Abstract
A capital expenditure model is a key requirement to evaluate multilayer (ML) metro and core network architectures. Based on the Internet protocol/multiprotocol label switching (IP/MPLS), MPLS-transport profile, optical transport network and WDM technology, a detailed capital expenditure model developed by researchers from system vendors and network operators is introduced. Besides current equipment and corresponding prices for the different layers, it also contains predictions for technology evolution and pricing until 2018. We show how to determine the price of an ML node by constructing it from components specified in the cost model. We use the model in a case study where we benchmark the price of an integrated IP/MPLS/WDM solution.
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