Navigating Ping ER Les Cottrell SLAC Presented at

Navigating Ping. ER 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/talk 06/diag-demos. ppt Partially funded by DOE/MICS Field Work Proposal on Internet End-to-end Performance Monitoring (IEPM), also supported by IUPAP http: //sdu. ictp. it/lowbandwidth/

Get ready u. Bring up terminal window so can try some commands u. Bring up the presentation so can click on links: n www. slac. stanford. edu/grp/scs/net/talk 06/diag-demos. ppt Les Cottrell, SLAC Slide: 2

Aim u. Traceroute u. Ping. ER u. Vi. PER u. Ping. World u. Locating Hosts u. TULIP Les Cottrell, SLAC Slide: 3

Traceroute examples u. Try: n traceroute ba 59 -97 -hsrp-144. nrl. navy. mil #or tracepath n traceroute –I ba 59 -97 -hsrp-144. nrl. navy. mil n traceroute pheezer. uits. iupui. edu n traceroute –I pheezer. uits. iupui. edu u. Do a man traceroute to understand the ! Codes, also see RFC 1812 Les Cottrell, SLAC Slide: 4

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

Ping. ER continued u. Click on name of node, eg. TW. SINICA. EDU. N 1 n Change first month to Aug (can also choose metric etc. ) n Scroll down click on Generate Graphs u. Change: From=IT. ICTP. N 1, To=World, Tick=daily n www-iepm. slac. stanford. edu/cgiwrap/pingtable. pl? file=packet_loss&by=bysite&size=100&tick=daily&from=IT. ICTP. N 1&to=WORLD&ex=none&data set=hep&percentage=any u. Can download for Excel & further analysis u. Pinger Group History table n www-iepm. slac. stanford. edu/cgi-wrap/table. pl Les Cottrell, SLAC Slide: 6

Exec style plots uwww. slac. stanford. edu/comp/net/wanmon/pingerplots/trendline. jnlp u. Right click on graph area, click on add/remove Trendlines/points u. Also note: n write parameters to csv file n Toggle log/linear Les Cottrell, SLAC Slide: 7

Viz for Ping. ER (Vi. PER) uwww. slac. stanford. edu/comp/net/wan-mon/viper/ n Select From & To, metric and Show links l. Colored by performance, shows regions, mouseover l. Can select multiple To’s l. Can show plots Les Cottrell, SLAC Slide: 8

Ping. World uwww-iepm. slac. stanford. edu/tools/pingworld/ u. Can ping from your host to sites around the world u. Needs Java Webstart Les Cottrell, SLAC Slide: 9

Locating Hosts AS gives information on ‘ISPs’ running networks u Perl script to get ASN information: n confluence. slac. stanford. edu/display/IEPM/ASN. pl u Tricky example: find ui. edu. ng n Nslookup/dig gives IP addr = 69. 33. 174. 209 l AKA fallback. skannet. com n http: //www. geoiptool. com/ says it is N. California n So does www. ip 2 location. com/free. asp (69. 33. 174. 209) n RTT from SLAC is ~200 ms! l www. slac. stanford. edu/cgibin/traceroute. pl? target=ui. edu. ng&function=ping n http: //www. fixedorbit. com/search. htm shows AS 23215 l http: //bgp. potaroo. net/cidr/autnums. html shows AS 23215 in Pleasanton California n From New York 20 ms Les Cottrell, SLAC Slide: 10

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

Web page examples: Case studies uhttp: //www. slac. stanford. edu/grp/scs/net/case/html/ uhttp: //e 2 epi. internet 2. edu/case-studies/ Les Cottrell, SLAC Slide: 12

More Information u. Tutorial on monitoring n www. slac. stanford. edu/comp/net/wan-mon/tutorial. html u. RFC 2151 on Internet tools n www. freesoft. org/CIE/RFC/Orig/rfc 2151. txt u. Network monitoring tools n www. slac. stanford. edu/xorg/nmtf-tools. html n www. caida. org/tools/taxonomy/ u. Network Performance Tools: an I 2 Cookbook n e 2 epi. internet 2. edu/network-perf-wk/tools-cookbook. pdf u. Network Monitoring sites n www. slac. stanford. edu/comp/net/wan-mon/netmon. html Les Cottrell, SLAC Slide: 13