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Navigating PingER Les Cottrell – SLAC Presented at the Optimization Technologies for Low-Bandwidth Networks, ICTP Workshop,

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Presentation on theme: "Navigating PingER Les Cottrell – SLAC Presented at the Optimization Technologies for Low-Bandwidth Networks, ICTP Workshop,"— Presentation transcript:

1 http://sdu.ictp.it/lowbandwidth/ 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 Slide: 2 Les Cottrell, SLAC Get ready uBring up terminal window so can try some commands uBring up the presentation so can click on links: www.slac.stanford.edu/grp/scs/net/talk06/diag-demos.ppt

3 Slide: 3 Les Cottrell, SLAC Aim uTraceroute uPingER uViPER uPingWorld uLocating Hosts uTULIP

4 Slide: 4 Les Cottrell, SLAC Traceroute examples uTry: 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 uDo a man traceroute to understand the ! Codes, also see RFC1812

5 Slide: 5 Les Cottrell, SLAC Help yourself to PingER data uMain PingER site: www-iepm.slac.stanford.edu/pinger uPingER 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.htmlwww-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 Slide: 6 Les Cottrell, SLAC PingER continued uClick 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 uChange: 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&data set=hep&percentage=any 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&data set=hep&percentage=any uCan download for Excel & further analysis uPinger Group History table www-iepm.slac.stanford.edu/cgi-wrap/table.pl

7 Slide: 7 Les Cottrell, SLAC Exec style plots uwww.slac.stanford.edu/comp/net/wan- mon/pingerplots/trendline/trendline.jnlpwww.slac.stanford.edu/comp/net/wan- mon/pingerplots/trendline/trendline.jnlp uRight click on graph area, click on add/remove Trendlines/points uAlso note: write parameters to csv file Toggle log/linear

8 Slide: 8 Les Cottrell, SLAC Viz for PingER (ViPER) uwww.slac.stanford.edu/comp/net/wan-mon/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 Slide: 9 Les Cottrell, SLAC PingWorld uwww-iepm.slac.stanford.edu/tools/pingworld/www-iepm.slac.stanford.edu/tools/pingworld/ uCan ping from your host to sites around the world uNeeds Java Webstart

10 Slide: 10 Les Cottrell, SLAC Locating Hosts AS gives information on ‘ISPs’ running networks uPerl script to get ASN information: confluence.slac.stanford.edu/display/IEPM/ASN.pl uTricky 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 http://www.geoiptool.com/ So does www.ip2location.com/free.asp (69.33.174.209)www.ip2location.com/free.asp RTT from SLAC is ~200ms! www.slac.stanford.edu/cgi- bin/traceroute.pl?target=ui.edu.ng&function=ping 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 http://bgp.potaroo.net/cidr/autnums.html shows AS23215 From New York 20ms

11 Slide: 11 Les Cottrell, SLAC TULIP/Octant uOctant http://www.cs.cornell.edu/~bwong/octant/http://www.cs.cornell.edu/~bwong/octant/ Geolocation based on RTTs, excellent for US uwww.slac.stanford.edu/comp/net/wan-mon/tulipwww.slac.stanford.edu/comp/net/wan-mon/tulip Attempts to work for Developing Regions Needs Java Webstart Try for www.slac.stanford.eduwww.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 Slide: 12 Les Cottrell, SLAC Web page examples: Case studies uhttp://www.slac.stanford.edu/grp/scs/net/case/html/http://www.slac.stanford.edu/grp/scs/net/case/html/ uhttp://e2epi.internet2.edu/case-studies/http://e2epi.internet2.edu/case-studies/

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

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