LANDER:internet outage survey it42w-20110726 From Predict README version: 3240, last modified: 2012-12-21. This file describes the trace dataset "internet_outage_survey_it42w-20110726" provided by the LANDER project. The most recent version of this file can be found on-line at http://wiki.isi.edu/predict/index.php/LANDER:internet_outage_survey_it42w-20110726. LANDER Metadata http://wiki.isi.edu/predict/index.php/LANDER:internet_outage_survey_it42w-20110726/landermeta) +----------------------------------------------------------------------------------------------------------------+ |dataSetName |internet_outage_survey_it42w-20110726 | |--------------------------+-------------------------------------------------------------------------------------| |status |usc-web-and-predict | |--------------------------+-------------------------------------------------------------------------------------| |shortDesc |outages in a sample of IPv4 /24 blocks | |--------------------------+-------------------------------------------------------------------------------------| |longDesc |To collect this data, a subset of Internet IP address blocks were pinged by sending | | |ICMP ECHO_REQUEST (PING) packet. The response (if it ever came within 11 minutes time| | |interval) was recorded in this data set. Probe was repeated every 11 minutes. In all,| | |approximately 20k /24 subnets were periodically reprobed. Outages are analyzed and | | |reported on the responses. | |--------------------------+-------------------------------------------------------------------------------------| |datasetCategory |InternetTopologyData | |--------------------------+-------------------------------------------------------------------------------------| |datasetSubCategory |Network Outage Data | |--------------------------+-------------------------------------------------------------------------------------| |requestReviewRequired |true | |--------------------------+-------------------------------------------------------------------------------------| |productReviewRequired |false | |--------------------------+-------------------------------------------------------------------------------------| |ongoingMeasurement |false | |--------------------------+-------------------------------------------------------------------------------------| |collectionStartDate |2011-07-26 | |--------------------------+-------------------------------------------------------------------------------------| |collectionStartTime |21:05:48 | |--------------------------+-------------------------------------------------------------------------------------| |collectionEndDate |2011-08-08 | |--------------------------+-------------------------------------------------------------------------------------| |collectionEndTime |07:31:31 | |--------------------------+-------------------------------------------------------------------------------------| |availabilityStartDate | | |--------------------------+-------------------------------------------------------------------------------------| |availabilityStartTime | | |--------------------------+-------------------------------------------------------------------------------------| |availabilityEndDate | | |--------------------------+-------------------------------------------------------------------------------------| |availabilityEndTime | | |--------------------------+-------------------------------------------------------------------------------------| |anonymization |false | |--------------------------+-------------------------------------------------------------------------------------| |archivingAllowed | | |--------------------------+-------------------------------------------------------------------------------------| |keywords |ip-address, sweep, address-collection, ping, icmp, no-IP-anonymization | |--------------------------+-------------------------------------------------------------------------------------| |format |text, binary | |--------------------------+-------------------------------------------------------------------------------------| |access |https | |--------------------------+-------------------------------------------------------------------------------------| |hostName |USC-LANDER | |--------------------------+-------------------------------------------------------------------------------------| |privateAccessInstructions |See http://www.isi.edu/ant/traces/index.html#getting_datasets for information on | | |obtaining this dataset. | | |See | | |http://wiki.isi.edu/predict/index.php/LANDER:internet_outage_survey_it42w-20110726 | | |for details on this dataset. | +----------------------------------------------------------------------------------------------------------------+ Dataset Contents internet_outage_survey_it42w-20110726.README.txt copy of this README outage.fsdb outage information for each block graphical representation outages.png of outage information for a survey Data Format Data is in FSDB format: hexip ip no_data num_rounds density outages hexip: hex format of /24 IP block ip: decimal format of /24 IP block no_data: rounds where we have no useful data (usually when there is an local outage) num_rounds: number of 11-minute rounds in this survey, for this block density: average response rate of this block outages: the rounds that we detect outages, in the format of a-b;c-d. (a,b,c,d are all rounds) Collection Method Data collection involves pinging a fraction of allocated address blocks. Full description of this method is in: Lin Quan, John Heidemann and Yuri Pradkin. Detecting Internet Outages with Precise Active Probing (extended). ISI-TR-2012-678. February, 2012 http://www.isi.edu/~johnh/PAPERS/Quan12a.html. This specific work involved probing all addresses in each of about 20k /24 blocks for about 2 weeks. Using icmptrain, the tool described in: John Heidemann, Yuri Pradkin, Ramesh Govindan, Christos Papadopoulos, Genevieve Bartlett, and Joseph Bannister. Census and Survey of the Visible Internet. In Proceedings of the ACM Internet Measurement Conference, p.169-182. Vouliagmeni, Greece, ACM. October, 2008 http://www.isi.edu/~johnh/PAPERS/Heidemann08c.html. Probing Location(s) The probing locations for outage surveys are indicated in their names. A "w" means west, which is from isi.edu in Marina del Rey, California; "c" means center, from colostate.edu, in Ft. Collins, Colorado; "e" means east which is from east.isi.edu, from Arlington, Virginia. See Dataset Contents for more information on the system who did the survey. Beginning/Ending Date and Time Zone Dates/Times specified in the metadata are in UTC. Citation If you use this trace to conduct additional research, please cite it as: Internet Outages dataset, PREDICT ID: USC-LANDER/internet_outage_survey_it42w-20110726/rev3240 . Traces taken 2011-07-26 to 2011-08-08. Provided by the USC/LANDER project (http://www.isi.edu/ant/lander). User Annotations Suggestion: Edit the annotations at http://wiki.isi.edu/predict/index.php?title=LANDERNOTES:internet_outage_survey_it42w-20110726action=edit Currently no annotations. Categories Retrieved from "http://wiki.isi.edu/predict/index.php?title=LANDER:internet_outage_survey_it42w-20110726oldid=3240" Categories: * LANDER:PredictCategory:InternetTopologyData * LANDER:PredictCategory:InternetTopologyData/Network Outage Data * Datasets * LANDER * LANDER:Datasets * LANDER:Datasets:AddressSpace:Production Outage * LANDER:Datasets:AddressSpace