1 / 13

Navigating PingER

Navigating PingER. Les Cottrell – SLAC Presented at the Optimization Technologies for Low-Bandwidth Networks, ICTP Workshop, Trieste, Italy, 9-20 October 2006 http://www.slac.stanford.edu/grp/scs/net/talk06/pinger-navig.ppt.

kaloni
Download Presentation

Navigating PingER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Navigating PingER Les Cottrell – SLAC Presented at the Optimization Technologies for Low-Bandwidth Networks, ICTP Workshop, Trieste, Italy, 9-20 October 2006 http://www.slac.stanford.edu/grp/scs/net/talk06/pinger-navig.ppt Partially funded by DOE/MICS Field Work Proposal on Internet End-to-end Performance Monitoring (IEPM), also supported by IUPAP

  2. Get ready • Bring up terminal window so can try some commands • Bring up the presentation so can click on links: • www.slac.stanford.edu/grp/scs/net/talk06/diag-demos.ppt

  3. Aim • Traceroute • PingER • ViPER • PingWorld • Locating Hosts • TULIP

  4. Traceroute examples • Try: • traceroute ba59-97-hsrp-144.nrl.navy.mil #or tracepath • traceroute –I ba59-97-hsrp-144.nrl.navy.mil • traceroute pheezer.uits.iupui.edu • traceroute –I pheezer.uits.iupui.edu • Do a man traceroute to understand the ! Codes, also see RFC1812

  5. Help yourself to PingER data • Main PingER site: • www-iepm.slac.stanford.edu/pinger • PingER results: • www-iepm.slac.stanford.edu/cgi-wrap/pingtable.pl • Try using table to choose from=ZA.TENET.AC.ZA to=WORLD, metric==minimum-RTT, tick-type=last 120 days • Then click on Load into table • Note: • hostnames written in reverse form for improved sorting • entries colored by quality • Click on ? For more information on hosts • Help www-iepm.slac.stanford.edu/pinger/tools/table.html • Scroll right to see more countries, regions • Summary table at bottom • Can sort by clicking on headings

  6. PingER continued • Click on name of node, eg. TW.SINICA.EDU.N1 • Change first month to Aug (can also choose metric etc.) • Scroll down click on Generate Graphs • Change: From=IT.ICTP.N1, To=World, Tick=daily • www-iepm.slac.stanford.edu/cgi-wrap/pingtable.pl?file=packet_loss&by=by-site&size=100&tick=daily&from=IT.ICTP.N1&to=WORLD&ex=none&dataset=hep&percentage=any • Can download for Excel & further analysis • Pinger Group History table • www-iepm.slac.stanford.edu/cgi-wrap/table.pl

  7. Exec style plots • www.slac.stanford.edu/comp/net/wan-mon/pingerplots/trendline/trendline.jnlp • Right click on graph area, click on add/remove Trendlines/points • Also note: • write parameters to csv file • Toggle log/linear

  8. Viz for PingER (ViPER) • www.slac.stanford.edu/comp/net/wan-mon/viper/ • Select From & To, metric and Show links • Colored by performance, shows regions, mouseover • Can select multiple To’s • Can show plots

  9. PingWorld • www-iepm.slac.stanford.edu/tools/pingworld/ • Can ping from your host to sites around the world • Needs Java Webstart

  10. Locating Hosts AS gives information on ‘ISPs’ running networks • Perl script to get ASN information: • confluence.slac.stanford.edu/display/IEPM/ASN.pl • Tricky example: find ui.edu.ng • Nslookup/dig gives IP addr = 69.33.174.209 • AKA fallback.skannet.com • http://www.geoiptool.com/ says it is N. California • So does www.ip2location.com/free.asp (69.33.174.209) • RTT from SLAC is ~200ms! • www.slac.stanford.edu/cgi-bin/traceroute.pl?target=ui.edu.ng&function=ping • http://www.fixedorbit.com/search.htm shows AS23215 • http://bgp.potaroo.net/cidr/autnums.html shows AS23215 in Pleasanton California • From New York 20ms

  11. TULIP/Octant • Octant http://www.cs.cornell.edu/~bwong/octant/ • Geolocation based on RTTs, excellent for US • www.slac.stanford.edu/comp/net/wan-mon/tulip • Attempts to work for Developing Regions • Needs Java Webstart • Try for www.slac.stanford.edu • File=>Sort Min_RTT • Visualization=>Plot IP on Map • DiscoveryStatistics=>MinRTT plots • Double click on line in Ping Results to do ping • Double click on line in Traceroute Reports to make trace • Try ui.edu.ng (replicated)

  12. Web page examples: Case studies • http://www.slac.stanford.edu/grp/scs/net/case/html/ • http://e2epi.internet2.edu/case-studies/

  13. More Information • Tutorial on monitoring • www.slac.stanford.edu/comp/net/wan-mon/tutorial.html • RFC 2151 on Internet tools • www.freesoft.org/CIE/RFC/Orig/rfc2151.txt • Network monitoring tools • www.slac.stanford.edu/xorg/nmtf/nmtf-tools.html • www.caida.org/tools/taxonomy/ • Network Performance Tools: an I2 Cookbook • e2epi.internet2.edu/network-perf-wk/tools-cookbook.pdf • Network Monitoring sites • www.slac.stanford.edu/comp/net/wan-mon/netmon.html

More Related