WITS: Auckland VII

Trace Format ATM cell header capture.
Volume on Disk 18 GB
Number of Traces 126
Capture Start (Local) Tue Jul 24 10:00:00 2001
Capture End (Local) Wed Jul 25 01:45:00 2001
Total Duration 0 Days, 15 Hours, 29 Minutes and 46 Seconds
Packets Captured 6,040 million
Total Traffic 297 GB
Contiguity Mostly contiguous, but there are a number of gaps.
Snapping Method All records are 12 bytes long, containing 4 bytes of the ATM cell header.
Rotation Policy Files were rotated every 15 minutes.
Anonymization No anonymization is required for ATM cell header captures.
Download Link
Download Link (RIPE repository)

This is a mostly continuous 15 and a half hour GPS-synchronized ATM cell header trace captured using a DAG 3 card at the University of Auckland. As this is an ATM cell header capture, there are no IP headers and, in fact, very little information at all aside from a timestamp and most (but not all) of the ATM cell header.

Important: Converting these traces to PCAP will result in the ATM cell header being discarded for each packet, as there is no matching PCAP DLT for that link header. Please try to process these traces using their native format wherever possible - most tools that require PCAP input would struggle with an ATM cell capture anyway.

The tap was installed at an OC3c link carrying various Classical-IP-over-ATM, LANE and POTS services. All cells were captured and immediately processed to extract only the timestamp and header data. All other information was discarded. Details regarding the types of traffic represented by each VPI/VCI were saved, but our copies of the traces do not appear to have come with that information.

A few of the traces in the set appear to have been prematurely aborted. We do not know whether these breaks were caused by a hardware fault or a network failure as there does not appear to be any documentation that explains them. Additionally, we cannot produce any graphs or counts of the traffic represented by the traces due to the lack of any such detail in the records.

Each trace file is named using the following format: yyyymmdd-HHMMSS-[direction].hdr.gz. The time and date refers to the local time when the capture was started. The direction refers to which half of the link is contained within the trace. Traditionally, Auckland traces have set direction 0 as traffic coming into the University and direction 1 as traffic originating from the University. However, without IP headers in the trace we have not been able to confirm that this still holds for this traceset.

The recommended method for processing these traces is to use Libtrace, which we have developed. There are a number of tools included with libtrace such as a packet dumping utility, a trace format converter (for example, to convert to pcap), a trace splitting/filtering tool and a few statistic generators. We suggest you examine the Libtrace Wiki for more details on the Libtrace tools and the library itself.

Acknowledgements: Some of the information presented on this page has been sourced from the now defunct NLANR page about this traceset.

Name Local Start Time Duration Total Packets Compressed Size
20010724-100000-0.hdr Tue Jul 24 10:00:00 2001 0:15:00 50 million 162 MB
20010724-100000-1.hdr Tue Jul 24 10:00:00 2001 0:15:00 51 million 168 MB
20010724-101500-0.hdr Tue Jul 24 10:15:00 2001 0:15:00 50 million 162 MB
20010724-101500-1.hdr Tue Jul 24 10:15:00 2001 0:15:00 51 million 169 MB
20010724-103000-0.hdr Tue Jul 24 10:30:00 2001 0:15:00 51 million 164 MB
20010724-103000-1.hdr Tue Jul 24 10:30:00 2001 0:15:00 51 million 167 MB
20010724-104500-0.hdr Tue Jul 24 10:45:00 2001 0:10:43 35 million 113 MB
20010724-104500-1.hdr Tue Jul 24 10:45:00 2001 0:14:17 50 million 163 MB
20010724-110000-0.hdr Tue Jul 24 11:00:00 2001 0:15:00 48 million 154 MB
20010724-110000-1.hdr Tue Jul 24 11:00:00 2001 0:15:00 53 million 176 MB
20010724-111500-0.hdr Tue Jul 24 11:15:00 2001 0:15:00 47 million 152 MB
20010724-111500-1.hdr Tue Jul 24 11:15:00 2001 0:15:00 54 million 177 MB
20010724-113000-0.hdr Tue Jul 24 11:30:00 2001 0:15:00 45 million 146 MB
20010724-113000-1.hdr Tue Jul 24 11:30:00 2001 0:15:00 56 million 186 MB
20010724-114503-0.hdr Tue Jul 24 11:45:03 2001 0:14:56 48 million 155 MB
20010724-114503-1.hdr Tue Jul 24 11:44:59 2001 0:15:00 53 million 176 MB
20010724-120000-0.hdr Tue Jul 24 12:00:00 2001 0:14:57 45 million 147 MB
20010724-120000-1.hdr Tue Jul 24 12:00:00 2001 0:14:57 56 million 185 MB
20010724-121500-0.hdr Tue Jul 24 12:15:00 2001 0:00:32 1 million 5 MB
20010724-121500-1.hdr Tue Jul 24 12:14:56 2001 0:15:03 56 million 185 MB
20010724-123000-0.hdr Tue Jul 24 12:30:00 2001 0:15:00 49 million 159 MB
20010724-123000-1.hdr Tue Jul 24 12:30:00 2001 0:15:00 52 million 172 MB
20010724-124503-0.hdr Tue Jul 24 12:45:03 2001 0:14:57 51 million 164 MB
20010724-124503-1.hdr Tue Jul 24 12:44:59 2001 0:15:00 51 million 167 MB
20010724-130000-0.hdr Tue Jul 24 13:00:00 2001 0:15:00 52 million 167 MB
20010724-130000-1.hdr Tue Jul 24 13:00:00 2001 0:15:00 50 million 165 MB
20010724-131500-0.hdr Tue Jul 24 13:15:00 2001 0:15:00 50 million 161 MB
20010724-131500-1.hdr Tue Jul 24 13:15:00 2001 0:15:00 52 million 171 MB
20010724-133000-0.hdr Tue Jul 24 13:30:00 2001 0:15:00 49 million 157 MB
20010724-133000-1.hdr Tue Jul 24 13:30:00 2001 0:15:00 53 million 173 MB
20010724-134500-0.hdr Tue Jul 24 13:45:00 2001 0:15:00 51 million 165 MB
20010724-134500-1.hdr Tue Jul 24 13:45:00 2001 0:15:00 50 million 166 MB
20010724-140000-0.hdr Tue Jul 24 14:00:00 2001 0:14:59 50 million 161 MB
20010724-140000-1.hdr Tue Jul 24 14:00:00 2001 0:14:59 52 million 171 MB
20010724-141502-0.hdr Tue Jul 24 14:15:02 2001 0:14:57 49 million 158 MB
20010724-141502-1.hdr Tue Jul 24 14:14:59 2001 0:15:01 52 million 172 MB
20010724-143000-0.hdr Tue Jul 24 14:30:00 2001 0:15:00 49 million 159 MB
20010724-143000-1.hdr Tue Jul 24 14:30:00 2001 0:15:00 52 million 172 MB
20010724-144500-0.hdr Tue Jul 24 14:45:00 2001 0:14:58 49 million 159 MB
20010724-144500-1.hdr Tue Jul 24 14:45:00 2001 0:14:58 52 million 173 MB
20010724-150001-0.hdr Tue Jul 24 15:00:01 2001 0:14:58 50 million 162 MB
20010724-150001-1.hdr Tue Jul 24 14:59:58 2001 0:15:02 52 million 169 MB
20010724-151500-0.hdr Tue Jul 24 15:15:00 2001 0:15:00 51 million 163 MB
20010724-151500-1.hdr Tue Jul 24 15:15:00 2001 0:15:00 51 million 167 MB
20010724-153000-0.hdr Tue Jul 24 15:30:00 2001 0:15:00 50 million 163 MB
20010724-153000-1.hdr Tue Jul 24 15:30:00 2001 0:15:00 51 million 169 MB
20010724-154500-0.hdr Tue Jul 24 15:45:00 2001 0:15:00 51 million 163 MB
20010724-154500-1.hdr Tue Jul 24 15:45:00 2001 0:15:00 51 million 168 MB
20010724-160000-0.hdr Tue Jul 24 15:59:59 2001 0:15:00 51 million 165 MB
20010724-160000-1.hdr Tue Jul 24 16:00:00 2001 0:15:00 51 million 167 MB
20010724-161500-0.hdr Tue Jul 24 16:15:00 2001 0:14:59 51 million 165 MB
20010724-161500-1.hdr Tue Jul 24 16:15:00 2001 0:14:59 51 million 167 MB
20010724-163002-0.hdr Tue Jul 24 16:30:02 2001 0:14:58 51 million 164 MB
20010724-163002-1.hdr Tue Jul 24 16:29:58 2001 0:15:01 51 million 168 MB
20010724-164500-0.hdr Tue Jul 24 16:45:00 2001 0:15:00 51 million 165 MB
20010724-164500-1.hdr Tue Jul 24 16:45:00 2001 0:15:00 51 million 165 MB
20010724-170000-0.hdr Tue Jul 24 17:00:00 2001 0:15:00 51 million 167 MB
20010724-170000-1.hdr Tue Jul 24 17:00:00 2001 0:15:00 50 million 164 MB
20010724-171500-0.hdr Tue Jul 24 17:14:59 2001 0:15:00 51 million 165 MB
20010724-171500-1.hdr Tue Jul 24 17:15:00 2001 0:15:00 51 million 167 MB
20010724-173000-0.hdr Tue Jul 24 17:30:00 2001 0:05:07 17 million 57 MB
20010724-173000-1.hdr Tue Jul 24 17:30:00 2001 0:15:00 47 million 154 MB
20010724-174500-0.hdr Tue Jul 24 17:45:00 2001 0:15:00 50 million 164 MB
20010724-174500-1.hdr Tue Jul 24 17:45:00 2001 0:15:00 46 million 148 MB
20010724-180000-0.hdr Tue Jul 24 18:00:00 2001 0:15:00 51 million 163 MB
20010724-180000-1.hdr Tue Jul 24 18:00:00 2001 0:15:00 45 million 146 MB
20010724-181500-0.hdr Tue Jul 24 18:15:00 2001 0:15:00 50 million 161 MB
20010724-181500-1.hdr Tue Jul 24 18:15:00 2001 0:15:00 46 million 150 MB
20010724-183000-0.hdr Tue Jul 24 18:30:00 2001 0:15:00 48 million 157 MB
20010724-183000-1.hdr Tue Jul 24 18:30:00 2001 0:15:00 45 million 147 MB
20010724-184500-0.hdr Tue Jul 24 18:45:00 2001 0:15:00 48 million 155 MB
20010724-184500-1.hdr Tue Jul 24 18:45:00 2001 0:15:00 45 million 146 MB
20010724-190000-0.hdr Tue Jul 24 19:00:00 2001 0:15:00 47 million 152 MB
20010724-190000-1.hdr Tue Jul 24 19:00:00 2001 0:15:00 45 million 145 MB
20010724-191500-0.hdr Tue Jul 24 19:15:00 2001 0:15:00 48 million 155 MB
20010724-191500-1.hdr Tue Jul 24 19:15:00 2001 0:15:00 45 million 146 MB
20010724-193000-0.hdr Tue Jul 24 19:30:00 2001 0:15:00 46 million 150 MB
20010724-193000-1.hdr Tue Jul 24 19:30:00 2001 0:15:00 45 million 144 MB
20010724-194500-0.hdr Tue Jul 24 19:45:00 2001 0:15:00 46 million 149 MB
20010724-194500-1.hdr Tue Jul 24 19:45:00 2001 0:15:00 45 million 146 MB
20010724-200000-0.hdr Tue Jul 24 20:00:00 2001 0:15:00 46 million 151 MB
20010724-200000-1.hdr Tue Jul 24 20:00:00 2001 0:15:00 45 million 145 MB
20010724-201500-0.hdr Tue Jul 24 20:15:00 2001 0:15:00 47 million 153 MB
20010724-201500-1.hdr Tue Jul 24 20:15:00 2001 0:15:00 45 million 144 MB
20010724-203000-0.hdr Tue Jul 24 20:30:00 2001 0:15:00 45 million 147 MB
20010724-203000-1.hdr Tue Jul 24 20:30:00 2001 0:15:00 45 million 145 MB
20010724-204500-0.hdr Tue Jul 24 20:45:00 2001 0:15:00 45 million 148 MB
20010724-204500-1.hdr Tue Jul 24 20:45:00 2001 0:15:00 46 million 147 MB
20010724-210000-0.hdr Tue Jul 24 21:00:00 2001 0:15:00 45 million 147 MB
20010724-210000-1.hdr Tue Jul 24 21:00:00 2001 0:15:00 46 million 147 MB
20010724-211500-0.hdr Tue Jul 24 21:15:00 2001 0:15:00 44 million 144 MB
20010724-211500-1.hdr Tue Jul 24 21:15:00 2001 0:15:00 47 million 151 MB
20010724-213000-0.hdr Tue Jul 24 21:30:00 2001 0:15:00 51 million 168 MB
20010724-213000-1.hdr Tue Jul 24 21:30:00 2001 0:15:00 50 million 162 MB
20010724-214500-0.hdr Tue Jul 24 21:45:00 2001 0:15:00 47 million 154 MB
20010724-214500-1.hdr Tue Jul 24 21:45:00 2001 0:15:00 55 million 175 MB
20010724-220000-0.hdr Tue Jul 24 22:00:00 2001 0:01:50 5 million 17 MB
20010724-220000-1.hdr Tue Jul 24 22:00:00 2001 0:15:00 53 million 171 MB
20010724-221500-0.hdr Tue Jul 24 22:15:00 2001 0:15:00 47 million 154 MB
20010724-221500-1.hdr Tue Jul 24 22:15:00 2001 0:15:00 54 million 175 MB
20010724-223000-0.hdr Tue Jul 24 22:30:00 2001 0:15:00 48 million 159 MB
20010724-223000-1.hdr Tue Jul 24 22:30:00 2001 0:15:00 53 million 170 MB
20010724-224500-0.hdr Tue Jul 24 22:45:00 2001 0:15:00 48 million 156 MB
20010724-224500-1.hdr Tue Jul 24 22:45:00 2001 0:15:00 49 million 158 MB
20010724-230000-0.hdr Tue Jul 24 23:00:00 2001 0:15:00 43 million 140 MB
20010724-230000-1.hdr Tue Jul 24 23:00:00 2001 0:15:00 48 million 153 MB
20010724-231500-0.hdr Tue Jul 24 23:15:00 2001 0:15:00 42 million 139 MB
20010724-231500-1.hdr Tue Jul 24 23:15:00 2001 0:00:54 2 million 8 MB
20010724-233000-0.hdr Tue Jul 24 23:30:00 2001 0:15:00 45 million 148 MB
20010724-233000-1.hdr Tue Jul 24 23:30:00 2001 0:15:00 47 million 151 MB
20010724-234500-0.hdr Tue Jul 24 23:45:00 2001 0:15:00 48 million 159 MB
20010724-234500-1.hdr Tue Jul 24 23:45:00 2001 0:15:00 46 million 146 MB
20010725-000000-0.hdr Wed Jul 25 00:00:00 2001 0:15:00 49 million 160 MB
20010725-000000-1.hdr Wed Jul 25 00:00:00 2001 0:15:00 47 million 151 MB
20010725-001500-0.hdr Wed Jul 25 00:15:00 2001 0:15:00 48 million 156 MB
20010725-001500-1.hdr Wed Jul 25 00:15:00 2001 0:15:00 47 million 151 MB
20010725-003000-0.hdr Wed Jul 25 00:30:00 2001 0:15:00 44 million 143 MB
20010725-003000-1.hdr Wed Jul 25 00:30:00 2001 0:15:00 45 million 145 MB
20010725-004500-0.hdr Wed Jul 25 00:44:59 2001 0:15:00 47 million 155 MB
20010725-004500-1.hdr Wed Jul 25 00:45:00 2001 0:15:00 43 million 138 MB
20010725-010000-0.hdr Wed Jul 25 01:00:00 2001 0:15:00 46 million 152 MB
20010725-010000-1.hdr Wed Jul 25 01:00:00 2001 0:15:00 44 million 140 MB
20010725-011500-0.hdr Wed Jul 25 01:15:00 2001 0:15:00 57 million 188 MB
20010725-011500-1.hdr Wed Jul 25 01:15:00 2001 0:15:00 42 million 135 MB
20010725-013000-0.hdr Wed Jul 25 01:29:59 2001 0:15:00 57 million  
20010725-013000-1.hdr Wed Jul 25 01:30:00 2001 0:15:00 43 million