| -m- | data missing |
| -t- | data truncated |
Labels:The DNS lookup results for each IP address encountered, except the holes and RFC1918 addresses (see below). Each line contains the IP address, the DNS information about it, and the IP address of the DNS server that provided the information. If we learn that there is no such domain (NXDOMAIN) for an IP address, the DNS information of the controlling authority is included in parentheses. Dns lookup errors are enclosed in brackets.
Stitch data: This is an attempt to identify which IP addresses correspond to a single router. No further documentation is available here on this file at the moment.
Edges: These are extracted from the path data, with holes identified. This is probably the file of most interest to graph theorists. The first two fields are the node names of the directed edge. Node names may be an IPv4 or IPv6 address, a unique hole identifier beginning with "HOLE_", or the name of the root, which is either "somerset" or "MH" in this data. The third field is the distance of this edge from the root, and the fourth the number of times this edge at this distance appears in the path data. Most people will probably use only the first two fields.