Archipelago Monitor Statistics

Archipelago (Ark): CAIDA's active measurement infrastructure serving the network research community since 2007.
Statistical information for the topology traces taken by this individual Ark monitor is displayed below. See the main statistics page for the full list of monitors

Prev monitor: nrn-nl
Prev in JP: hnd-jp
Prev in Asia: nic-cy
Next monitor: nrt3-jp
Next in JP: nrt3-jp
Next in Asia: nrt3-jp


Tokyo, JP (3)
Time range2023-02-01 08:10 to 2023-02-02 00:22 UTC (16 hours) (2 days ago)
Total traces175500
Traces with responding destinations21565 (12.288%)
ASes with responding destinations2562 (20.473% out of 12514)
Prefixes with responding destinations11131 (17.914% out of 62137)
Protocol versionv4
Generated for cycle 10491 on 2023-02-03 14:01 UTC

All images can be clicked on for more detailed information.

Median RTT per country and US state

Mapping RTT by political boundaries can reveal where high latency issues are located.

Path Dispersion

The paths taken by different traces show where the majority of a monitor's traffic travels.

Path Length Distributions

Path length distributions show, on aggregate, how well-connected a monitor is to the rest of the Internet.