Iterative Optimization In Vtd To Maximize The Open Capacity Of Wdm Networks

We propose an iterative algorithm for the Virtual Topology Design (VTD) in optical networks. The algorithm eliminates lighter traffic lightpaths and re-arrange the traffic through the remaining lightpaths. This tries to preserve the open capacity for the accommodation of future unknown demands. The results suggest that it is feasible to preserve enough open capacity to avoid blocking of future requests in networks with scarce resources; this is, maximize the traffic scaling. © Springer-Verlag 2004.3124735742Mannie, E., (2003) Generalized Multi-Protocol Label Switching Architecture, , draft-ietf-ccampgmpls-architecture-07, MarchLang, J., Link Management Protocol (LMP), , draft-ietf-ccamp-lmp-10, October 03Architecture for the Automatically Switched Optical Network (ASON), , ITU-T Rec. G.8080/Y.1304(2001) User Network Interface (UNI) 1.0 Signaling Specification, , Optical Networking Forum, OctoberFredette, A., (2003) Link Management Protocol (LMP) for Dense Wavelength Division Multiplexing (DWDM) Optical Line Systems, , draft-ietf-ccamp-lmp-wdm-02, MarchLang, J., Papadimitriou, D., (2003) SONET/SDH Encoding for Link Management Protocol (LMP) Test Messages, , draft-ietf-ccamp-lmp-test-sonet-sdh-03, MayDubuc, M., (2003) Link Management Protocol Management Information Base, , draft-ietfccamp-lmp-mib-07, OctoberAboul-Magd, O., (2003) A Transport Network View to LMP, , draft-aboulmagd-ccamptransport-lmp-01, JuneOperations Application Messages - Language for Operations Application Messages, , Telcordia, GR-831Rising, L., (2001) Design Patterns in Communication Software, , Cambridge University Press, UKGamma, E., (1998) Design Patterns: Elements of Reusable Object-Oriented Software, , Addison-Wesley, HollandLynch, N.A., (1997) Distributed Algorithms, , Morgan Kaufmann Publishers, Inc., CAKompella, K., (2003) Link Bundling in MPLS Traffic Engineering, , draft-ietf-mpls-bundle-04, JanuaryFox, B., Virtual Private Networks Identifier Internet RFC, 2685, p. 99. , SeptemberStevens, W.R., Maximum UDP Datagram Size (1994) TCP/IP Illustrated, 1. , Addison-WesleyJerram, N., Farrel, A., (2001) MPLS in Optical Networks, p. 33. , Data Connection, Enfield, UK, OctoberBanerjee, A., Generalized Multiprotocol Label Switching: An overview of Routing and Management Enhancements (2001) IEEE Communications Magazine, , Januar