Distributed inter-domain lightpath provisioning in the presence of wavelength conversion

Dense wavelength division multiplexing (DWDM) has become the dominant transport layer technology for next-generation backbone networks due to its unprecedented capacity scalability. As a result, there is a pressing need to investigate lightpath provisioning in multi-domain DWDM networks. Although in...

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Bibliographic Details
Published in:Computer communications 2007-12, Vol.30 (18), p.3662-3675
Main Authors: Liu, Q., Ghani, N., Rao, N.S.V., Gumaste, A., Garcia, M.L.
Format: Article
Language:English
Subjects:
Applied sciences
Computer science
control theory
systems
Computer systems and distributed systems. User interface
Exact sciences and technology
GMPLS
Inter-domain DWDM routing
Multi-domain networks
Optical networks
Software
Topology abstraction
Wavelength conversion
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Summary:Dense wavelength division multiplexing (DWDM) has become the dominant transport layer technology for next-generation backbone networks due to its unprecedented capacity scalability. As a result, there is a pressing need to investigate lightpath provisioning in multi-domain DWDM networks. Although inter-domain provisioning has been well-studied for packet/cell-switching networks, the wavelength dimension (along with wavelength conversion) presents many added challenges. To address these concerns, a detailed GMPLS-based hierarchical routing framework for provisioning transparent/translucent/opaque multi-domain DWDM networks is presented. The scheme adapts topology abstraction to hide internal domain state so as to resolve routing scalability and security issues. Specifically a novel full-mesh topology abstraction scheme is developed for full wavelength conversion domains, i.e., to disseminate additional wavelength converter state. Related inter-domain lightpath RWA and signaling schemes are also tabled. Performance analysis results are then presented to demonstrate the effectiveness of the proposed mechanisms along with directions for future research work.
ISSN:0140-3664
1873-703X
DOI:10.1016/j.comcom.2007.07.006