A distributed topology information system for optical networks based on the semantic web

Abstract

The research networking community has embraced novel network architectures to provide e-Science applications with dedicated connections instead of shared links. IP and optical services converge in these new infrastructures to form hybrid networks. Lightpaths are the services offered to clients in the optical portion of the network. They are chosen because they guarantee the appropriate QoS in terms of bandwidth and latency.NDL -the Network Description Language -is a data model offering users and providers of lightpaths with a common ontology to describe topology information of hybrid optical networks. The strength of NDL is that it supports a wide range of applications, including pathfinding, visualisation and asset management, via the definition of a common data model to exchange network descriptions. Since NDL is based on the Semantic Web techniques, it is straightforward to relate NDL with application-specific ontologies. In this paper we present the current status of the NDL schemas and its use in several applications.

On-demand provisioning of Cloud and Grid based infrastructure services for collaborative projects and groups

“…The described model is being developed in the GEYSERS project [6] and aims to propose a common network and IT resource description language that will extend and combine the existing Network Description Language (NDL) [12] and the recently proposed Unified Service Description Language (USDL) [13].…”

Automated transport service management in the future Internet: concepts and operations

“…-The Presentation Layer is related to the network services to be implement. A few descriptive languages tailored to specific scenarios were proposed in the past [11][12][13][14]. We proposed a more general one called Network Resource Description Language (NRDL) [15], which is designed for a network service composition context based on an ontology model.…”

A new framework for GLIF Interdomain Resource Reservation Architecture (GIRRA)

“…Existing models include the Common Information Model [11] that provides an object-oriented schema for different devices but does not have a schema that represents some of the DWDM gear in a GLIF environment. The authors of [12] developed the Network Description Language (NDL) which is a modular set of schemas based on the Resource Description Format mainly to describe networks. This functional model is based on International Telecommunication Union (ITU) G.805 [13] with the addition of capability information.…”