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


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cgs-us

University of Maryland
College Park, US (123)
IPv6 data used (switch to IPv4)
Time range2025-09-03 09:18 to 2025-09-04 16:32 UTC (1 day 7 hours) (1 day ago)
Total traces459190
Traces with responding destinations44361 (9.661%)
ASes with responding destinations12048 (34.278% out of 35148)
Prefixes with responding destinations39468 (17.698% out of 223014)
Protocol versionv6 (switch to v4)
Generated for cycle 20250903 on 2025-09-05 09:29 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.