Usually does not rely on
external entities for service
within LAN
Service Provider (carrier, Cable Multi-Service Operator,
and so on) owns the MAN/WAN infrastructure, which is
comprised of transport/higher layer equipment).
Service Providers deliver services/applications to end
users??”typically enterprises (and residential customers)??”
over this (shared) infrastructure for an initial and a
recurring monthly price. The price, depending on the
Service Provider and competitive factors, entails separate
charges for the application/service, bandwidth, physical
access, associated Service-Level Agreement guarantees, etc.
Scale Tens of endpoints, usually
PCs, servers, printers, and so
on, owned by enterprise users
Usually tens of thousands of endpoints, each endpoint being
an enterprise LAN physically connected by a variety of
media and transport technologies.
Scope Few services to meet a
specifi c enterprise??™s needs
Numerous (voice, data, video, storage, etc.) services to
address the needs of a broad range of customers in the
serving area; further, the competitive element requires
introduction of differentiation even amongst these services.
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