alaverkko
Alaverkko is a Finnish term meaning "lower network" and is used to describe a subnetwork within a larger network. The term derives from ala (lower) and verkko (network). In Finnish IT and telecom literature, alaverkko denotes a lower-level network layer that is connected to or embedded in a larger network, typically functioning as an access or distribution network that serves a limited geographic or administrative area. It is commonly contrasted with ylaverkko, the upper network, which forms the core or backbone of the system.
In practice, an alaverkko may refer to a corporate floor's local area network, a department's LAN segment,
The English equivalent is typically subnet or subnetwork, though the exact scope can vary by organization.