Generalized Labels for the Flexi-Grid in Lambda Switch Capable (LSC) Label Switching Routers

Yao, Li; King, Daniel; Zhang, Fatai; Farrel, Adrian

doi:10.17487/rfc7699

Cited by 9 publications

(6 citation statements)

References 2 publications

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“…e fibre had a typical loss of 0.2 dB/km and a dispersion of 17 ps/nm/km at 1550 nm. Based on these impairments affecting the flexible spectrum network, an alloptical performance network method may be achieved for the optimization for known standards [28,29]. is can be used as a real-time performance method to maximize spectral efficiency while maintaining the required quality of service, efficient resource utilization, and bit error rate performance.…”

Section: Optical Fibre Impairments and Transmission Standards In Multmentioning

confidence: 99%

All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links

Dlamini

Isoe

Boiyo

et al. 2019

International Journal of Optics

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In this paper, we experimentally present a novel, all-optical spectral efficient vertical-cavity surface-emitting laser- (VCSEL-) based technique for routing and spectrum assignment in optical networks. Exploiting all optical VCSEL-to-VCSEL injection to attain cross gain modulation, the optical transmitter is optimized for optical transmission paths to assure quality of service by overcoming blockage for differentiated bandwidth demands during network congestion incidences. A 10 Gbps directly modulated 1549 nm master VCSEL is optically injected into the 1549 nm side modes of a 1550 nm slave VCSEL. The Shannon limit is considered for higher transmission rates with the problem decomposed into degraded routing and spectrum assignment and chromatic dispersion in the optical transmission link penalties. In this work, the proposed technique achieved a 1.3 dB penalty for transmission over a 25 km G.655 nonzero dispersion-shifted single-mode optical fibre, a value within the transmission media and optical system characteristics of 3 dB as recommended by the International Telecommunication Union-Telecommunication (ITU-T). The number of transceivers, switches, and optical transmission links in the network was reduced, increasing the number of satisfied bandwidth requests, thus optimizing the spectral resource utilization.

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Section: Optical Fibre Impairments and Transmission Standards In Multmentioning

confidence: 99%

All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links

Dlamini

Isoe

Boiyo

et al. 2019

International Journal of Optics

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“…The encoding of the Flexi-Grid Label is presented in [22]. This label is used to encode the central frequency and the width (i.e., reserved spectrum bandwidth) of the optical channel.…”

Section: ) Label Encodingmentioning

confidence: 99%

Optical Power Control in Translucent Flexible Optical Networks With GMPLS Control Plane

Kanj¹,

Rouzic

Meuric

et al. 2018

J. Opt. Commun. Netw.

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Abstract-The continuously increasing traffic of Internet services (cloud services, video streaming, social networks and recently Internet of things services) is leading to a huge traffic growth in the core optical networks. This traffic evolution is pushing network operators to exploit efficiently their infrastructures in order to postpone, as much as possible, the expensive deployment of new infrastructures. In this respect, the migration from fixed to flex-grid optical networks was triggered in order to efficiently use optical network capacity taking benefits from the improved spectral efficiency of flexible transponders. In our previous work [1], we demonstrated that migrating towards flexible networks while keeping in use existing optical amplifiers will cause power saturation problem over highly loaded links due to the increase in the number of optical channels. To overcome this problem, we proposed in [1] a power adaptation process that consists on converting transmission performance margins into optical power attenuation over optical links. However, the realized work considered only transparent optical network controlled by GMPLS protocol suite. In this paper, we consider the case of translucent optical network where optical regeneration is required and thus the power adaptation process is adapted to such kind of network. New routing algorithm and protocol extensions are proposed to take into account power and regeneration information in the GMPLS control plane of translucent networks.

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“…In the case of a flexible-grid network, the labels that have been requested or allocated as signaled in the RSVP-TE objects are encoded as described in [RFC7699]. This new label encoding can appear in any RSVP-TE object or sub-object that can carry a label.…”

Section: Generalized Labelmentioning

confidence: 99%

“…As noted in Section 4.2 of [RFC7699], the m parameter forms part of the label as well as part of the traffic parameters.…”

Section: Generalized Labelmentioning

confidence: 99%

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RSVP-TE Signaling Extensions in Support of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks

Zhang¹,

Ceccarelli²,

Dios³

et al. 2016

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Generalized Labels for the Flexi-Grid in Lambda Switch Capable (LSC) Label Switching Routers

Cited by 9 publications

References 2 publications

All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links

All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links

Optical Power Control in Translucent Flexible Optical Networks With GMPLS Control Plane

RSVP-TE Signaling Extensions in Support of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks

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