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PingER: Navigating the web site and mining the data

PingER: Navigating the web site and mining the data. DRAFT. Les Cottrell SLAC Workshop at the University of Malaya (UM), Kuala Lumpur, June 24-25, 2013. Agenda. Navigating the PingER web site Accessing and viewing analyzed data Downloading and mining with Excel etc. Managing the system.

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PingER: Navigating the web site and mining the data

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  1. PingER: Navigating the web site and mining the data DRAFT Les CottrellSLAC Workshop at the University of Malaya (UM), Kuala Lumpur, June 24-25, 2013

  2. Agenda • Navigating the PingER web site • Accessing and viewing analyzed data • Downloading and mining with Excel etc. • Managing the system

  3. PingER home site • Set bookmark at http://www-wanmon.slac.stanford.edu/cgi-wrap/pingtable.p • Prefer Chrome or Firefox, mostly works with MSIE • Public face ofPingER

  4. Home site menu bar: Introduction • Provides: • Upper level information • An IEEE publication • Technical details • Etc.

  5. Home page: Visualizations • Click on African Internet Weather • Congestion wave • Monitoring sites/ participants • Hosts per country by region

  6. Access to PingER site map • Provides site map & • Geographical deployment maps PingER site map

  7. PingER site map

  8. Home page Icons access • Pingtable: workhorse of PingER analysis • Summary table of country to country connections • Google map of PingER hosts • Google Explorer • Motion Metrics Bubble chart

  9. Form Table Pingtable Help • This is the workhorse • www.slac.stanford.edu/cgi-wrap/pingtable.pl UNIMAS Workshop, Sarawak, Dec 2012

  10. Pingtable: Help What to click on Coloring by thresholds Help on table content etc., Technical assistance on metrics meanings etc, UNIMAS Workshop, Sarawak, Dec 2012

  11. Host labeling • Host labeled <country>.<site>.. (most important 1st). • Assist in sorting etc. UNIMAS Workshop, Sarawak, Dec 2012

  12. Pingtable: Scroll right for host names etc. • Get Internet host name, TLD and region for each host pair UNIMAS Workshop, Sarawak, Dec 2012

  13. Pingtable: Form selection eGY Africa 2012 Workshop, Nairobi Oct 2012

  14. Pingtable: Metric selection • Pull down to select from Avg RTT, jitter (ipdv), loss, throughput, MOS etc. UNIMAS Workshop, Sarawak, Dec 2012

  15. Pingtable: Select tick (time window) • Pull down to select: hourly, daily, monthly, yearly etc. UNIMAS Workshop, Sarawak, Dec 2012

  16. Pingtable: Select From (Monitor(s)) • Pull down to select monitoring node(s): single monitoring host or all monitors in a country or region etc. UNIMAS Workshop, Sarawak, Dec 2012

  17. Pingtable: Select To (monitored host or site) • Pull down to select To node(s): single monitored host/site or all hosts/sites in a country or region etc. UNIMAS Workshop, Sarawak, Dec 2012

  18. Aggregate all hosts in a site • Pull down to select whether to aggregate all hosts in a site into one measurement UNIMAS Workshop, Sarawak, Dec 2012

  19. Select packet size UNIMAS Workshop, Sarawak, Dec 2012

  20. Pingtable: Select host type • Pull down to select type of hosts to display: All, Monitoring, Beacons, Remote UNIMAS Workshop, Sarawak, Dec 2012

  21. Pingtable: other choices • Change dataset: no longer any other choices • Data points: removes pairs with little data • Filter: Removes known anomalous data UNIMAS Workshop, Sarawak, Dec 2012

  22. Pingtable: Load selected data • Click on Load into table and wait while data loads and display is rendered UNIMAS Workshop, Sarawak, Dec 2012

  23. Pingtable: Active links UNIMAS Workshop, Sarawak, Dec 2012

  24. Pingtable: Sorting • Click on column heading: • Sorts by host name, host type (? Monitor|Beacon|remote), metric value, TLD, Region UNIMAS Workshop, Sarawak, Dec 2012

  25. Pingtable ? • Click ? for more info • Details on hosts, • Latest raw data, • Format (see http://www-iepm.slac.stanford.edu/pinger/tools/retrievedata.html#rawdataformat) • Summarized data UNIMAS Workshop, Sarawak, Dec 2012

  26. Pingtable (?): More information on pair • Select ‘From’ as EDU.SLAC.STANFORD.N3 & Load into Table • Click on ? • Provides info from database on hosts, e.g.: • Lat/lon, location, web site, comments etc. UNIMAS Workshop, Sarawak, Dec 2012

  27. Pingtable: Rawdata • Useful for seeing exactly when a host disappears or is reachable again by PingER , e.g. in case of events such as loss of Internet connectivity due to earthquakes, cable cuts, uprisings UNIMAS Workshop, Sarawak, Dec 2012

  28. Pingtable(?): Summarized data Latest summarized data from (pinger.slac.stanford.edu): click here • Provides summary statistics (min, avg, median max) for all chosen remote hosts seen from monitor, for 100 &1000 Byte pings • Plus the slope of Bytes vs. RTT UNIMAS Workshop, Sarawak, Dec 2012

  29. Graphs of usage (via ?) • Time series plot of RTT & Loss last 7 days including today so far from MY.UNIMAS.N4(pinger.unimas.my) to MY.UMT.EDU.N1(www.umt.edu.my):  click here, add csv file. 100% loss =unreachable UNIMAS Workshop, Sarawak, Dec 2012

  30. Graphs of RTT • Valuable if do not have Smokeping graphs, e.g. for non SLAC monitors • One day I will fix the tick marks. • Also add csv file and cut and paste into Excel for more elegant plots UNIMAS Workshop, Sarawak, Dec 2012

  31. Pingtable: (?) Dynamic on demand traceoute • Uses traceroute server available at most PingER monitors • Click on Current traceroute using  http://www-wanmon.slac.stanford.edu/cgi-bin/nph-traceroute.pl?target=www.uda.ad UNIMAS Workshop, Sarawak, Dec 2012

  32. Traceroutes • Measured once per day UNIMAS Workshop, Sarawak, Dec 2012

  33. Traceroutes: Form • Can select 3 days to view concurrently to look for important changes • Also can select the remote host • Currently only available for SLAC monitoring host UNIMAS Workshop, Sarawak, Dec 2012

  34. Traceroute: format Traceroute for First selected date www-wanmon.slac.stanford.edu_to_www.uda.ad_2012_11_30 1 rtr-servcore1-serv01-webserv.slac.stanford.edu (134.79.197.130) 0.452 ms2 rtr-core2-p2p-servcore1.slac.stanford.edu (134.79.252.162) 0.336 ms3 rtr-border1-p2p-core2.slac.stanford.edu (134.79.252.137) 0.388 ms4 slac-mr2-p2p-rtr-border1.slac.stanford.edu (192.68.191.245) 0.284 ms5 sunnsdn2-ip-slacmr2.es.net (134.55.217.2) 0.622 ms6 sunncr1-sunnsdn2.es.net (134.55.209.98) 0.714 ms7 eqxsjrt1-te-sunncr1.es.net (134.55.38.146) 1.138 ms8 *9 xe-4-1-0.par72.ip4.tinet.net(89.149.181.146) 151.131 ms10 interoute-gw.ip4.tinet.net (77.67.75.238) 209.653 ms11 ae1-0.mad-001-score-1-re1.interoute.net (89.202.161.21) 178.515 ms12 ae0-0.mad-001-score-2-re0.interoute.net (89.202.161.18) 178.086 ms13 ae1-0.bcn-002-score-1-re1.interoute.net (217.118.118.237) 178.303 ms14 (195.81.193.146) 176.546 ms15 *16 * UNIMAS Workshop, Sarawak, Dec 2012

  35. More Traceroutes • Background information on traceroute servers • http://www.slac.stanford.edu/comp/net/wan-mon/traceroute-srv.html • List of servers by country: • http://www.traceroute.org/ UNIMAS Workshop, Sarawak, Dec 2012

  36. PingER traceroute servers API • Most PingER installations have traceroute servers. • Perl API and web accessible xml file for database can be found by accessing file http://www-iepm.slac.stanford.edu/pinger/pingerworld/nodes.cf, see comment at start • This can be used to find out about PingER hosts & in particular PingER traceroute servers

  37. Pingtable: Smokeping • Click on the SLAC monitoring host in a line • Not available for other monitors UNIMAS Workshop, Sarawak, Dec 2012

  38. Pingtable: Smokeping graph • Background is colored for loss (see legend) • Black not reachable • Red 50%-90% loss • Magenta 20%-40% loss • Orange 5%-10% loss • Light yellow 0%-5% loss • Cyan 0% loss UNIMAS Workshop, Sarawak, Dec 2012

  39. Pingtable: Smokeping Blue line average RTT, Smoke=jitter X axis in GMT Y axis in seconds (m = msec) Start and end times given in legend Summary statistics given in legend UNIMAS Workshop, Sarawak, Dec 2012

  40. Pingtable: Smokeping graph Form • Allows time window selection (also icons) • Size of graph, manual scaling • Colors for losses UNIMAS Workshop, Sarawak, Dec 2012

  41. Pingtable:Summary table • At the bottom provides: • Summary stats (min, median, 95%, # pairs, etc.) for each time interval for chosen metric • Can click on columns heading to download statistic UNIMAS Workshop, Sarawak, Dec 2012

  42. Pingtable.pl extract summary • Summary table at end (e.g. access via wget) - Buried in the output from pingtable.pl is a comment line containing the summary data, forma (… = more of same)t: • <!--?+Oct2007+...+Nov2005,+0.141+...+737.923,,--> • <!--?+1998+...+2010,.+17.1429+...+35.7714+32.9469,--> • Each line of data is separated by a comma (,) • within a line each token is separated by a +. • The lines in turn are those from the 'Summary for Sites' table at the bottom of pingtable.pl output. • The first line gives the date, the second the min, the 3rd the 25%, the 4th the average, the 5th (i.e. \$lines[4]) line the median etc. • If there is no data for a token then there is an adjacent ++. UNIMAS Workshop, Sarawak, Dec 2012

  43. Download Pingtable data • First choose some simple, interesting data: • Select From = Malaysia • Select To = Malaysia • Metric = Average RTT • Tick-type = last 60 days UNIMAS Workshop, Sarawak, Dec 2012

  44. Pingtable: Downloading data & further analysis • Click here This report is also provided in downloadable tab-separated-value (.tsv) format for use with Excel. Chrome: Appears at bottom left of browser window. Drag it to desktop Firefox: box pops up, choose save. It should be in Downloads. Can try Start and Search for it MSIE: box pops up, choose ‘save as’ and save on the desktop UNIMAS Workshop, Sarawak, Dec 2012

  45. Open downloaded file with Excel • Right click the pingtable.pl icon (probably on desktop). • Choose “Open with” => “Choose Microsoft Excel”. • Open the file Dots = no data UNIMAS Workshop, Sarawak, Dec 2012

  46. Preamble to Excel analysis • Insert the URL where in a newline at the start • Delete columns A & C • Select all (e.g. click on top left hand corner of table) • Click on Replace in Home menu • Replace all cells with only a period with a null • Fix the date: take the Left most add in Excel format, the take the cell in next column to the right set =left one -1 and replicate right UNIMAS Workshop, Sarawak, Dec 2012

  47. Draw chart • Select relevant data (e.g. a2:bf13) • Click on Scatter chart under Insert Tab • Now it’s a matter of improving the format to better understand the data UNIMAS Workshop, Sarawak, Dec 2012

  48. Icons access • Table of country to country connections • Maps of metric performance by Country • Maps of number of PingER hosts by country • Google map of PingER hosts • Motion Metrics Bubble chart UNIMAS Workshop, Sarawak, Dec 2012

  49. PingER Summary Table • URL= www.slac.stanford.edu/cgi-wrap/table.pl • Patience takes a long time Metric Help Choose area aggregation Month UNIMAS Workshop, Sarawak, Dec 2012

  50. Drilling down • Colors represent quality • Click on headings & values to drill down to pingtable UNIMAS Workshop, Sarawak, Dec 2012

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