LANs are highly
local networks with distances on the order of 1–2 km. The fiber
links are generally not the highest cost considerations, and the ONA
(node) costs may be significant. Also, single- or dual-fiber
infrastructures are more typical than larger fiber bundles.
requirements on a LAN are different from a MAN/WAN because there are
fewer total ON users, and most of these are end users, not other
networks. This implies that there is less aggregation and more of
the traffic is bursty. In many LANs there is minimal need for
circuit services, and stream traffic can be served by high-capacity
packet or cell services. Also, since LANs are typically used and
owned by the same organization, specialized networks are not
uncommon: Internet access, real-time video or analog signal
distribution are three practical applications.