Experimental demonstration and comparison of distributed and centralized multi-domain resilient translucent WSON

Liu, Lei; Tsuritani, Takehiro; Casellas, Ramon; Martínez, Ricardo; Muñoz, Raül; Tsurusawa, M.

doi:10.1109/ecoc.2010.5621238

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…The dynamic dissemination of available wavelengths and link OSNR is achieved by introducing new Type-Length-Value (TLV) into type 10 opaque link state advertisement (LSA), and the dynamic dissemination of node OSNR and available 3R regenerators including their specific characteristics (e.g. tunable range) is implemented as a top TLV of the node [5][6][7][8][9].…”

Section: Gmpls-based Control Plane For Translucent Wsonmentioning

confidence: 99%

“…However, during the technical evolution of control plane in optical networks, an important question must be answered, that is, how much benefit can we get from such evolution? To answer this question, in this paper, we review our recent research activities [5][6][7][8][9][10][11][12][13] related to GMPLS-based, PCE/GMPLS-based, and OpenFlow-based control planes for a translucent WSON. We present the technical details, and summarize the advantages and disadvantages of these control plane techniques.…”

Section: Introductionmentioning

confidence: 99%

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From GMPLS to PCE/GMPLS to OpenFlow: How much benefit can we get from the technical evolution of control plane in optical networks?

Liu

Tsuritani

Morita

2012

2012 14th International Conference on Transparent Optical Networks (ICTON)

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Control plane techniques are very important for optical networks since they can enable dynamic lightpath provisioning and restoration, improve the network intelligence, and greatly reduce the processing latency and operational expenditure. In recent years, there have been great progresses in this area, ranged from the traditional generalized multi-protocol label switching (GMPLS) to a path computation element (PCE)/GMPLS-based architecture. The latest studies have focused on an OpenFlow-based control plane for optical networks, which is also known as software-defined networking. In this paper, we review our recent research activities related to the GMPLS-based, PCE/GMPLS-based, and OpenFlow-based control planes for a translucent wavelength switched optical network (WSON). We present enabling techniques for each control plane, and we summarize their advantages and disadvantages.

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Section: Gmpls-based Control Plane For Translucent Wsonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

From GMPLS to PCE/GMPLS to OpenFlow: How much benefit can we get from the technical evolution of control plane in optical networks?

Liu

Tsuritani

Morita

2012

2012 14th International Conference on Transparent Optical Networks (ICTON)

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“…Several works in literature investigated the support of protection and restoration mechanisms in multi-domain scenario. In particular, distributed mechanisms have been proposed for both protection [133], [134] and restoration mechanisms [135], [136]. However, also in this case, the utilization of a centralized PCE in each domain and the proper PCEP communication strategies described in the previous sections may offer significant improvement, especially for protection schemes.…”

Section: E Multi-domain Pce-based Protection and Restorationmentioning

confidence: 99%

“…However, also in this case, the utilization of a centralized PCE in each domain and the proper PCEP communication strategies described in the previous sections may offer significant improvement, especially for protection schemes. This improvement is specifically demonstrated by the work in [134] that performs a comparison between distributed and centralized implementation of protection in multi-domain WSONs.…”

Section: E Multi-domain Pce-based Protection and Restorationmentioning

confidence: 99%

A Survey on the Path Computation Element (PCE) Architecture

Paolucci

Cugini

Giorgetti

et al. 2013

IEEE Commun. Surv. Tutorials

112

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Quality of Service-enabled applications and services rely on Traffic Engineering-based (TE) Label Switched Paths (LSP) established in core networks and controlled by the GMPLS control plane. Path computation process is crucial to achieve the desired TE objective. Its actual effectiveness depends on a number of factors. Mechanisms utilized to update topology and TE information, as well as the latency between path computation and resource reservation, which is typically distributed, may affect path computation efficiency. Moreover, TE visibility is limited in many network scenarios, such as multi-layer, multidomain and multi-carrier networks, and it may negatively impact resource utilization. The Internet Engineering Task Force (IETF) has promoted the Path Computation Element (PCE) architecture, proposing a dedicated network entity devoted to path computation process. The PCE represents a flexible instrument to overcome visibility and distributed provisioning inefficiencies. Communications between path computation clients (PCC) and PCEs, realized through the PCE Protocol (PCEP), also enable inter-PCE communications offering an attractive way to perform TE-based path computation among cooperating PCEs in multi-layer/domain scenarios, while preserving scalability and confidentiality. This survey presents the state-of-the-art on the PCE architecture for GMPLS-controlled networks carried out by research and standardization community. In this work, packet (i.e., MPLS-TE and MPLS-TP) and wavelength/spectrum (i.e., WSON and SSON) switching capabilities are the considered technological platforms, in which the PCE is shown to achieve a number of evident benefits.

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“…Considering the fact that the complex IA-RWA computations in optical networks are likely to be CPU-intensive [19], a straightforward solution to offload the NOX and thus enhance the network scalability is to decouple the IA-RWA computation to one or more dedicated path computation element (PCE) [20] using an open and standard interface and protocol based on the PCE communication protocol (PCEP) [21]. Note that it is possible to use powerful hardware (e.g., more CPUs) for the NOX to scale up its computation capability.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a Dynamic Transparent Optical Network Employing Flexible Transmitters/Receivers Controlled by an OpenFlow–Stateless PCE Integrated Control Plane [Invited]

Liu

Choi

Casellas

et al. 2013

J. Opt. Commun. Netw.

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Experimental demonstration and comparison of distributed and centralized multi-domain resilient translucent WSON

Cited by 6 publications

References 2 publications

From GMPLS to PCE/GMPLS to OpenFlow: How much benefit can we get from the technical evolution of control plane in optical networks?

From GMPLS to PCE/GMPLS to OpenFlow: How much benefit can we get from the technical evolution of control plane in optical networks?

A Survey on the Path Computation Element (PCE) Architecture

Demonstration of a Dynamic Transparent Optical Network Employing Flexible Transmitters/Receivers Controlled by an OpenFlow–Stateless PCE Integrated Control Plane [Invited]

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