Internet Health Report
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The Internet Health Report delivers data about network performance (latency) between major United States Internet backbones. The measurement agents selected for the Internet Health Report have direct, single homed connections to a backbone so their connectivity is unambiguous. Each measurement agent connects to every other agent every 15 minutes and measures the latency (delay) of establishing a TCP connection across the Internet
The resulting data in the Internet Health Report provides a logical performance map of the Internet. The Internet Health Report matrix is updated every 15 minutes. Any time the delay between two networks exceeds a threshold, a color coded alert indicates the level of the performance problem. Users can drill down to see specifically where the delays are occurring by clicking on any of the color coded boxes in the display.
The numbers in the display represent latency between networks in milliseconds. The total in each box is the geometric mean of all the data points collected between the networks during the specified interval.