Fiber-based solutions such as SONET and WDM, on
the other hand, are relatively expensive because their key benefits (notably resiliency
and scalability) incur a higher cost to implement and manage. Wireless solutions are
TABLE 16.6 Support of Carrier Ethernet Attribute??”Standardized Management
Commercial
Solution Unifi ed Management Carrier-Class OAM Rapid Provisioning
Copper Partially supported Partially supported
EFM only
Marginally supported
HFC Marginally supported Marginally supported Marginally supported
PON Marginally supported Marginally supported Marginally supported
WDM Fully supported
TL-1 OSS, GMPLS
Substantially supported Substantially supported
FSO Marginally supported Marginally supported Marginally supported
TDM Not supported Not supported Not supported
SONET Substantially supported
Typically deployed in multi-vendor
environments
Substantially supported Marginally supported
RPR Fully supported Fully supported Fully supported
Bridging Substantially supported
Only SNMP MIBs standardized
Fully supported Substantially supported
MPLS Fully supported
Uses IETF standardized tools and
across multi-vendor environments
Fully supported Fully supported
WiMax Marginally supported Marginally supported Substantially supported
512 Chapter 16
attractive economically since they speed up deployment and preclude the need for costly
infrastructure.
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