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/collection/1-05L8-9

Collection: WIDE-TRANSIT 150 Megabit Ethernet Trace 2008-03-18 (Anonymized)

150 Megabit Ethernet anonymized packet traces without payload: WIDE-TRANSIT link @ Tokyo, Japan

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Collection Details

SummaryAnonymized packet header traces collected from a 150 Megabit Ethernet link which connects WIDE and its upstream from Mar 18 to Mar 20, 2008. Most of the traffic is trans-Pacific, and some flows are observed only in one direction due to asymmetric routing.
MotivationTo join the simultaneous Internet data collection event, A Day in the Life of the Internet project in 2008. To provide all of 150 Megabit Ethernet traces taken on a link which connects WIDE and its upstream from 2008-03-18 to 2008-03-20 (about 72 hours).
Start Time2008-03-17 14:45:00.738 UTC (+0000)
End Time2008-03-20 15:00:00.640 UTC (+0000)
Duration3 days 00:14:59.902 (260099.902 s)
Data formatspcap
Geographic locationOtemachi, Tokyo, Japan
Network locationWIDE (AS2500) backbone
Logistic locationWIDE Notemachi NOC
PlatformFreeBSD 6-STABLE, on a Xeon 3.0GHz x4 1GB RAM and 300GB x2 HDD
CreatorsKenjiro Cho
Keywordsanonymized, DITL, DITL-2008-03-18, Ethernet, Japan, passive, trace, WIDE
Description
These traces consist of anonymized packet headers collected in both directions on a 150 Megabit Ethernet external link which connects WIDE backbone and its upstream. The actual link capacity is 1Gbps with the capped bandwidth of 150Mbps.

The first 96 bytes were captured per each packet, and then, IP addresses are anonymized and payloads are removed by tcpdpriv. The anonymized IP addresses are prefix-preserved and consistent among the files in the data set. The trace is divided into 15-minute-long traces while capturing without closing the bpf by a pcap-based tool. The IP addresses in the traces are anonymized with a prefix-preserving method, and prefix-mapping is consistent among the traces. Our Ethernet traces are available in 15 minutes duration files in the pcap format containing both directions. Each file is named by the start time (ccyymmdd_HHMMSS) in local time (JST). NTP was used for clock synchronization.

The original unanonymized data with short payload is available upon request, see WIDE-TRANSIT 150 Megabit Ethernet Trace 2008-03-18 for access restrictions and more information.
For more informationhttp://mawi.wide.ad.jp/mawi/samplepoint-F/20080318/
Creation process
A pcap-based tool that is equivalant to tcpdump except that it can rotate output files. The output format is equivalant to 'tcpdump -w'. The first 96 bytes were captured per each packet, and then, IP addresses are anonymized and payloads are removed by tcpdpriv. The anonymized IP addresses are prefix-preserved and consistent among the files in the data set.
Member of
Contents
289 data files (258 GiB)

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Record Details

Handleimdc.datcat.org/collection/1-05L8-9=WIDE-TRANSIT-150-Megabit-Ethernet-Trace-2008-03-18-Anonymized-
ContributorKenjiro Cho
Contributed2008-04-14 02:17:05.635 UTC (+0000)
Last Modified2008-04-14 02:18:27.926 UTC (+0000)