Navigating pinger
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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.

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Navigating PingER

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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

Partially funded by DOE/MICS Field Work Proposal on Internet End-to-end Performance Monitoring (IEPM), also supported by IUPAP


Get ready

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


Navigating pinger

Aim

  • Traceroute

  • PingER

  • ViPER

  • PingWorld

  • Locating Hosts

  • TULIP


Traceroute examples

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


Help yourself to pinger data

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


Pinger continued

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


Exec style plots

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


Viz for pinger viper

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


Pingworld

PingWorld

  • www-iepm.slac.stanford.edu/tools/pingworld/

  • Can ping from your host to sites around the world

  • Needs Java Webstart


Locating hosts

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


Tulip octant

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)


Web page examples case studies

Web page examples: Case studies

  • http://www.slac.stanford.edu/grp/scs/net/case/html/

  • http://e2epi.internet2.edu/case-studies/


More information

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


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