Identify the top routes from the site broken out By Subnet, By AS Path, By AS Destination Peer or By AS Destination.

Clicking on a subnet, AS Path, or AS will retrieve additional information about that address. Clicking on the [+] symbol drills down to a more detailed view of the subnets in a particular AS, or the path to a particular destination subnet. Clicking on column headings sorts the column. For example, clicking on Avg. Hops sorts by the average number of hops to the destination.

Selecting the Custom option provides additional query options:

The By Destination Address option allows an address to by specified and presents information on the path to the subnet containing the address. This path view is also accessed by drilling down from the top paths table above.

The detailed Path view shows the routers on the path sorted by the TTL (number of hops) to reach them. Clicking on a router IP address will obtain additional information about the organisation maintaining the router. Delay and loss information is provided for each router in the Router Stats section of the table.

Note: In addition to form-based access, the routing query can be directly accessed from programs using URL encoding of the query arguments.

Note: Path analysis requires that automatic tracing be enabled.