Modeling WDM Wavelength Switching Systems for Use in GMPLS and Automated Path Computation

Network control planes have made an implicit assumption that the switching devices in a network are symmetric. In wavelength-switched optical networks even the most basic switching element, the reconfigurable add-drop multiplexer, is highly asymmetric. This paper presents a model of optical switchin...

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Bibliographic Details
Published in:Journal of optical communications and networking 2009-06, Vol.1 (1), p.187-195
Main Authors: Bernstein, G.M., Lee, Y., Gavler, A., Martensson, J.
Format: Article
Language:English
Subjects:
Add-drop multiplexers
assignment and routing algorithms
Automatic control
Computer networks
Devices
Encoding
Multiplexing
Multiprotocol label switching
Networks
Optical communication
Optical control
Optical fiber networks
Optical wavelength conversion
Planes
Switching
Switching systems
Switching theory
Wavelength assignment
Wavelength division multiplexing
wavelength routing
Wavelengths
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Summary:Network control planes have made an implicit assumption that the switching devices in a network are symmetric. In wavelength-switched optical networks even the most basic switching element, the reconfigurable add-drop multiplexer, is highly asymmetric. This paper presents a model of optical switching subsystems for use in generalized multiprotocol label switching (GMPLS), route selection, and wavelength assignment. The model covers a large class of switching subsystems without internal wavelength converters. The model is applied to a number of common optical technologies, and a compact encoding for use in the optical control plane is furnished along with a method for deriving a simplified graph representation.
ISSN:1943-0620
1943-0639
1943-0639
DOI:10.1364/JOCN.1.000187