I read the document about SureRoute here:
The optimal path between origin and edge is selected based on real-time data collected by Akamai. To test for the fastest, most-available path, Akamai edge servers “race” at predefined intervals. In this process, content is downloaded from your origin site over the standard path and via an alternative path between Akamai edge servers simultaneously.
I want to know if Akamai edge servers "race" is performed by each edge servers all over the world?