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

Liu, Lei; Tsuritani, Takehiro; Morita, Itsuro

doi:10.1109/icton.2012.6254417

Cited by 10 publications

(11 citation statements)

References 12 publications

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“…Hence, the model is extended in [6] with a topology server that provides to the PCE the upto-date topology, including the idle wavelengths information. In another approach for dynamically provisioning lightpaths, the authors introduce the virtual OpenFlow switch (VOFS) with virtual Ethernet interfaces that correspond to the physical optical cross-connect (OXC) interfaces [7]. These OpenFlow enabled OXCs are controlled by the external controller and communicate through the OpenFlow protocol.…”

Section: A Sdn/openflow For Packet-circuit Switchingmentioning

confidence: 99%

“…(6), to the already created optical circuit-flow CFlow of the provisioned lightpath. This approach of mapping packet to circuit flows has been deployed [2,4,7] and can be used for the GST traffic.…”

Section: ) Sm Flowsmentioning

confidence: 99%

“…The three main approaches discussed above are compared in terms of features, complexity, flexibility and maturity in [7] but no numerical analysis is provided. Zhao et al [8] offers the first numerical comparison showing that OpenFlow performs slightly better than GMPLS in large scale multi-domain optical networks.…”

Section: B Controller Performance Benchmarksmentioning

confidence: 99%

“…Recently, SDN is expanding towards optical networks resulting in a growing number of experimental and simulation studies [1][2][3][4][5][6][7][8]. The main focus is on extending the SDN functionalities to address the new challenges that the optical domain poses.…”

Section: Introductionmentioning

confidence: 99%

“…There are very few performance studies of optical SDN and its' OpenFlow implementation, e.g. [7][8][9][10][11][12], and no dimensioning studies in relation to the controller and traffic demand. Furthermore, the challenges raised by the high-bandwidth available in the optical domain or the flow models from current Internet statistics are still to be investigated.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Scalability analysis of SDN-controlled optical ring MAN with hybrid traffic

Veisllari

Stol

Bjornstad

et al. 2014

2014 IEEE International Conference on Communications (ICC)

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The development of software defined networking (SDN) has instigated a growing number of experimental studies which demonstrate the flexibility in network control and management introduced by this technique. Optical networks add new challenges for network designers and operators to successfully dimension and deploy an SDN-based in the optical domain. At present, few performance evaluations and scalability studies that consider the high-bandwidth of the optical domain and the flow characterization from current Internet statistics have been developed. In this paper these parameters are taken as key inputs to study SDN scalability in the optical domain. As a relevant example an optical ring Metropolitan Area Network (MAN) is analyzed with circuit and packet traffic integrated at the wavelength level. The numerical results characterize the limitations in network dimensioning when considering an SDN controller implementation in the presence of different flow mixes. Employing flow aggregation and/or parallel distributed controllers is outlined as potential solution to achieve SDN network scalability.

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Section: A Sdn/openflow For Packet-circuit Switchingmentioning

confidence: 99%

Section: ) Sm Flowsmentioning

confidence: 99%

Section: B Controller Performance Benchmarksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Scalability analysis of SDN-controlled optical ring MAN with hybrid traffic

Veisllari

Stol

Bjornstad

et al. 2014

2014 IEEE International Conference on Communications (ICC)

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Software‐Defined Optical Networks

Chadha¹

2019

Optical WDM Networks

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Design of energy efficient optical networks with software enabled integrated control plane

Wang¹,

Yan²,

Dittmann³

2015

IET Networks

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The growing energy consumption has posed new challenges for the future development of networks. Some earlier work has proposed solutions to improve energy consumption based on the existing control plane, for example, node/links sleeping. This study presents a new possibility to reduce network energy consumption by proposing a new integrated control plane structure utilising Software Defined Networking technologies. The integrated control plane increases the efficiencies of exchanging control information across different network domains, while introducing new possibilities to the routing methods and the control over quality of service (QoS). The structure is defined as an overlay generalised multi-protocol label switching (GMPLS) control model. With the defined structure, the integrated control plane is able to gather information from different domains (i.e. optical core network and the access networks), and enable energy efficiency networking over a wider area. In the case presented, the integrated control plane collects the network energy related information and the QoS requirements of different types of traffic. This information is used to define the specific group of traffic's(flow's) routing behaviours. With the flexibility of the routing structure, results show that the energy efficiency of the network can be improved without compromising the QoS for delay/blocking sensitive services. 1 Introduction The network operations today feature a multi-domain, multi-layer design and management. The control mechanisms are separated horizontally between core, access and home networks, and separated vertically between application, transport and physical layers. These separations lead to high operational/energy cost, low network efficiency and high l a t e n c yi np a t hp r o v i s i o n i n g ,a n dh a v ec r e a t e dd i f ficulties for designing protocols to communicate between different network domains. Particularly, the emergence of high bandwidth or low latency demand applications, that is, high definition television, voice over IP (VOIP), have posed new challenges for bringing down the energy cost while keeping the quality of service (QoS) level. A more unified, intelligent cross domain controlling mechanism is needed to meet these challenges. The Software Defined Networking (SDN [1]) concepts have been considered as new methods to cope with the problems. The concept of SDN technologies are to extract the network control plane from the data plane, while enabling the communications through various interfaces. The programmable SDN control plane provides the flexibility in designing new functionalities and providing new services, which are independent of the underlying physical infrastructure. Designing such an integrated control plane using SDN concepts are discussed in this work. A translucent optical core network is included, together with a Gigabit Passive Optical Network (GPON) structure as the access network part. GMPLS is used as the underlying control mechanism for the optical core network. Optical network u...

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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?

Cited by 10 publications

References 12 publications

Scalability analysis of SDN-controlled optical ring MAN with hybrid traffic

Scalability analysis of SDN-controlled optical ring MAN with hybrid traffic

Software‐Defined Optical Networks

Design of energy efficient optical networks with software enabled integrated control plane

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