COSIGN DCN Control Plane functions Sample Clauses

COSIGN DCN Control Plane functions. The control plane functions expose some abstract, technology-independent DCN services (e.g. network connectivity, monitoring, optical infrastructure virtualization etc.) which are consumed at the orchestrator layer. The integration of these services within the overall cloud and DC platform allows the orchestrator to provide a converged management of computation, storage and network resources, enabling the three use-cased defined in deliverable D1.1 [1]: • Use-case 1: On-demand deployment and provisioning of converged Virtual Data Centres (VDCs). • Use-case 2: On-demand deployment and provisioning of application-level overlay virtual networks over programmable optical infrastructures. • Use-case 3: DC operational support and management orchestration. COSIGN control plane must ensure that the orchestrator is supplied with the appropriate network information to implement its service logic. Therefore, the control plane has to abstract network resources complexity but still providing all the relevant underlying information (monitoring data, physical performance, network service parameters, etc…) to the upper layer in a way that allows the orchestrator to carry out its own tasks and processes. Interfaces and communication flows between orchestrator and SDN control plane extends the currently available northbound interfaces (e.g. for Create, Read, Update, Delete – CRUD – operations on OpenStack Neutron resources). The objective is to enable the on-demand creation of enhanced and programmable virtual networks (virtual optical slices or overlay networks, depending on the use case), which can be managed and manipulated dynamically as workload requirements change. Therefore the COSIGN architecture includes mechanisms and algorithms for efficient allocation of virtual network resources at the SDN controller (WP3) and for converged virtual IT and network composition at the orchestration and management layer (WP4). Special attention in WP3 is given to the algorithms that exploit those unique features offered by the new optical devices developed in WP2. The most important capabilities implemented at the COSIGN DCN control plane are outlined below. Seamless Provisioning of Network Resources Network resources are provisioned in a transparent end-to-end manner and the infrastructure underpinning the services is configured automatically to achieve fast service deployment (e.g. within minutes).
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