AMSON: an Extended Architecture for Adaptive Service Provisioning in Transport Networks

Zhang, Jie; Wang, Lei; Chen, Xiuzhong; Gu, Wanyi

doi:10.1109/ofc.2008.4528112

Cited by 14 publications

(5 citation statements)

References 3 publications

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“…We describe the PCE-based fast routing strategy based on the PCE structure and character in GMPLS optical networks that illustrate in previous work done by our group [5]. PCE-based fast routing strategy introduces three critical components-embedded PCE module, PCE-based routing protocol extension and PCE-based Double Layer Dijkstra algorithm-to overcome the defects of sourcenode-based routing strategy.…”

Section: Critical Components Of Pce-based Fast Routing Strategymentioning

confidence: 98%

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Performance of PCE-based Fast Routing Strategy in Large-scale Multi-layer Multi-domain Optical Networks

Han¹,

Zhang²,

Zhao³

et al. 2010

Journal of Optical Communications

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This article focus on the routing strategy for burgeoning optical networks and a Path Computation Element (PCE)-based fast routing strategy upon ASON/GMPLS optical networks was proposed.The computation capability of PCE makes fast routing possible in large-scale multi-layer multi-domain optical networks. The performance of the strategy is verified by theoretical analysis and simulation work includes performance improvement on flooding suppression capability, routing delay and traffic blocking probability. The theoretical analysis and simulation result indicate that the application of PCE-based fast routing strategy can reduce flooding information of path computation request as well as the network load significantly and improve the QoS for decreasing the convergence time of routing computation.The verification work on the prevalent OMNet software platform shows that the PCE-based fast routing strategy is an effective innovation to the routing mechanism of increasing sophistication of optical networks.

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Section: Critical Components Of Pce-based Fast Routing Strategymentioning

confidence: 98%

“…Examined by simulation data and formula (5), it is clear that PCE-based fast routing strategy can reduce the traffic blocking probability effectively in large-scale network when failure happened as shown in Fig. 7 and Fig.…”

Section: Traffic Blocking Probabilitymentioning

confidence: 99%

Performance of PCE-based Fast Routing Strategy in Large-scale Multi-layer Multi-domain Optical Networks

Han¹,

Zhang²,

Zhao³

et al. 2010

Journal of Optical Communications

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“…This will be achieved in the ADRENALINE Testbed® using the reconfigurable wavelength-routed network functionalities and applying or not the connection-oriented Ethernet technologies on top. Here, the key element of our approach is the SDE, which is based on the adaptive multi-service optical network architecture proposed by Zhang et al in [21]. The service database integrated in the SDE includes translation strategies from composite services, e.g., VPN, into provisioning requests to the GMPLS control plane in charge of establishing and deleting connections, either lightpaths or Ethernet bandwidth.…”

Section: Automation Of Connectivity Adaptation and Service Virtualizamentioning

confidence: 99%

Anticipation of Traffic Demands to Guarantee QoS in IP/Optical Networks

Pinart

2010

Future Internet

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Traffic in the Internet backbone is expected to grow above a few Tbit/s in 2020. To cope with this, operators are moving to IP/optical network architectures, where IP is the convergence layer for all services. On the other hand, the quality of service (QoS) requirements of future applications encompasses the individualization of services and the assurance of stricter quality parameters such as latency, jitter or capacity. In other words, future optical networks will not only transport more IP data, but they will also have to offer differentiated QoS requirements to services. Finally, some emerging applications, e.g., grid computing, need greater flexibility in the usage of network resources, which involves establishing and releasing connections as if they were virtualized resources controlled by other elements or layers. In this context, traffic-driven lightpath provisioning and service-plane approaches arise as very interesting candidate solutions to solve the main challenges described above. This work reviews the concepts of service-oriented and selfmanaged networks and relates them to propose an integrated approach to assure QoS by offering flow-aware networking in the sense that traffic demands will be anticipated in a suitable way, lightpaths will be established taking into account QoS information (i.e., impairments) and complex services will be decomposed into optical connections so that the above techniques can be employed to assure QoS for any service.

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“…The RSVP-TE module is used to send signaling to other RSVP-TE, configure the transport plane and notify OSPF-TE module to update its TED. Fig.1 Functional architecture of PCE In previous work, we have presented an extended architecture for adaptive service provisioning to enhance the existing ASON capability and setup the adaptive multi-services optical networks (AMSON) testbed [5] [6]. In order to realize PCE architecture, we can modify and extend the presented AMSON testbed as shown in Fig.2.…”

Section: Architecture and Functionmentioning

confidence: 99%

<title>A PCE-based fast reroute algorithm for multi-failures in multi-domain optical networks</title>

et al. 2009

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AMSON: an Extended Architecture for Adaptive Service Provisioning in Transport Networks

Cited by 14 publications

References 3 publications

Performance of PCE-based Fast Routing Strategy in Large-scale Multi-layer Multi-domain Optical Networks

Performance of PCE-based Fast Routing Strategy in Large-scale Multi-layer Multi-domain Optical Networks

Anticipation of Traffic Demands to Guarantee QoS in IP/Optical Networks

<title>A PCE-based fast reroute algorithm for multi-failures in multi-domain optical networks</title>

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