The discussions inside the GNA group have led to a global network architecture model that consists of a powerful intercontinental transmission
substrate, consisting of
The GXPs in this architecture model have two major functions:
We envision at least two GXPs per continent or region that are placed in consultation with the region’s R&E Network organizations, taking the
intercontinental fiber paths into account.
The GNA substrate supports the creation, modification, and deletion of overlay networks. In the first instance, this is expected to be manual. Over
time, it is expected that this can be fully automated.
Examples of permanent overlay networks include:
Examples of ad hoc overlay networks include: