The IP/MPLS over ASON/GMPLS test bed of the IST project LION

Cavazzoni, Carlo; Barosco, V.; D’Alessandro, Alessandro; Manzalini, Antonio; Milani, S.; Ricucci, G.; Morro, Roberto; Geerdsen, R.; Hartmer, U.; Lehr, G.; Pauluhn, U.; Wevering, S.; Pendarakis, Dimitrios; Wauters, Nico; Gigantino, R.; Vasseur, Jean-Philippe; Shimano, K.; Monari, G.; Salvioni, A.

doi:10.1109/jlt.2003.819584

Cited by 16 publications

(5 citation statements)

References 6 publications

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“…This facilitates a smooth migration with the existing transport network infrastructure and services. The overlay model has also been experimented extensively in laboratories and research projects [11].…”

Section: Network and Traffic Modelsmentioning

confidence: 99%

Providing differentiated services for multi-class traffic in IP/MPLS over WDM networks

2007

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Providing differentiated services in IP/MPLS over WDM networks has attracted a lot of recent attention. This article extends the Path Inflation Control (PIC) policy recently proposed by us to provide differentiated services in IP/MPLS over WDM networks with traffic grooming. Three different algorithms are considered for provisioning differentiated services. The simulation results show that, with two of the three algorithms, the network cannot only provide differentiated services when the traffic load is high but also gives significantly lower blocking for the lower priority class traffic and for the overall traffic at low traffic loads.

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Section: Network and Traffic Modelsmentioning

confidence: 99%

Providing differentiated services for multi-class traffic in IP/MPLS over WDM networks

2007

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“…Since Generalized Multiprotocol Label Switching (GMPLS) was born, several testbeds have been implemented [1], [2], [3], [4]. Although our proposal could be used in any scenario, it is clearly oriented to immersive communications, adding a QoS platform in order to give higher priority to specific data flows, as some of them could be more sensible to electronic bottleneck between access and core segments.…”

Section: Introductionmentioning

confidence: 99%

All-optical transport layer and GPON access for immersive communications

Beltran

Blanco

Cortés

et al. 2009

2009 International Conference on Ultra Modern Telecommunications &Amp; Workshops

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Immersive communications, such as high quality 3D videoconference, are the best example of what Next Generation Networks are capable in the short term. This work is being carried out within the VISION project framework, supported by the Spanish Commitee for Industrial and Technology Development and with the main objective of developing such videoconference system. The presented system provides optical transport, switching capability and enough flexibility to allocate a QoS stage between access and core network segments. The architectural model relies on the optical circuit switching (OCS) paradigm in a first approach and it is ready to support burst switching communications, optimizing even more the network resources. We present the overall architecture of such network, the building blocks of a node, the control plane based on the DRAGON open-source suite and how interfacing with higher control layers is solved. Finally, the evolution from OCS to OBS and the enabling technologies which make it possible are discussed.

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“…It may be used to facilitate a smooth migration to IP/MPLS over WDM optical networks from existing optical transport network infrastructure and services. The overlay model has also been extensively studied and experimented [10] and is probably more realistic and feasible to implement at present than other schemes.…”

Section: Introductionmentioning

confidence: 99%

A new lightpath establishing method for dynamic traffic grooming under the overlay model

et al. 2008

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This paper proposes the use of the saturated cut (SC) method to improve the network performance through efficient dynamic traffic grooming in IP/MPLS over WDM networks using an overlay model. With the SC information from the IP/MPLS layer, the optical layer can calculate a lightpath between two node sets rather than the earlier suggested approach of calculating such paths just between two nodes for better performance. We have used two criteria, bandwidth and path length, to find SCs and have proposed two algorithms which incorporate this in the path inflation control (PIC) policy proposed earlier. Two typical networks, NSF and COST239, were used for examining the network performance. The simulation results show that though both methods can significantly improve the overall network performance the SC method is more efficient for a sparse network like the NSF network rather than for a dense network like the COST239 network. Since calculating lightpaths for all node pairs for a SC is time consuming, we propose a considerably simpler heuristic approach that can provide almost the same level of performance improvement as the SC method but with much lower complexity.

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The IP/MPLS over ASON/GMPLS test bed of the IST project LION

Cited by 16 publications

References 6 publications

Providing differentiated services for multi-class traffic in IP/MPLS over WDM networks

Providing differentiated services for multi-class traffic in IP/MPLS over WDM networks

All-optical transport layer and GPON access for immersive communications

A new lightpath establishing method for dynamic traffic grooming under the overlay model

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