Section 3 of 4
The slow part is often one port
A connection can be provisioned correctly at the door and still fail at eight in the evening. These pieces follow the traffic past the last mile, to the ports and the buildings where networks hand it to one another.
- The slow part is often a single congested portA connection can be perfectly provisioned at the door and still be slow at an interconnect two states away.
- Peering and transit, and who pays whomNetworks either swap traffic for nothing or buy it, and which one applies changes the economics of everything downstream.
- The exchange pointA handful of buildings carry a very large share of national traffic, and their addresses are public.
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