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Hurricane Sandy, as
seen by RIPE Atlas
emile.aben@ripe.net
NANOG 57
RIPE Atlas
•   Measuring the Internet
    – For     the community
    – By     the community


•   https://atlas.ripe.net/


•   https://labs.ripe.net/atlas



Emile Aben, NANOG 57              2
2500+ Hardware Probes Deployed




                       104 countries
                       1202 v4 ASes (2.8%)
                       402 v6 ASes (6.1%)
Emile Aben, NANOG 57                         3
Measurements
•   Ping(4/6)
•   Traceroute(4/6)
•   (DNS/HTTP/SSL)


•   Towards “fixed” destinations:
    – DNS        root servers + RIPE Atlas infrastructure


•   User Defined Measurements

Emile Aben, NANOG 57                                        4
What Do We Want From You?
•   Use RIPE Atlas!
•   Feedback on how to make it (even) better




•   Today’s presentation: How RIPE Atlas saw
    Hurricane Sandy
    – https://labs.ripe.net/sandy-2012



Emile Aben, NANOG 57                           5
RIPE Atlas Probes in
Affected Area
Vantage Points in Affected Area
                       Sandy Landfall




                                        100%




Emile Aben, NANOG 57                      7
Path Flux
Path Flux towards North American Targets
                                                                              IPv4 Path Flux
                                            400+
                                                                                                                          AS7296/CA,US
                                                                                                                            AS13/MD,US
                                                                                                                            AS27/MD,US
                                                                                                                          AS3356/CO,US
                                                                                                                          AS6453/QC,CA
Paths with IPs not seen in the prev 8 hrs




                                             300




                                             200




                                             100




                                              0
                                              28/10   29/10   30/10   31/10   01/11    02/11   03/11   04/11   05/11   06/11
                                              00:00   00:00   00:00   00:00   00:00    00:00   00:00   00:00   00:00   00:00
                                                                                Time (UTC)


                       Emile Aben, NANOG 57                                                                                              9
Path Flux towards EU Targets
                                                                              IPv4 Path Flux
                                            400+
                                                                                                                           AS24940/DE
                                                                                                                            AS3333/NL
Paths with IPs not seen in the prev 8 hrs




                                             300




                                             200




                                             100




                                              0
                                              28/10   29/10   30/10   31/10   01/11    02/11   03/11   04/11   05/11   06/11
                                              00:00   00:00   00:00   00:00   00:00    00:00   00:00   00:00   00:00   00:00
                                                                                Time (UTC)


                                    Emile Aben, NANOG 57                                                                                10
AS Path Flux (IPv4 paths)
                                                                            AS Path Flux
                                         100+
                                                                                                                           AS3333/NL
                                                                                                                          AS24940/DE
                                                                                                                         AS27/MD,US
                                                                                                                         AS13/MD,US
                                                                                                                        AS7296/CA,US
                                           80
Paths with ASes not seen in prev 2 hrs




                                           60




                                           40




                                           20




                                           0
                                           28/10   29/10   30/10   31/10   01/11    02/11   03/11   04/11   05/11   06/11
                                           00:00   00:00   00:00   00:00   00:00    00:00   00:00   00:00   00:00   00:00
                                                                             Time (UTC)



                       Emile Aben, NANOG 57                                                                                            11
Path Flux (IPv6)
                                                                              IPv6 Path Flux
                                            100+
                                                                                                                              AS3333/NL
                                                                                                                             AS24940/DE
                                                                                                                            AS27/MD,US
                                                                                                                            AS13/MD,US
                                              80                                                                           AS7296/CA,US
Paths with IPs not seen in the prev 8 hrs




                                              60




                                              40




                                              20




                                              0
                                              28/10   29/10   30/10   31/10   01/11    02/11   03/11   04/11   05/11   06/11
                                              00:00   00:00   00:00   00:00   00:00    00:00   00:00   00:00   00:00   00:00
                                                                                Time (UTC)



Emile Aben, NANOG 57                                                                                                                      12
New York-New York
Paths through NYC/ASH to ns.ripe.net




Emile Aben, NANOG 57                   14
Compare pre/post Sandy Paths
               dst: ns.ripe.net / AS3333 / NL
            pre: 22:00 UTC vs. post: 09:00 UTC
                                         Destination
                                         Path moved away from NYC
                                         Path kept going through NYC
                                         Path started going through NYC
                                         Path not through NYC




Emile Aben, NANOG 57                                                   15
Compare pre/post Sandy paths
                 dst: d-root / AS27 / MD,US
            pre: 22:00 UTC vs. post: 09:00 UTC




Emile Aben, NANOG 57                             16
Conclusion
•   For the paths that we measured:
    – Paths       were noticeably more unstable on 2012-10-30
      (UTC)
    – Paths       moved away from NYC, but not completely


•   There will be a next time (the Mayas were wrong)
    – Next      time: ???
•   How can RIPE Atlas serve you best?


Emile Aben, NANOG 57                                            17
Questions?



https://labs.ripe.net/sandy-2012

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Hurricane Sandy, as seen by RIPE Atlas - NANOG 57

  • 1. Hurricane Sandy, as seen by RIPE Atlas emile.aben@ripe.net NANOG 57
  • 2. RIPE Atlas • Measuring the Internet – For the community – By the community • https://atlas.ripe.net/ • https://labs.ripe.net/atlas Emile Aben, NANOG 57 2
  • 3. 2500+ Hardware Probes Deployed 104 countries 1202 v4 ASes (2.8%) 402 v6 ASes (6.1%) Emile Aben, NANOG 57 3
  • 4. Measurements • Ping(4/6) • Traceroute(4/6) • (DNS/HTTP/SSL) • Towards “fixed” destinations: – DNS root servers + RIPE Atlas infrastructure • User Defined Measurements Emile Aben, NANOG 57 4
  • 5. What Do We Want From You? • Use RIPE Atlas! • Feedback on how to make it (even) better • Today’s presentation: How RIPE Atlas saw Hurricane Sandy – https://labs.ripe.net/sandy-2012 Emile Aben, NANOG 57 5
  • 6. RIPE Atlas Probes in Affected Area
  • 7. Vantage Points in Affected Area Sandy Landfall 100% Emile Aben, NANOG 57 7
  • 9. Path Flux towards North American Targets IPv4 Path Flux 400+ AS7296/CA,US AS13/MD,US AS27/MD,US AS3356/CO,US AS6453/QC,CA Paths with IPs not seen in the prev 8 hrs 300 200 100 0 28/10 29/10 30/10 31/10 01/11 02/11 03/11 04/11 05/11 06/11 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 Time (UTC) Emile Aben, NANOG 57 9
  • 10. Path Flux towards EU Targets IPv4 Path Flux 400+ AS24940/DE AS3333/NL Paths with IPs not seen in the prev 8 hrs 300 200 100 0 28/10 29/10 30/10 31/10 01/11 02/11 03/11 04/11 05/11 06/11 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 Time (UTC) Emile Aben, NANOG 57 10
  • 11. AS Path Flux (IPv4 paths) AS Path Flux 100+ AS3333/NL AS24940/DE AS27/MD,US AS13/MD,US AS7296/CA,US 80 Paths with ASes not seen in prev 2 hrs 60 40 20 0 28/10 29/10 30/10 31/10 01/11 02/11 03/11 04/11 05/11 06/11 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 Time (UTC) Emile Aben, NANOG 57 11
  • 12. Path Flux (IPv6) IPv6 Path Flux 100+ AS3333/NL AS24940/DE AS27/MD,US AS13/MD,US 80 AS7296/CA,US Paths with IPs not seen in the prev 8 hrs 60 40 20 0 28/10 29/10 30/10 31/10 01/11 02/11 03/11 04/11 05/11 06/11 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 00:00 Time (UTC) Emile Aben, NANOG 57 12
  • 14. Paths through NYC/ASH to ns.ripe.net Emile Aben, NANOG 57 14
  • 15. Compare pre/post Sandy Paths dst: ns.ripe.net / AS3333 / NL pre: 22:00 UTC vs. post: 09:00 UTC Destination Path moved away from NYC Path kept going through NYC Path started going through NYC Path not through NYC Emile Aben, NANOG 57 15
  • 16. Compare pre/post Sandy paths dst: d-root / AS27 / MD,US pre: 22:00 UTC vs. post: 09:00 UTC Emile Aben, NANOG 57 16
  • 17. Conclusion • For the paths that we measured: – Paths were noticeably more unstable on 2012-10-30 (UTC) – Paths moved away from NYC, but not completely • There will be a next time (the Mayas were wrong) – Next time: ??? • How can RIPE Atlas serve you best? Emile Aben, NANOG 57 17