Routing Protocol Extension for Resilient GMPLS Multi-Domain Networks Articles uri icon

authors

  • MANOLOVA, ANNA VASILEVA
  • RUEPP, SARAH RENÉE
  • ROMERAL ORTEGA, RICARDO
  • RODRÍGUEZ, SERGIO

publication date

  • March 2010

start page

  • 185

end page

  • 195

issue

  • 3

volume

  • 9

International Standard Serial Number (ISSN)

  • 1109-2742

Electronic International Standard Serial Number (EISSN)

  • 2224-2864

abstract

  • This paper evaluates the performance of multi-domain networks under the Generalized Multi-Protocol Label Switching control framework in case of a single inter-domain link failure. We propose and evaluate a routing
    protocol extension for the Border Gateway Protocol, which allows domains
    to obtain two Autonomous System disjoint paths and use them efficiently
    under failure conditions. Three main applications for the protocol
    extension are illustrated: reducing traffic loss on existing connections
    by exploiting pre-selected backup paths derived with our proposal,
    applying multi-domain restoration as survivability mechanism in case of
    single link failure, and employing proper failure notification
    mechanisms for routing of future connection requests under routing
    protocol re-convergence. Via simulations we illustrate the benefits of
    utilizing the proposed routing protocol extension for networks employing
    different resilient mechanisms (both protection and restoration), as
    well as for networks which have not employed any resiliency technique.
    We show the need for differentiated failure handling for improving
    network performance under failure situations. Furthermore, we draw
    parallel between different network parameters and the efficiency of the
    applied notification and survivability strategies in the network.