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40 GBit @ 240 GHz across 1 km LoS
by Eugen Leitl 17 May '13

17 May '13

Fraunhofer: http://www.iaf.fraunhofer.de/de/news-medien/pressemitteilungen/presse-2013-… Google Translate: New world record in data transmission by radio Press Release 16/05/2013 With a Langstreckendemonstrator between two skyscrapers in Karlsruhe, a distance of over a kilometer could already be bridged. © KIT The RF chip is only 4 x 1.5 mm2 large, since electronic components with the frequency or wavelength scale. © Fraunhofer IAF Researchers at the Fraunhofer Institute for Applied Solid State Physics IAF and the Karlsruhe Institute of Technology KIT, it is able to transmit 40 Gb / s at 240 GHz and over a distance of one kilometer by radio. With its recent demonstration they have achieved a new world record and establish for the first time seamlessly with the capacity of fiber to. Such future radio links could close gaps in the provision of broadband Internet by the wireless links complement the network of hard to reach areas or in rural areas. Digital, mobile and networked - the changing media usage behavior and require progressively increasing faster data transfer rates. The expansion of the fiber network in Germany is lagging behind European standards, such as the statistics of the industry organization FTTH Council Europe show. To lay fiber optic lines is expensive and in the case of natural or urban obstacles such as rivers and transport hubs difficult. Broadband radio links can help to overcome such critical points and so promote the expansion of network infrastructures. In rural areas, they provide a cost effective and flexible alternative to "Fibre To The Home 'in the expansion of broadband network dar. In the data transmission by radio researchers have set a new world record for the first time fully integrated electronic transmitter and receiver are designed for a frequency of 240 GHz, with which the data transfer rates up to 40 Gbit s is / possible. This corresponds to the transfer of a full DVD in less than a second or 2400 DSL16000 Internet connections. With a Langstreckendemonstrator a distance of over a kilometer could already be covered, which was built by the Karlsruhe Institute of Technology between two skyscrapers in the "Milli Link" project. "We have managed to develop a wireless link based on active electronic circuits similar to high data rates, such as fiber optic systems, and thus a seamless integration of the radio link allows" said Professor Ingmar Kallfass, the project initially at Fraunhofer IAF in looking a shared professorship - supported by IAF and KIT - coordinated. Kallfass since 2013 has been working at the University of Stuttgart, where he continued to lead the project. High frequencies allow fast data transfer The use of the high frequency range between 200 and 280 GHz not only enables the fast transfer of large amounts of data, but also a very compact technical structure. Since the dimensions of electronic circuits and antennas scalable with frequency or wavelength of the transmitter and receiver chip is 4 x 1.5 mm 2 in size. Developed at Fraunhofer IAF semiconductor technology based on transistors with high electron mobility transistor (HEMT) makes it possible to use the frequency range between 200 and 280 GHz with active transmitters and receivers in the form of compact, integrated circuits. In this frequency range, the atmosphere has low attenuation values, so that broadband radio links are possible. "This is our spark gap compared to optical data transmission systems easier to align and work in bad weather conditions such as fog or rain," explains Jochen antes from the KIT. So far, radio systems were not yet able to provide the bandwidth of an optical fiber directly. That could change in the future, as the test shows construction of the project. Such a powerful system possess the advantage of the so-called bit transparency, ie, the signal could be fed directly to a fiber without energy-intensive recoding in a radio link, transmit and re-routed at the other end with a glass fiber. The record data from the test set are just the beginning. "With an improvement in spectral efficiency through the use of complex modulation formats or combination of channels, ie multiplexing, we can achieve even higher data rates, 'said Antes is safe. This could be the expansion of broadband network a boost. Maybe Germany will in future no longer lies in Europe compared to the rear seats. About the project The project "Milli Link" is supported by the German Federal Ministry of Education and Research within the funding program "broadband access next generation networks" with a total of two million euros. Besides the two research institutes Fraunhofer IAF and KIT industry partner Siemens AG, Kathrein KG and Radiometer Physics GmbH are involved in the project. The aim of the project is the integration of wireless links or radio links in broadband optical communication networks in order to provide particular to rural areas with fast Internet access. Other possible applications include indoor wireless local area networks (WLAN), wireless personal area networks (WPAN), and intra-machine and board-to-board communication. Milli link Langstreckendemonstrator (print quality) [1.6095294952392578 MB JPG] Milli link radio frequency chip (print quality) [1.7061738967895508 MB JPG]

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BGP instability?
by Thomas St-Pierre 17 May '13

17 May '13

Hi, Did anyone else see a large amount of instability between around 12:20am and 3:10am? (UTC, May 17th) We saw around 9 million announces per hour during that period come in through all our upstreams (vs an average normal of around 128k per hour). Just curious as to what happened, if anything. Thanks, Thomas

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whoami.akamai.net
by Patrick W. Gilmore 16 May '13

16 May '13

As the whoami.akamai.net hostname came up on the list, I thought I'd mention it here. The hostname 'whoami.akamai.com' is a CNAME for whoami.akamai.net. That CNAME is, frankly, a mistake. It will be removed "soon". If you are using the .com name, please move to the .net name. -- TTFN, patrick

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Looking for Netflow analysis package
by Laura Smith 16 May '13

16 May '13

Hello Erik, Scrutinizer from http://www.plixer.com/ supports all of those features you listed and scales to over 100K flows/second. http://www.plixer.com/Scrutinizer-Netflow-Sflow/scrutinizer.html Good luck with your search. ------------------------------------------------------------------------------------------------------ Does anyone know of a netflow collector that will do the following. *Graph/List Destination Networks By Top AS *Graph/List Destination Networks By Top IP Address *AS Path Analysis *Traffic Type (ICMP, TCP, UDP, IPSEC, HTTP, SSH, SMTP, etc..) We will be using this to help us decide who to Peer with and what transit Providers to look at. I am familiar with Arbor Network's Peak Flow utility but it's a little too pricy. I also found AS-Stats https://neon1.net/as-stats/ look promising from the power point on their page. Thanks Erik

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Variety, On The Media, don't understand the Internet
by Jay Ashworth 16 May '13

16 May '13

Or I don't. Which is not completely impossible. In this piece: http://variety.com/2013/digital/news/netflix-puts-even-more-strain-on-the-i… they suggest that Akamai and other ISP-side caching is either not affecting these numbers and their pertinence to the "backbone" at all, or not much. Did they miss something? or did I? Cheers, -- jra -- Jay R. Ashworth Baylink jra(a)baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274

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Call for papers / DENOG5
by Hibler, Florian 16 May '13

16 May '13

Dear NANOG list, I just checked with grizz, before posting this request here. ****** DENOG 5 - Call for Participation and Papers The fifth meeting of the German Network Operators Group (DENOG) will be held in Darmstadt, Germany on the 14th of November 2013. We are pleased to hereby invite applications for presentations or lightning talks to be held at this event. General Information =================== DENOG is a community for professionals within Germany who are operating, designing or researching the Internet. It provides a technical forum where those working on, with and for the Internet can come together to solve problems with every aspect of their (net)work. The meeting is designed to provide an opportunity for the exchange of information among network operators, engineers, researchers and other professionals close to the network community. More information about DENOG (in German) can be found at http://www.denog.de/ Information about the meeting will be published at http://www.denog.de/meetings/ Meeting Countdown ================= What When ------------------------------------------------------ Publication of Call for Papers April 18th, 2013 Deadline for all submissions June 19th, 2013 Publication of final program August 16th, 2013 Deadline for receipt of final present. November 8th, 2013 Meeting Day November 14th, 2013 Topics for Presentations/Talks ============================== The day will be divided into several sessions. The number and length of presentations per session is not fixed, although due to time constraints we would prefer the length of the presentations to be between 15 to 30 minutes. However proposals whose subject fall outside of the topics below are also welcome; please do not hesitate to submit them. Topic #1: Virtual network infrastructure --------------------------------------------------- "Clouds" are everywhere. Virtualization is the way to consolidate servers and lower the cost as well as the administrative overhead. But what about virtualizing network infrastructure like routers, firewalls, etc.? We see certain approaches of these technologies on the market now. Which company would be the right target? How does it scale? Topic #2: Issues affecting the global internet infrastructure ------------------------------------------------------------- Cyber attacks, software bugs, route-hijacking incidents and denial of service attacks are common in todays internet, not only affecting single companies, carriers or enterprises but sometimes even entire countries. One of the examples was Cloudflare in March 2013. What was really affected? Was it "a global issue"? In this light securing the global internet infrastructure is a major topic amongst entities relying on the internet. Topic #3: Peering ------------------ Everything about your peering experience. Why are you doing it? How are you doing it? Have you written any useful tools which others might find interesting? What are the issues you are facing? Topic #4: Network & resource planning --------------------------- Around the world we see large companies consuming lots of bandwidth for new media services like YouTube, Netflix, Akamai etc. Forecasting and planning of capactiy is an essential part of quality assurance to keep your users/subscribers happy. What are the best techniques to evaluate traffic levels to certain providers? How to manage the flow of traffic in the best way under the aspect of commerical and engineering views? Topic #5: ISP BOF ----------------- "All things ISP". From Network/SLA Management (for or against it), abuse handling and log systems to data centre layout and planning (including power and cooling), everything that is interesting to you as an ISP can be presented or discussed within this topic. Lightning Talks --------------- In addition to the topics mentioned below we will reserve slots for lightning talks, which consist of a few slides and will not last longer than 5 minutes. Lightning talks can be submitted until November 8th, with the deadline for submission of the corresponding slides being November 13th. Language of Slides and Talks ============================ To appeal to an international audience we ask you to produce your slides in English, but the spoken language of the presentation itself can be either German or English. Submission Guidelines ===================== All submissions must have a strong technical bias and must not be solely promotional for your employer. Please remember that your presentations should be suitable for a target audience of technicians from varied backgrounds, working for companies whose sizes may vary considerably. To submit a proposal for a presentation, we request you to register at http://pc.denog.de/denog5/cfp If you have further questions, you can reach the program committee at denog-pc(a)denog.de. We also welcome suggestions for specific presentations which you feel would be valuable to the DENOG community. Please be aware that your presentation and a video of it will be published on the DENOG website after the event. For the DENOG programme committee, Florian Hibler

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"Network Engineering" Stack Exchange site in Area51 (fwd)
by Simon Lyall 15 May '13

15 May '13

The proposal currently needs just 13 more committers with 200+ SE points on any site... http://area51.stackexchange.com/proposals/52519/network-engineering The SE site proposal for 'network engineering' is so close to going into Beta. It's up to 441 committers, and is currently 7th overall, (of 800+ proposals,) on the "hottest proposal list. -- Simon Lyall | Very Busy | Web: http://www.darkmere.gen.nz/ "To stay awake all night adds a day to your life" - Stilgar | eMT.

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Spamcop Blacklist
by Clinton_Popovich＠McAfee.com 15 May '13

15 May '13

Anyone- We are having a bit of trouble with spamcop blocking 2 of our MTAs with IPs of 208.65.145.71 and 208.65.145.66. We have yet to receive any samples of the spam and do not seem to be able to submit for removal as it appears someone has attempted to do this for us and basically used up all our our requests for a period of time. Does anyone have a contact over at spamcop that might be able to assist us in removing these MTAs before this becomes a large issue or us and our customers? Below is the Bounce message we are receiving. Bounce message 554 Service unavailable; Client host [pXXcXXoXXX.mxlogic.net] blocked by bl.spamcop.net Just to let everyone know, we do vigorously monitor outbound spam traffic and take seriously any reports of spam from our network. If someone can get us a sample of what spamcop is see this would also help! Any help is greatly appreciated. Thanks, -- Clinton Popovich Linux Systems Administrator McAfee 9781 S. Meridian Blvd., Suite 400, Englewood, CO 80112 USA

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Looking for Netflow analysis package
by Erik Sundberg 15 May '13

15 May '13

Does anyone know of a netflow collector that will do the following. *Graph/List Destination Networks By Top AS *Graph/List Destination Networks By Top IP Address *AS Path Analysis *Traffic Type (ICMP, TCP, UDP, IPSEC, HTTP, SSH, SMTP, etc..) We will be using this to help us decide who to Peer with and what transit Providers to look at. I am familiar with Arbor Network's Peak Flow utility but it's a little too pricy. I also found AS-Stats https://neon1.net/as-stats/ look promising from the power point on their page. Thanks Erik ________________________________ CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, files or previous e-mail messages attached to it may contain confidential information that is legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of any of the information contained in or attached to this transmission is STRICTLY PROHIBITED. If you have received this transmission in error please notify the sender immediately by replying to this e-mail. You must destroy the original transmission and its attachments without reading or saving in any manner. Thank you.

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Borrow request (Chicago): Cat 4900M copper interface(s)
by ryan＠u13.net 15 May '13

15 May '13

Hello all, I'll spare you the details, but we are in need of some means to temporarily get a copper interface on at least one of our 4900M switches to narrow down a network performance issue. Does anyone have a 4900M half card with copper ports, or a Cisco TwinGig X2 adapter in the Chicago area? We would love to borrow one or two for a few days until we can locate and resolve this issue. Ryan

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