Data Collection Overview

Total number of datafiles	230,404
Total sum of uncompressed data available	91.43 TiB
Number of activated monitors	28
Total number of IPv4 headers	901,242,776,513
Total number of IPv6 headers	56,436,740
Average daily increase of uncompressed data (last 365 days)	64.59 GiB
Number of files collected each day (average over 365 days)	73

Data Request Overview

Total submissions:	1679
Earliest submission:	February 4, 2003 13:25:51
Most recent submission:	May 13, 2008 01:36:19
Students Using Data:	1990 (average 1.18)
Dataset Chosen	Anonymized Internet Traces 387 Macroscopic Topology Datasets 374 Backscatter Datasets 280 AS Relationships Dataset 234 Skitter AS Links Dataset 203 Witty Worm Dataset 77 Code-Red Worms Dataset 58 Witty Worm Public Dataset 35 DNS root/gTLD RTT Dataset 22 IPv4 Routed /24 AS Links Dataset 8

Statistics on All Data Requests

Statistics on Requests for Freely Available Data

Statistics on Requests for Restricted Access Data

Data Collection by Type

Passive Data Collection

Earliest data	August 14, 2002
Latest data (collection is ongoing)	March 19, 2008
Total number of datafiles	829
Total sum of uncompressed data available	1.937 TiB

Security Data Collection

Earliest data	February 1, 2001
Latest data (collection is ongoing)	May 8, 2008
Total number of datafiles	73,964
Total sum of uncompressed data available	82.51 TiB

Macroscopic Topology Data Collection

	All	From Skitter infrastructure	From Archipelago infrastructure
Earliest data	January 18, 1998	January 18, 1998	September 13, 2007
Latest data (collection is ongoing)	May 10, 2008	February 8, 2008	May 10, 2008
Total number of datafiles	74,872	70,694	4,178
Total sum of uncompressed data available	4.314 TiB	4.012 TiB	309.8 GiB

Sponsors

• National Science Foundation
• Department of Homeland Security
• Cisco Systems
• WIDE Project
• Limelight Networks
• Defense Advanced Research Projects Agency
• Digital Envoy
• Endace
• University of Auckland
• WAND - University of Waikato