IP over WDM network traffic engineering approaches

The wide spread deployment of DWDM and reconfigurable optical cross-connect equipment gives rise to a new generation of IP over WDM networks. These network combine gigabit and terabit IP routers with WDM switching and transmission systems to create a more flexible and dynamic network. As these networks grow, there is an urgent need to develop and implement new traffic engineering techniques that can fully harness the flexibility of the re-configurable WDM substrate.