KEYWORDS: Network architectures, Optical networks, Wavelength division multiplexing, Switching, Signal processing, Connectors, Computer programming, Data processing, Signal detection, Tin
The backup paths just SRLG (Shared Risk Link Group)-disjointed with working paths can be concentrated on a specific
link. Thus, the idle resource is not used efficiently so that the resource utilization of the network is not so good. We
propose the resource share backup path provisioning mechanism to guarantee the survivability and to utilize the network
resource. We consider SDLG (Sub-Domain Link Group) as the information to eliminate the link accommodated the
unbalanced sharing backup paths. We compare our mechanism with the existing mechanism, which allocate the backup
path just SRLG-disjointed with working path. We also apply the diversity network plans to the mechanism to select the
backup paths. In addition, to control the backup paths we use GMPLS (Generalized Multi Protocol Label Switching)
according to the consensus, which is emerging in the industry on utilizing an IP-centric control plane within optical
networks to support dynamic provisioning.
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