http://www.caida.org/ Recent announcements, publications, and web updates from the Cooperative Association for Internet Data Analysis (CAIDA). What's New http://blog.caida.org/best_available_data/2008/03/28/ditl-2008-phase-one-complete/ Fri, 28 Mar 2008 00:00:00 GMT (Blog Entry) CAIDA, ISC, OARC, and The Measurement Factory managed to repeat our annual Day in the Life of the Internet data collection experiment this year using a 2-day window of 18-19 March 2008. ... we gathered much more data than last year (2.5x more in bytes) with considerably less pain. So although it reflects only a slice of Internet activity, we believe this is (again) the largest synchronized data set about the Internet ever made available to the research community. What's New http://www.caida.org/research/dns/roottraffic/comparison06_07.xml Fri, 28 Mar 2008 00:00:00 GMT During the last two years, CAIDA and the Operations, Analysis, and Research Center (OARC) have coordinated and conducted annual, large-scale collection events targeting the DNS root nameservers in an attempt to capture A Day In The Life of the Internet (DITL). This page characterizes traffic captured at anycast instances of the C, F, and K DNS root nameservers during these two measurement events held during the first Tuesday and Wednesday of the month in January 2006 and January 2007. What's New http://ucsdnews.ucsd.edu/newsrel/supercomputer/02-08InternetUniverse.asp Fri, 21 Mar 2008 00:00:00 GMT 3-D hyperbolic geometric Walrus plot generated by CAIDA/SDSC will be part of a special exhibit set to open later this month at the Museum of Modern Art in New York. What's New http://www.caida.org/projects/predict/ Wed, 19 Mar 2008 00:00:00 GMT The Protected Repository for the Defense of Infrastructure Against Cyber Threats provides vetted researchers with current network operational data. CAIDA participates in the PREDICT program as a Data Provider via the collection of routing data, peering point passive traces, and denial-of-service attack and Internet worm data from the UCSD Network Telescope. What's New http://www.caida.org/data/statistics/all-data.xml Wed, 19 Mar 2008 00:00:00 GMT CAIDA makes seven datasets freely available to anyone who wishes to download the data, and nine datasets available to registered academic, government, and non-profit researchers and CAIDA members. This summary of the use of CAIDA datasets is updated daily. What's New http://www.caida.org/research/topology/as_core_network/ipv6.xml Fri, 14 Mar 2008 00:00:00 GMT The 2008 visualization of the IPv6 AS level topology, generated from a macroscopic snapshot of the IPv6 Internet topology collected between January 2nd and 8th, 2008. What's New http://www.caida.org/research/topology/as_core_network/ Fri, 14 Mar 2008 00:00:00 GMT The 2008 AS Core visualization of the IPv4 AS level topology, generated from a macroscopic snapshot of the Internet for two weeks: 1-17 January 2008. What's New http://www.caida.org/projects/ditl/questions/ Wed, 20 Feb 2008 00:00:00 GMT The following questions were contributed by researchers during discussion of the Day in the Life of the Internet (DITL) project at the January 2008 CAIDA/WIDE workshop. The list serves as inspiration for DITL participation, it includes questions that require data not currently, but we hope eventually, included in DITL collections.. What's New http://www.caida.org/publications/presentations/2008/nanog_dw_ditl Wed, 20 Feb 2008 00:00:00 GMT This slideset was presented at the NANOG42 workshop. What's New http://www.caida.org/research/topology/as_core_network/2007/ Sun, 17 Feb 2008 00:00:00 GMT The long-awaited 2007 AS Core visualization of the IPv4 AS level topology, generated from a 2007 AS Core visualization of the IPv4 AS level topology. What's New http://www.caida.org/projects/macroscopic Fri, 8 Feb 2008 00:00:00 GMT On Feb 8, 2008, after 10 years of data collection and 4TB of data, we deactivated skitter data collection and transitioned to our next generation topology measurement infrastructure named Archipelago (Ark). We already perform large-scale topology measurements on Ark, and we recommend researchers use this new dataset, which employs an improved measurement methodology. The new IPv4 Routed /24 Topology Dataset collected on Ark extends back to Sep 13, 2007 and overlaps with the last five months of skitter data. What's New http://www.caida.org/data/passive/passive_2007_dataset.xml Fri, 1 Feb 2008 00:00:00 GMT This dataset contains anonymized passive traffic traces from CAIDA's AMPATH monitor on an OC12 link at the AMPATH Internet Exchange during the Day in The Life of the Internet (DITL) measurement event (Jan 9 and Jan 10 2007). CAIDA also makes near-realtime traffic reports available continuously from the AMPATH monitor. What's New http://www.caida.org/data/passive/backscatter_2007_dataset.xml Fri, 1 Feb 2008 00:00:00 GMT This dataset was updated with data for quarter 4 (November) and data for the DITL measurement event (Jan 9 and Jan 10 2007). What's New http://www.caida.org/data/active/ipv4_routed_24_topology_dataset.xml Fri, 1 Feb 2008 00:00:00 GMT This dataset contains large-scale traceroute measurements from more than a dozen monitors distributed around the world running CAIDA's new Archipelago (Ark) measurement platform. The monitors probe a random destination in every routed /24 (currently around 7M in the global routing tables) on an ongoing basis. Data collection began in September 2007. With the availability of the new IPv4 Routed /24 Topology Dataset, we are switching over our topology measurements from the old skitter monitor infrastructure to the new Ark infrastructure. skitter data will no longer be collected beginning February 8 2008, though historical skitter data will continue to be made available. What's New http://www.caida.org/workshops/wide/0801/ Sat, 19 Jan 2008 00:00:00 GMT The ninth CAIDA/WIDE Workshop will be held on January 19-20, 2008 (by invitation only) in the East-West Center on the University of Hawaii campus as part of Techs in Paradise (TIP2008).the Electronic Visualization Laboratory, University of Illinois at Chicago, IL. The main areas of the Workshop are: Internet measurement projects and DNS. It will also cover miscellaneous research and technical topics of mutual interest for CAIDA and WIDE participants. Jan 19-20 What's New http://public.oarci.net/oarc/workshop-2007 Tue, 16 Oct 2007 00:00:00 GMT The 3rd DNS-OARC Workshop was held on November 2-3, 2007 in Los Angeles, CA. The focus of this workshop was on: * Review of current DNS-related research * Development of the Doman Statistics Collector (DSC) toolset * Tutorial on DLV * Topical issues in DNS Operations * OARC Members-only session Nov 2-3 What's New http://www.caida.org/data/passive/backscatter_2007_dataset.xml Fri, 19 Oct 2007 00:00:00 GMT Backscatter Dataset for 2007. What's New http://www.caida.org/research/id-consumption/census-map/ Fri, 12 Oct 2007 00:00:00 GMT A visualization of IPv4 addresses that respond to ICMP (ping) packets during a two-month (very slow) scan of the IPv4 address space. Some hosts do not respond to the probes due to firewalls, NAT boxes and ICMP filtering. Thus, the data and map give us a lower bound on IPv4 address utilization. What's New http://www.caida.org/research/id-consumption/whois-map/ Tue, 9 Oct 2007 00:00:00 GMT A visualization of the characteristics of IPv4 "whois" data from the five Regional Internet Registries (RIRs). This visualization of the characteristics of IPv4 WHOIS data was created by The Measurement Factory under subcontract to CAIDA. What's New http://www.caida.org/publications/presentations/2007/nuggets2007-09/ Tue, 18 Sep 2007 00:00:00 GMT Slideset presented to IBM-Cambridge and NIST What's New http://www.caida.org/research/dns/cl/animated_maps Wed, 8 Aug 2007 00:00:00 GMT This report presents the results of a controlled "anycast switching" experiment conducted on the Chilean .CL ccTLD anycast infrastructure. Using traces from the .CL anycast cloud, we measure the time it takes for a client to get redirected from a failing node to the next available node. What's New http://www.caida.org/research/dns/cl/anycast_switching Wed, 8 Aug 2007 00:00:00 GMT This report presents the results of a controlled "anycast switching" experiment conducted on the Chilean .CL ccTLD anycast infrastructure. Using traces from the .CL anycast cloud, we measure the time it takes for a client to get redirected from a failing node to the next available node. What's New http://www.caida.org/workshops/wide/0707/ Fri, 20 Jul 2007 00:00:00 GMT The eighth CAIDA/WIDE Workshop will be held on July 20 - 21, 2007 (by invitation only) in the Electronic Visualization Laboratory, University of Illinois at Chicago, IL. The main areas of the Workshop are: Internet measurement projects and DNS. It will also cover miscellaneous research and technical topics of mutual interest for CAIDA and WIDE participants. Jul 20-21 What's New http://www.caida.org/home/about/progplan/progplan2007/ Fri, 20 Jul 2007 00:00:00 GMT A summary of research goals and plans for CAIDA, for the period from May 2007 through April 2010.. What's New http://www.caida.org/projects/ditl/summary-2007-01/ Fri, 29 Jun 2007 00:00:00 GMT This page provides a summary of the January 9-10, 2007 collection event designed, coordinated, and hosted by CAIDA and the DNS Operations, Analysis, and Research Center (OARC). What's New http://www.caida.org/home/about/annualreports/2006/ Thu, 28 Jun 2007 00:00:00 GMT A report on CAIDA research activities, project progress and results, and financial status for 2006. What's New http://www.caida.org/research/dns/influence-map/ Wed, 27 Jun 2007 00:00:00 GMT Updated with 2007 data, this visualization shows the geographic distribution of DNS clients for anycast instances. We provide two world maps for each root, with individual anycast servers placed on the map at the "center of influence" of its observed clients. Wedges fanning out from each server indicate the direction, distance, and number of clients observed within the bounding angle of the wedge. What's New http://www.caida.org/publications/presentations/2007/terena_caida/ Wed, 23 May 2007 00:00:00 GMT This slideset was presented at the TERENA Networking Conference 2007 What's New http://www.caida.org/publications/presentations/2007/terena_security Wed, 23 May 2007 00:00:00 GMT This slideset was presented at the TERENA Networking Conference 2007 What's New http://www.caida.org/publications/presentations/2007/young_ark_syslunch Fri, 20 Apr 2007 00:00:00 GMT This slideset was presented at the UCSD CSE Syslunch on April 11, 2007. What's New http://www.caida.org/data/realtime/passive/?monitor=miami Mon, 2 Apr 2007 00:00:00 GMT The Miami FIU-AMPATH Monitor is a passive network monitor that displays traffic from an OC12 link connecting Florida International University, the AMPATH International Exchange Point, and Internet2 in Miami, Florida, USA. Report data collection for this link began on February 21, 2007. Papers http://www.caida.org/publications/papers/2008/self_similarity/ Fri, 18 Apr 2008 00:00:00 GMT Abstract for "Self-similarity of complex networks and hidden metric spaces". Papers http://www.caida.org/publications/papers/2007/orbis/ Fri, 28 Sep 2007 00:00:00 GMT Published in SIGCOMM '07, Auguest 27-31, 2007, Kyoto, Japan. Papers http://www.caida.org/publications/papers/2007/dns_anomalies/ Tue, 17 Jul 2007 00:00:00 GMT Abstract for "Passive Monitoring of DNS Anomalies" authored by Bojan Zdrnja, Nevil Brownlee, and Duane Wessels. Presented at the Fourth GI International Conference on Detection of Intrusions & Malware, and Vulnerability Assessment (DIMVA) in 2007. Papers http://www.caida.org/publications/papers/2007/compact_routing/ Tue, 10 Jul 2007 00:00:00 GMT Abstract for "On Compact Routing for the Internet" authored by Dima Krioukov, kc claffy, Kevin Fall, and Arthur Brady. Published in the ACM SIGCOMM Computer Communication Review (CCR), v.37, n.3, July 2007. Papers http://www.caida.org/publications/papers/2007/ieeecon/ Fri, 27 Apr 2007 00:00:00 GMT "The (un)Economic Internet?" authored by kc claffy, Sascha D. Meinrath, Scott O. Bradner. Presented at the Internet Economics Track in 2007. Papers http://www.caida.org/publications/papers/2007/dns_anycast/ Thu, 5 Apr 2007 00:00:00 GMT "Two Days in the Life of the DNS Anycast Root Servers" authored by Ziqian Liu, Bradley Huffaker, Marina Fomenkov, Nevil Brownlee, kc claffy. Presented at the Passive and Active Measurement (PAM) Conference in 2007. Papers http://www.caida.org/publications/papers/2006/wit/ Wed, 28 Feb 2007 00:00:00 GMT Final Report entitled "The Workshop on Internet Topology (WIT) Report" authored by Dmitri Krioukov, Fan Chung, kc claffy, Marina Fomenkov, Alessandro Vespignani, and Walter Willinger. Appeared in ACM SIGCOMM Computer Communication Review (CCR), v.37, n.1, pp. 69-73, 2007. Papers http://www.caida.org/publications/papers/2006/as_relationships_inference/ Wed, 28 Feb 2007 00:00:00 GMT Abstract for "AS Relationships: Inference and Validation" authored by Xenofontas Dimitropoulos, Dmitri Krioukov, Marina Fomenkov, Bradley Huffaker, Young Hyun, kc claffy, and George Riley. Appeared in ACM SIGCOMM Computer Communication Review (CCR), v.37, n.1, pp. 29-40, 2007. Tools http://www.caida.org/tools/measurement/coralreef/status.xml Fri, 1 Feb 2008 00:00:00 GMT Status of the CoralReef packages is available, as well as links to recent changes and download of the public package. Tools http://www.caida.org/tools/measurement/coralreef/status.xml Wed, 12 Dec 2007 00:00:00 GMT Status of the CoralReef packages is available, as well as links to recent changes and download of the public package. Tools http://www.caida.org/tools/measurement/coralreef/status.xml Mon, 30 Jul 2007 00:00:00 GMT Status of the CoralReef packages is available, as well as links to recent changes and download of the public package. Tools http://www.caida.org/tools/measurement/coralreef/status.xml Fri, 8 Jun 2007 00:00:00 GMT Status of the CoralReef packages is available, as well as links to recent changes and download of the public package. Tools http://www.caida.org/tools/measurement/iffinder/ Fri, 25 May 2007 00:00:00 GMT iffinder now available for public download. Please see the iffinder page for more information.