Generalized multiprotocol label switching: an overview of routing and management enhancements
IEEE Communications Magazine
IEEE Communications Magazine
IEEE Communications Magazine
A simple dynamic integrated provisioning/protection scheme in IP over WDM networks
IEEE Communications Magazine
Building reliable MPLS networks using a path protection mechanism
IEEE Communications Magazine
Data-centric optical networks and their survivability
IEEE Journal on Selected Areas in Communications
Lightpath restoration in WDM optical networks
IEEE Network: The Magazine of Global Internetworking
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This paper presents an efficient protection scheme to dynamically allocate restorable bandwidth-guaranteed paths in integrated IP-over-wavelength division multiplexing (WDM) networks. A restorable bandwidth-guaranteed path implies an active path and another link-disjoint backup path both with the required bandwidth. In this paper: we propose two integrated-routing algorithms: hop-based integrated-routing algorithm (HIRA) and bandwidth-based integrated-routing algorithm (BIRA) to allocate the paths. We use connection blocking probability and number of optical-electrical-optical (o-e-o) conversions as performance metrics. Through extensive simulation experiments, we demonstrate that our algorithms perform better than other existing approaches.