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Users are attracted to these resources can be dynamically service stratification. The final
TECHNOL
applications because they can re-configured to fulfil new element to be taken into
be accessed from any Internet service orders with minimal account is flexibility. Service
connection and across human intervention. providers also need the ability
multiple devices, such as to dynamically allocate,
OGY
laptop and desktop According to a recent McKinsey increase, and/or decrease
computers, or PDAs. This Group study “software-enabled network capacity with low
“new” network availability network architecture can touch via programmability to
expands the reach of reduce test and service respond to unpredictable
C
L
virtualised services beyond the delivery time by 20 percent for demand curves – as no one
OUD COMPUTING
“traditional” wireline initial service deployments and can predict which device,
connection. up to 70 percent for line application or service will be
upgrades (such as bandwidth, the next big cloud-based
Devices such as the iPhone service type, Quality of Service bandwidth driver. In addition,
3G, the Google G1 and other [QoS]).” Essentially, networks latency, security and
smart-phones, which offer must become more dynamic provisioning speeds become
ease of use, excellent user and software-defined, taking critical considerations,
experience and a range of into account three key resulting in the need to
third party applications, elements. provide a network that can
further foster this trend. As reliably prioritise and manage
mobile data services become The first of these is time to traffic.
ever more ubiquitous, the use market. It is essential for
of virtualisation and cloud network providers to be able It is increasingly apparent that
computing gains more to set up, activate and deliver the traditional approach to
supporters – not only in the services as quickly as possible. network building and service
consumer and SMB areas, To enable this, higher levels of delivery won’t be able to
which are traditionally more service awareness must be withstand emerging
susceptible to novelties in the built into the access and metro application innovations in the
market, but also among large areas. This will allow for a long run. In this new era,
enterprises. greatly accelerated service network service providers
creation, activation and need a fundamentally different
Responding to cloud assurance. perspective and approach to
computing – new the network that replaces
network architectures The second key element is that today’s “dumb pipe”
Because of all the trends of service differentiation. In application access connectivity
described above, service order to capture more revenue with intelligent, automated
providers find themselves in per customer, it is imperative and service-driven networks.
an urgent need of transitioning that network providers work to
their network architectures and differentiate their services with Those who embrace the fact
service delivery models to stringent Service Level that their networks must
better address this new Agreements (SLAs) for the evolve into an asset that can
environment. various application rapidly adapt to the innovation
requirements. spawned by virtualisation and
An optimised architecture must cloud computing in order to
have the flexibility and To be able to do this capitalise and monetise new
capacity to rapidly satisfy the effectively, network providers services will succeed. Those
customer demand and reduce need to provide much more who do not are bound to face
the time from service request deterministic service behaviour difficulties.
to revenue collection. This is including capabilities such as
only possible if network hierarchical QoS and improved www.ciena.com
WWW.SNSEUROPE.COM MAR/APR 09
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