Navigating PingER

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/pi
  nger-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-demo
  s.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 fromZA.TENET.AC.ZA
  toWORLD, metricminimum-RTT, tick-typelast 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 FromIT.ICTP.N1, ToWorld, Tickdaily
• www-iepm.slac.stanford.edu/cgi-wrap/pingtable.pl?f
  ilepacket_lossbyby-sitesize100tickdailyfro
  mIT.ICTP.N1toWORLDexnonedatasetheppercenta
  geany
• 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 Tos
• 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.ngfunctionping
• 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
• FilegtSort Min_RTT
• VisualizationgtPlot IP on Map
• DiscoveryStatisticsgtMinRTT 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.ht
  ml
• 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