Abstract
Dynamic restoration is one of the basic paradigms for providing survivability capabilities in wavelength-routed WDM networks [1]. Unlike static (or preconfigured) protection, dynamic restoration does not reserve any network resources during network design or connection establishment. Instead, the network must dynamically search for spare network resources available in the network to recover the disrupted network service after a network failure occurs. For this reason, dynamic restoration is more efficient in resource utilization but slower in service recovery than static protection. Fast provisioning of a backup path for each disrupted connection has been a great concern with dynamic restoration.
© 2005 Optical Society of America
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