familiar with Transition Networks and have used their solutions in other scenarios (as well as MRV). I'm aware of the fiber characteristics being a major factor of the link budget and dispersion, etc. I am waiting on measurements from the company who is finishing the splicing of the fiber for us so I know what I have to work with. If you're fine with 3rd party optics, FluxLight has BIDI SFP's that will reach up to 120km. http://www.fluxlightinc.com/prod.php?id=309 They show up as Cisco SFP's right in the switch/router. I've had good luck with the 40 80km ones in the past. -- Robert Blayzor INOC, LLC rblay...@inoc.net http://www.inoc.net/~rblayzor/
