An internet backbone is therefore the main interconnection point for various subnetworks to enable global data exchange. Similar to the spine in the human body, backbones are the main arteries through which large volumes of data are transmitted between different nodes. These network core areas are characterized by high-performance connections, typically routed via fiber-optic lines, but also via satellite links.
The physical interconnection points between backbones, known as Points of Presence (PoPs), serve as interfaces for handing off data between different network operators and ensure that traffic is forwarded efficiently and reliably.
Redundancy and safeguarding of backbone networks ensure high availability and performance, even in the event of potential disruptions or damage to transmission lines.
