Title :
Multi-layer restoration in hierarchical IP/MPLS over WSON networks
Author :
Muñoz, F. ; Lopez, V. ; De Dios, O. González ; Fernández-Palacios, J.P.
Author_Institution :
Telefonica I+D, Madrid, Spain
Abstract :
Network operators are migrating to a multi-layer architecture with IP/MPLS equipment and optical nodes. Thanks to the advent of reconfigurable optical equipment and a multilayer control plane, current 1+1 node protection at the IP layer in each location is not required anymore. This work studies the network availability in a national network with current 1+1 protection. To do so, an analytical expression is derived and validated via simulation in a typical operator scenario. With these results, this work concludes that it is possible to reduce the network equipment while maintaining the service availability currently offered to the clients.
Keywords :
IP networks; multiprotocol label switching; IP layer; IP/MPLS equipment; WSON networks; current node protection; hierarchical IP/MPLS; multilayer control plane; multilayer restoration; network operators; optical nodes; reconfigurable optical equipment; service availability; wavelength switched optical network; Availability; High speed optical techniques; IP networks; Markov processes; Multiprotocol label switching; Network topology; Topology; Multi-layer restoration; Multi-layer traffic engineering; Protection mechanisms;
Conference_Titel :
Networks and Optical Communications (NOC), 2012 17th European Conference on
Conference_Location :
Vilanova i la Geltru
Print_ISBN :
978-1-4673-0949-3
Electronic_ISBN :
978-1-4673-0950-9
DOI :
10.1109/NOC.2012.6249955
