This could result in more EoS equipment
or in ancillary equipment (e.g., Ethernet switches or edge routers) to support the
advanced Ethernet functions. This can be mitigated somewhat by the integration of
more Ethernet functionality into SONET equipment. More integration is possible and
is being pursued by equipment vendors, but this has technical and operational limits.
Service providers push against these operational limits when they try to integrate
EoS equipment with complex Ethernet functionality into their existing OSSs. This
process can be time-consuming (meaning deferred or lost revenues for service providers)
and extremely expensive, and is perhaps the chief argument today against integrating
significant amounts of complex Ethernet functionality into SONET transport
equipment.
Typical Deployment/Scenarios
As service providers consider the strengths and weaknesses of EoS-enabled MSPPs,
they have converged on several typical deployment scenarios for MSPPs in Ethernet
5 Network element solutions using EoS, or any Ethernet technology, can support a low density of Ethernet
switching capabilities and still provide MEF-compliant, Carrier Ethernet services.
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