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A unified control plane is necessary to be designed for multi-layer optical networks, especially for IP over WDM networks to improve the performance and efficiency of the entire networks. This paper focuses on the framework of PCE-based unified control plane, and proposes some strategies for different optimization objectives.
In this paper, a resource pre-configuration scheme has been introduced into GMPLS-based multi-granularity optical networks. By pre-configuring the resource of multilayer optical networks, the topology can be reconstructed with the number of direct routes increasing, and the performance of routing and forwarding can be optimized. Numerical results of the simulations show the connection establishing...
Generalized Multi-Protocol Label Switching (GMPLS) based optical networks are viewed as a promising network infrastructure for the next generation network (NGN) development. By pre-configuring the resources of dynamic optical networks, we can reconstruct the physical topology, thus increase the number of direct routes between potentially heavily loaded physical node pairs and optimize the performance...
Architecture of DREAMSCAPE is introduced into optical networks combined with ASON/GMPLS, and a selection scheme is proposed for group engine (GE) and unit engine (UE). Then the cooperation relationship of modules in GE and the verification platform are described.
As an extension of the known light trail and light tree techniques, we explore the most possible general setting of time division multiplexing in circuit switched all optical networks. It will be shown that this technique improves the scalability and adaptability of all-optical networks without the need of expensive techniques like wavelength converters and burst switching or packet switching capable...
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