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Guest Column
What is GMPLS?
A Unified Vision for Carrier
Networks (continued)
In a G-MPLS enabled network, however, the
communication barrier between services and transport can be
eliminated, and the required protection established with minimum
resources. Resources can thus be allocated to other uses, and the
savings passed on to customers.
New services, new revenue
New service offerings enabled by G-MPLS mean new
revenue opportunities for service providers.
Bandwidth on demand
Services with QoS constraints and the large
bandwidth increments they need are extremely difficult to provision
in real-time on a layered network. The layer consolidation offered
by G-MPLS enabled architecture allows any combination of fine grain
packet LSPs to coarse grain OC-192 LSPs. Thus, service providers
deploying G-MPLS networks in a consolidated network will be able to
offer a customer, for example, an OC-12 from New York to London in
the morning and an OC-192 from New York to San Francisco the same
afternoon, while making optimal use of all network resources.
Differentiated services
A G-MPLS network enables service providers to
manage traffic across all layers. They can view all the network
layers and efficiently allocate resources to the most appropriate
layer, thereby tailoring Differentiated Services to their customers’
varied and changing needs, while reducing costs through optimal
resource usage.
Comprehensive and flexible SLAs
G-MPLS enables service providers to reap greater
benefits through more comprehensive and flexible Service Level
Agreement (SLA) offerings to customers. With resource allocation not
longer restricted to a specific network layer, service providers
have greater flexibility in designing and enforcing SLAs, which can
be used to generate new revenues.
Simplification,
savings and services
G-MPLS offers service providers a vehicle to help
them migrate their networks from the current complex and costly
architectures to simpler, more efficient models. Service providers
who deploy G-MPLS will not only see significant savings through
improved network efficiencies, but will be able to offer advanced,
revenue rich services to existing and new customers.
Dr. Alberto Leon-Garcia is
Chief Technology Officer and Co-founder of
AcceLight Networks. He was the first holder of the
Nortel Institute Chair in Network Architecture and Services at the
University of Toronto and has led several
major research projects at the Canadian Institute of
Telecommunications Research and at the Ontario Information
Technology Research Centre.
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