The Layer 1 Virtual Private Network (L1VPN) technology supports multiple user networks over a common carrier
transport network. We present an L1VPN management architecture where network providers manage physical network
infrastructures, service providers manage L1VPN services by composing individual network resources into L1VPNs,
end users invoke L1VPN management services to configure operational L1VPNs. Using a Service-Oriented Architecture
(SOA) and Web Services (WS), we implemented an L1VPN management tool, called User Controlled Light Paths
(UCLP). Network providers use the tool to partition resources at the L1VPN level by assigning resources, together with
the WS based management services for the resources, to service providers. Service providers use the tool to receive
resource partitions from multiple network providers and partner service providers. Further resource partitioning or re-grouping
can be conducted on the received resources, and leasing or trading resources with partner service providers is
supported. After the service providers compose the use scenarios of resources, and make the use scenarios available to
the L1VPN end users as WS, the end users reconfigure the L1VPN without intervention of either network or service
providers.
The Phosphorus project focuses on delivering advanced network services to Grid users and applications interconnected
by heterogeneous infrastructures. The project is addressing some of the key technical challenges to enable on-demand
end-to-end network services across multiple domains. The Phosphorus network concept makes applications aware of
their complete Grid resources environment -computational and networking- and its capabilities. Phosphorus enables and
tests dynamic adaptive and optimised use of the heterogeneous network infrastructure interconnecting various high-end
resources. The project will demonstrate on-demand service delivery across access-independent multi-domain/multi-vendor
research network test-beds on a European and worldwide scope. Phosphorus enhances and demonstrates
solutions that facilitate vertical and horizontal communication among applications middleware and the network resources
across different domains, managed by existing Network Resource Provisioning Systems (NRPS), or domains that
integrate a new Grid-GMPLS (G2MPLS) Control Plane, both under a new AAA architecture to support policy based on-demand
network resource provisioning. This G2MPLS extends ASON/GMPLS in order to provide part of the
functionalities related to the selection, co-allocation and maintenance of both Grid and network resources, by exposing
upgraded interfaces at the UNI and E-NNI network reference points -i.e. G.OUNI and G.E-NNI-. The project outcomes
are going to be demonstrated in a worldwide test-bed.
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