Active Data Monitors

CAIDA's current main source of active measurement data is based on the Archipelago (Ark) measurement platform. The resulting IPv4 Routed /24 Topology Dataset is available on request to academic and non-profit researchers and CAIDA members.

• Archipelago (Ark) monitors map
  
  A map and table show all Archipelago (Ark) monitors around the world, and their approximate geographical location.

Passive Data Monitors

Among the passive data sources available to CAIDA in the United States are monitoring locations in several large Internet Service Providers (ISPs). These taps collect packet headers at large peering points and the resulting traces have been used for a wide variety of research projects, ranging from general attempts to characterize the global state of Internet traffic, specific studies of the prevalence of peer-to-peer filesharing traffic, to testing prototype software designed to stop the spread of Internet worms.

• equinix-nyc
  
  The equinix-nyc Internet data collection monitor is located at an Equinix datacente r in New York, NY, and is connected to an OC192 backbone link (9953 Mbps) of a Tier1 ISP between New York, NY and Sao Paulo, Brazil.
• equinix-chicago
  
  The equinix-chicago Internet data collection monitor is located at an Equinix datacenter in Chicago, IL, and is connected to an OC192 backbone link (9953 Mbps) of a Tier1 ISP between Chicago, IL and Seattle, WA.
• equinix-sanjose
  
  The equinix-sanjose Internet data collection monitor is located at an Equinix datacenter in San Jose, CA, and is connected to an OC192 backbone link of a Tier1 ISP between San Jose, CA and Los Angeles, CA.
• ampath-oc12
  
  Up until March 2008, the ampath-oc12 passive monitor tapped two directions of an OC12c link with ATM/AAL5 framing, located at the AMPATH International Exchange Point in Miami, Florida which facilitated peering for and network research on Internet links between U.S. and international research and education (R&E) networks. This passive monitor is no longer in use.