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

fYear

2012

fDate

20-22 June 2012

Firstpage

1

Lastpage

6

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/NOC.2012.6249955

Filename

6249955