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This paper evaluates a centralised impairment-aware path restoration approach for GMPLS-controlled transparent optical networks. Experimental results on a 14-node network test-bed show successful QoT compliant path restoration of around 3.6 seconds.
Aiming at better resource utilization, an important requirement of future optical transport networks is the capability to accommodate subwavelength client flows efficiently. This can be put into action thanks to the enhanced traffic engineering (TE) protocols provided within the generalized multiprotocol label switching (GMPLS) standardization. The present paper concentrates on the design and implementation...
This paper deals with the implementation of the ASON/GMPLS CARISMA network, located in the premises of the Optical Communications Group of UPC. It is composed by ROADM remotely controlled by a GMPLS- based control plane. The paper highlights some open issues in the deployment of services-aware intelligent optical networks.
In this paper, the authors present extensions to generalized multiprotocol label switching (GMPLS) link management protocol (LMP), which allow, upon link failures, automatic LMP adjacency recovery in out-of-fiber control plane architectures. An analytical study is derived to quantify the impact of control plane failures on overall network grade of service (GoS). As a result, the most appropriate LMP...
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