Over
a three-year period, there was a 39 percent savings in CAPital EXpenditure (CAPEX)
and a 49 percent savings in OPerational EXpenditure (OPEX) when an Ethernet platform
was used as opposed to the legacy SONET infrastructure.
Further, Service Providers employing an Ethernet platform can enable a comprehensive
and sophisticated set of services; and with configurable software capability, most
of this is done remotely and precludes truck rolls and the otherwise large overhead
associated with TDM. Another study by the MEF (Figure 1.16) showed a 50 percent
savings in truck rolls alone for provisioning a service using Ethernet versus the static
approaches common when delivering TDM services.
Reduced OPEX Through Simple, Converged Access With voice increasingly transforming
from a circuit-switched application to a packetized application delivered over an
Ethernet interface, a key barrier to Ethernet becoming a platform for convergence is
being overcome. Most, if not all, applications, whether simple data, storage, video, or
multimedia, are already being delivered over Ethernet.
With a single physical connection supporting all voice and data applications, the
Service Provider simplifies access to the customer; with the end-user enterprises also
being generally proficient in Ethernet technology, this usually reduces overhead for
commissioning and troubleshooting (as noted elsewhere in this section).
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