Advance reservation frameworks in hybrid IP-WDM networks

New e-Science and grid applications require the coordination of geographically distributed scientific instruments along with data and computing resources. Due to the quality of service requirements of these applications, these distributed resources can be connected by a wavelength-routed optical network, allowing each application to get dedicated bandwidth. These networks are referred to as LambdaGrids. One important service provided in these networks is advance reservation. Applications need to coordinate the use of both grid resources and the network. Advance reservation allows these applications to reserve bandwidth in advance to guarantee availability. In this article, we discuss different networks and frameworks that support advance reservation of bandwidth. We discuss the general architecture of each network and the type of advance reservation services supported.