Eduard Escalona

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Bandwidth demands resulting from generated traffics by emerging applications, when aggregated at the edge of the networks for transport over core networks can only be met with high-capacity WDM circuit switched optical networks. An efficient end-to-end delivery of packet streams in terms of network control, operation and management is one of the key(More)
Future Internet services are characterized by global delivery of high-performance network-based applications over a high-capacity dynamic optical network. As these types of applications evolve, it is not feasible or scalable for network operators to setup and configure dedicated network for each Internet application type or category. Therefore, a key(More)
Network Function Virtualization (NFV) has emerged as an operator proposal for offering network services with network functions implemented in software, which may be located in Data Centers, network nodes or even in a virtual machine. NFV is theoretically applicable to any network function and aims at simplifying the management of heterogeneous hardware(More)
In this paper, a novel Infrastructure as a Service architecture for future Internet enabled by optical network virtualization is proposed. Central to this architecture is a novel virtual optical network (VON) composition mechanism capable of taking physical layer impairments (PLIs) into account. The impact of PLIs on VON composition is investigated based on(More)
In this paper we propose energy efficient design and operation of infrastructures incorporating integrated optical network and IT resources. For the first time we quantify significant energy savings of a complete solution jointly optimizing the allocation and provisioning of both network and IT resources. Our approach involves virtualization of the(More)
GMPLS is a Network Control Plane (NCP) architecture that implements the concept of Grid Network Services (GNS). In the Phosphorus framework, GNS allows the provisioning of network and Grid resources in a single-step through a set of seamlessly integrated procedures. The implementation of GNS poses a number of requirements on the Control Planes of the(More)
Software-Defined Networking and Network Functions Virtualization have initiated a new landscape within the telecom market landscape. Initial proof-of-concept prototypes for NFV-enabled solutions are being developed at the same time SDN models are identified as the futures solutions within the telecom realm. In this article, we provide a brief overview of(More)
This paper presents a novel service-oriented network architecture to bridge the informational gap between user applications and optical networks providing technology-agnostic multigranular optical network services for clouds. A mediation layer (service plane) between user applications and network control is proposed to facilitate a mapping process between(More)
In the ITU-T ASON architecture, the control plane is responsible for providing intelligence to the network. The GMPLS paradigm pleads for a separation between the control plane and the forwarding plane. If the control plane is deployed disjoint from the forwarding plane, recovery mechanisms to ensure its proper operation are required. In this paper, on one(More)