A differentiated optical services model for WDM networks

Golmie, Nada; Ndousse, T.D.; Su, David

doi:10.1109/35.819898

Cited by 93 publications

(41 citation statements)

References 7 publications

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“…Moreover, these papers assume that all nodes are equipped with monitors. Other researches [5,6] describe the capability of an optical monitoring module. Generally, an optical monitor can measure single connection optical power as well as its optical SNR (signal noise ratio).…”

Section: Previous Workmentioning

confidence: 99%

Attack monitoring and localization in All-Optical Networks

Somani

2006

Cluster Comput

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An attacker's connection can propagate quickly to different parts of a transparent All-Optical Network. Such attacks affect the normal traffic and cause a quality of service degradation or outright service denial. Attack monitors can collect the information of each link and each node to help diagnose the attacker's exact location.Quick detection and localization of an attack source helps avoid losing large amounts of data in an all-optical network. However, to detect attack sources, it is not necessary to put monitors on all nodes. Since not every wavelength on every link is being used all the time, we propose to use the idle wavelengths to setup diagnostic connections and obtain the necessary information needed for diagnosis purposes. We show that placing a relatively small number of monitors at some key nodes in a network is sufficient to achieve level of performance. However, the monitor placement policy, routing policy, and diagnosis method are challenging problems.We, in this paper, first develop a monitor placement policy, a test connection policy, and a routing policy based on our definition of crosstalk attack and monitor node models. With these policies, we show that we can always detect and localize the malicious connections as long as there is no more than one malicious connection on each wavelength in the whole network. After this, we develop a scalable diagnosis method, which can localize the sources of the such malicious attacks in a fast manner.

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Section: Previous Workmentioning

confidence: 99%

Attack monitoring and localization in All-Optical Networks

Somani

2006

Cluster Comput

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“…Golmie et al [6] formulate a differentiated optical service model which classifies the lightpaths according to a set of optical parameters that capture the wavelength's quality and reliability. The parameters are specified in quantitative terms (delay, average bit-error-rate (BER), jitter and bandwidth) or based on functional capabilities (monitoring, protection and security).…”

Section: Related Work and Contributionmentioning

confidence: 99%

Service differentiation in IP/MPLS over ASON/GMPLS networks

et al. 2009

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There is a general agreement that the future infrastructure for broadband communications will consist of Automatically Switched Optical Networks (ASONs) controlled by the Generalized Multi-Protocol Label Switching (GMPLS) control plane. Due to the convergence of most services on the Internet Protocol (IP) layer, ASON/GMPLS networks need to provide transport for a variety of applications having different Quality of Service (QoS) requirements. This implies that the Differentiated Service paradigm, which improves the QoS in pure IP networks, needs to be extended to the new underlying infrastructure. This article proposes and compares three schemes for the service differentiation in IP/MPLS over ASON/GMPLS networks. Simulation results demonstrate that a fair trade-off between QoS and resource utilization is achieved when combining routing policy differentiation (RPD), virtual topology differentiation (VTD), and virtual topology sharing (VTS) techniques. The RPD technique decides on the multilayer routing policy to apply depending on the Class of Service (CoS). The VTD technique transports different CoS over different independent virtual topologies. The VTS technique introduces a certain degree of resource sharing among the different virtual topologies

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“…This framework extends the Differentiated Optical Services (DoS) model presented in [3]. We consider other QoS proposals for WR networks in the context of DoS.…”

Section: Qos In Wr Networkmentioning

confidence: 99%

Quality-of-service mechanisms in IP-over-WDM networks

et al. 2002

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Classical approaches to quality-of-service (QoS) provisioning in IP networks are difficult to apply in all-optical networks. This is mainly because there is no optical counterpart to the store-and-forward model that mandates the use of buffers for queuing packets during contention for bandwidth in electronic packet switches. Since plain IP assumes a best effort service model, there is a need to devise mechanisms for QoS provisioning in IP over wavelength-division-multiplexing, or IP-over-WDM, networks. Such mechanisms must consider the physical characteristics and limitations of the optical domain. This paper presents a classification and a survey of recent proposals for QoS provisioning and enforcement in IP-over-WDM networks. The different QoS proposals surveyed cover three major optical switching methods: wavelength routing, optical packet switching and optical burst switching.

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A differentiated optical services model for WDM networks

Cited by 93 publications

References 7 publications

Attack monitoring and localization in All-Optical Networks

Attack monitoring and localization in All-Optical Networks

Service differentiation in IP/MPLS over ASON/GMPLS networks

Quality-of-service mechanisms in IP-over-WDM networks

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