Skip to main content
placeholder image

Restorability versus Efficiency in (1:1)n protection schemes for optical networks

Conference Paper


Abstract


  • As network utilization continues to grow in the coming years, there will be increased pressure on network operators to use traffic engineering to provision resources more efficiently. One way to do this is to allow backup paths associated with disjoint working paths to share bandwidth. Increasing the amount of sharing will naturally increase the risk that a failed working path will either be unrecovered or forced to use dynamic recovery mechanisms. To examine the trade-offs between robustness and efficiency and to develop useful performance bounds, we develop theoretical models for (1:1)n recovery schemes that are independent of the network's topology and management plane. We confirm our results using simulations of uncorrelated failures in a wide-area optical network with various degrees of resource sharing.

Publication Date


  • 2004

Citation


  • Griffith, D., Sriram, K., Lee, S. K., Klink, S., & Golmie, N. (2004). Restorability versus Efficiency in (1:1)n protection schemes for optical networks. In IEEE International Conference on Communications Vol. 3 (pp. 1634-1638).

Scopus Eid


  • 2-s2.0-4143151970

Web Of Science Accession Number


Start Page


  • 1634

End Page


  • 1638

Volume


  • 3

Abstract


  • As network utilization continues to grow in the coming years, there will be increased pressure on network operators to use traffic engineering to provision resources more efficiently. One way to do this is to allow backup paths associated with disjoint working paths to share bandwidth. Increasing the amount of sharing will naturally increase the risk that a failed working path will either be unrecovered or forced to use dynamic recovery mechanisms. To examine the trade-offs between robustness and efficiency and to develop useful performance bounds, we develop theoretical models for (1:1)n recovery schemes that are independent of the network's topology and management plane. We confirm our results using simulations of uncorrelated failures in a wide-area optical network with various degrees of resource sharing.

Publication Date


  • 2004

Citation


  • Griffith, D., Sriram, K., Lee, S. K., Klink, S., & Golmie, N. (2004). Restorability versus Efficiency in (1:1)n protection schemes for optical networks. In IEEE International Conference on Communications Vol. 3 (pp. 1634-1638).

Scopus Eid


  • 2-s2.0-4143151970

Web Of Science Accession Number


Start Page


  • 1634

End Page


  • 1638

Volume


  • 3