50 Chapter 2
Standardized Services This attribute essentially enables a Service Provider to deliver
a host of both Packet and traditional TDM (see chapter 10 for more information on
TDM) multi-point services in an efficient and deterministic manner over standardized
equipment platforms. These services underpin the multitude of customer applications
that are emerging across voice, data, and video. Specific components that define this
attribute comprehensively are defined next.
?– Ubiquity Carrier Ethernet enables ubiquitous Ethernet services provided via
standardized equipment, independent of the underlying media and transport infrastructure.
This is a critical prerequisite to extending Ethernet??™s appeal globally
(similar to LAN Ethernet).
?– Ethernet Services Carrier Ethernet supports two types of services: Point-to-
Point (also referred to as Ethernet Line or E-LINE) and multipoint-to-multipoint
Ethernet LAN (referred to as E-LAN) Ethernet services. These services are discussed
in greater detail later in the chapter and are expected to provide the basis
for all Ethernet services.
?– Circuit Emulation Services (CES) Carrier Ethernet supports not only
Ethernet-based services delivered across different transport technologies but also
other (TDM) services transported over Carrier Ethernet itself.
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