hurricane sandy, as seen by ripe atlas - nanog 57
DESCRIPTION
NANOG 57TRANSCRIPT
Hurricane Sandy, as seen by RIPE [email protected] 57
Emile Aben, NANOG 57
RIPE Atlas• Measuring the Internet
– For the community– By the community
• https://atlas.ripe.net/
• https://labs.ripe.net/atlas
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Emile Aben, NANOG 57
2500+ Hardware Probes Deployed
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104 countries1202 v4 ASes (2.8%)402 v6 ASes (6.1%)
Emile Aben, NANOG 57
Measurements• Ping(4/6)• Traceroute(4/6)• (DNS/HTTP/SSL)
• Towards “fixed” destinations:– DNS root servers + RIPE Atlas infrastructure
• User Defined Measurements
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Emile Aben, NANOG 57
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
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RIPE Atlas Probes in Affected Area
Emile Aben, NANOG 57
Vantage Points in Affected Area
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Sandy Landfall
100%
Path Flux
Emile Aben, NANOG 57
Path Flux towards North American Targets
9
0
100
200
300
400+
28/1000:00
29/1000:00
30/1000:00
31/1000:00
01/1100:00
02/1100:00
03/1100:00
04/1100:00
05/1100:00
06/1100:00
Path
s w
ith IP
s no
t see
n in
the
prev
8 h
rs
Time (UTC)
IPv4 Path Flux
AS7296/CA,USAS13/MD,USAS27/MD,US
AS3356/CO,USAS6453/QC,CA
Emile Aben, NANOG 57
Path Flux towards EU Targets
10
0
100
200
300
400+
28/1000:00
29/1000:00
30/1000:00
31/1000:00
01/1100:00
02/1100:00
03/1100:00
04/1100:00
05/1100:00
06/1100:00
Path
s w
ith IP
s no
t see
n in
the
prev
8 h
rs
Time (UTC)
IPv4 Path Flux
AS24940/DEAS3333/NL
Emile Aben, NANOG 57
AS Path Flux (IPv4 paths)
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0
20
40
60
80
100+
28/1000:00
29/1000:00
30/1000:00
31/1000:00
01/1100:00
02/1100:00
03/1100:00
04/1100:00
05/1100:00
06/1100:00
Path
s w
ith A
Ses
not s
een
in p
rev
2 hr
s
Time (UTC)
AS Path Flux
AS3333/NLAS24940/DEAS27/MD,USAS13/MD,US
AS7296/CA,US
Emile Aben, NANOG 57
Path Flux (IPv6)
12
0
20
40
60
80
100+
28/1000:00
29/1000:00
30/1000:00
31/1000:00
01/1100:00
02/1100:00
03/1100:00
04/1100:00
05/1100:00
06/1100:00
Path
s w
ith IP
s no
t see
n in
the
prev
8 h
rs
Time (UTC)
IPv6 Path Flux
AS3333/NLAS24940/DEAS27/MD,USAS13/MD,US
AS7296/CA,US
New York-New York
Emile Aben, NANOG 57
Paths through NYC/ASH to ns.ripe.net
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Emile Aben, NANOG 57
Compare pre/post Sandy Paths
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dst: ns.ripe.net / AS3333 / NLpre: 22:00 UTC vs. post: 09:00 UTC
DestinationPath moved away from NYCPath kept going through NYCPath started going through NYC
Path not through NYC
Emile Aben, NANOG 57
Compare pre/post Sandy paths
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dst: d-root / AS27 / MD,USpre: 22:00 UTC vs. post: 09:00 UTC
Emile Aben, NANOG 57
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?
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Questions?
https://labs.ripe.net/sandy-2012