The Shared Protection Mechanisms in IP over WDM Networks

摘要

Emerging optical technologies with the rapid growth of the data traffic has made IP over WDM as next generation network infrastructure. Given the wide range of services envisioned for future IP networks, network survivability is a crucial concern. There are many research activities on how to provide resilience in IP over WDM networks, but most of them focus on either optical layer survivability or IP layer survivability. In this paper, we present an integrated protection scheme to protect IP over WDM network. Mainly, we investigate the impact of shared protection mechanisms in IP over WDM networks. The purpose of the shared protection is to improve the network utilization while assuring the reliability attributes that commit to the users' applications. We study shared protection schemes' applications in different network layers, such as optical layer protection, and IP over WDM two-layer protections. Finally, performance evaluations based on simulations are presented.