Ultimately, of course, as noted before, economics is just one factor to consider, and
several other pertinent factors are usually taken into account before a Service Provider
can meaningfully settle on an optimal solution.
Carrier Ethernet Attribute/
Delivery Solution Copper HFC PON WDM FSO TDM SONET RPR Bridging MPLS WiMax
Standardized Service
Support
Ubiquity P P P P S F P P S F P
Ethernet Services P P P P F F S F F F F
Circuit Emulation N N N F N F F F M F N
Granularity of B/W
and QoS P P S S F S M F S F P
Converged Transport S P F F F F F F F F F
Scalability
Millions of End Users M P F F P F M F F F P
Geographic Reach M P M F P F S F F F P
Bandwidth Granularity M P F S F F M F F S F
Reliability
Service Resiliency M M N F M F F F F F M
Protection P P N F P S F S S S P
Restoration F P N F F F F F S F F
Quality of Service (QoS)
Granular QoS M M N F M F M F S F P
End-to-End SLA P N S S P F F F F F N
Provisioning M M N S M F M F S S M
Standardized Management
Unifi ed Management P M M F M N S F S F M
Carrier-Class OAM P M M S M N S F F F M
Rapid Provisioning M M M S M N M F S F S
Legend: F, Fully supported;
S, Substantially supported;
P, Partially supported; M,
Marginally supported; N,
Not supported
TABLE 16.
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1128
1129
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1134
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