1. Navigating PingER Les Cottrell – SLAC
Presented at the Optimization Technologies for Low-Bandwidth Networks, ICTP Workshop, Trieste, Italy, 9-20 October 2006
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:

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
ba59-97-hsrp-144.nrl.navy.mil
traceroute to ba59-97-hsrp-144.nrl.navy.mil ( ), 30 hops max, 38 byt
e packets
1 rtr-test-test ( ) ms ms ms
2 rtr-core1-p2p-test ( ) ms ms ms
3 rtr-dmz1-ger ( ) ms ms ms
4 slac-rt4.es.net ( ) ms ms ms
5 slacmr1-slacrt4.es.net ( ) ms ms ms
6 snv2mr1-slacmr1.es.net ( ) ms ms ms
7 snv2sdn1-snv2mr1.es.net ( ) ms ms ms
8 seattlesdn1-snv2sdn1.es.net ( ) ms ms ms
9 dren-pwave.peer-1.pnw-gigapop.net ( ) ms ms 65.
741 ms
10 so nrldc.dren.net ( ) ms ms ms
11 * * cperouter.nrldc.dren.net ( ) ms !X
12 * * *
13 cperouter.nrldc.dren.net ( ) ms !X * *
14 * * cperouter.nrldc.dren.net ( ) ms !X
15 * * *

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
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 =
AKA fallback.skannet.com
says it is N. California
So does ( )
RTT from SLAC is ~200ms!
shows AS23215
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
Attempts to work for Developing Regions
Needs Java Webstart
Try for
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

13. More Information Tutorial on monitoring RFC 2151 on Internet tools
RFC 2151 on Internet tools
Network monitoring tools
Network Performance Tools: an I2 Cookbook
e2epi.internet2.edu/network-perf-wk/tools-cookbook.pdf
Network Monitoring sites