As a result, skilled technical staff will be required to run these networks, adding to
operational overheads and inevitably impacting Carrier Ethernet (EoWDM) pricing.
Typical Deployment Scenarios
In light of the just described benefits and shortcomings, a consensus is emerging on
some amenable scenarios for EoF and EoWDM. In general, EoF is good for shorterdistance
fiber-rich settings and customers with relaxed fault tolerance and OAM needs.
Alternatively, EoWDM is a more carrier-ready approach and has a ???sweet-spot??? for
multigigabit users with genuine MAN/WAN coverage and robust QoS/OAM needs. As
DWDM costs decline, the price-per-bit economics of EoDWM will also become increasingly
compelling [12]. Some of the main deployment scenarios are now detailed.
Corporate Extension Scenarios
Businesses continue to scale and simplify their networks and are moving away from
legacy private line services. In the corporate sector, Carrier Ethernet demand is coming
224 Chapter 8
from several key areas. A major application is data-center/back-office consolidation
of server farms and data-warehousing operations to improve operational efficiencies.
Pages:
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559