Optical Communications Efficient multi-layer traffic grooming in an IP/MPLS-over-optical network

Traffic grooming in meshed optical networks is an important research topic due to the vast difference between the bandwidth requirements of IP/MPLS traffic demands and the capacity of a wavelength. In this paper, we present, evaluate and compare several traffic grooming strategies for a multi-layer IP/MPLS-over-meshed optical network, which take into account the unidirectional nature of IP. Applying a proper multi-layer grooming algorithm also implicates designing a cost-efficient IP/MPLS topology suited for the offered traffic. This study shows that a very promising traffic grooming strategy is the one that deploys a sophisticated capacity installation algorithm in combination with the idea of charging the IP/MPLS layer for the capacity it consumes in the optical layer. Such an iterative, charging-based approach allows significant savings in the overall network design cost compared to a more simple approach. It also allows gradually installing extra line-systems in the optical network as traffic increases. Copyright © 2005 AEIT.

[1]  Sun-Sik Roh,et al.  Design and Performance Evaluation of Traffic Grooming Algorithms in WDM Multi-Ring Networks , 2004, Photonic Network Communications.

[2]  Didier Colle,et al.  QoS improvement through multi-layer traffic engineering in capacity-constrained intelligent optical networks , 2003 .

[3]  P. Green,et al.  Progress in optical networking , 2001, IEEE Commun. Mag..

[4]  Ori Gerstel,et al.  Cost-effective traffic grooming in WDM rings , 2000, TNET.

[5]  E. Modiano,et al.  Grooming dynamic traffic in unidirectional SONET ring networks , 1999, OFC/IOOC . Technical Digest. Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication.

[6]  Didier Colle,et al.  Influence of the IP Traffic Asymmetry on the Cost of the Optical Network Layer , 2004, Photonic Network Communications.

[7]  Eytan Modiano,et al.  Traffic grooming in WDM networks , 2001, IEEE Commun. Mag..

[8]  Didier Colle,et al.  Multi-layer traffic engineering in data-centric optical networks - illustration of concepts and benefits (IST LION) , 2003 .

[9]  Didier Colle,et al.  Optimization models for cost savings in stacked ring network design. , 2000 .

[10]  Eytan Modiano,et al.  Reducing electronic multiplexing costs in unidirectional SONET/WDM ring networks via efficient traffic grooming , 1998, IEEE GLOBECOM 1998 (Cat. NO. 98CH36250).

[11]  George N. Rouskas,et al.  On optimal traffic grooming in WDM rings , 2002, IEEE J. Sel. Areas Commun..

[12]  Arun K. Somani,et al.  Analysis of optical networks with heterogeneous grooming architectures , 2004, IEEE/ACM Transactions on Networking.

[13]  Ravindra K. Ahuja,et al.  Network Flows: Theory, Algorithms, and Applications , 1993 .

[14]  R. Martinez,et al.  Integrated IP/WDM routing in GMPLS-based optical networks , 2003, IEEE Network.

[15]  Didier Colle,et al.  Pan-European Optical Transport Networks: An Availability-based Comparison , 2004, Photonic Network Communications.

[16]  Marco Ajmone Marsan,et al.  Design of Logical Topologies in Wavelength-Routed IP Networks* , 2002, Photonic Network Communications.

[17]  Didier Colle,et al.  Multi-layer traffic grooming in networks with an IP/MPLS layer on top of a meshed optical layer , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[18]  S. De Maesschalck.  How the Asymmetric Nature of IP Traffic Influences the Cost of the Underlying Optical Layer , 2003 .

[19]  V. R. Konda,et al.  Algorithm for traffic grooming in optical networks to minimize the number of transceivers , 2001, 2001 IEEE Workshop on High Performance Switching and Routing (IEEE Cat. No.01TH8552).

[20]  Biswanath Mukherjee,et al.  Traffic grooming in an optical WDM mesh network , 2002, IEEE J. Sel. Areas Commun..

[21]  Adrian Farrel,et al.  A Lexicography for the Interpretation of Generalized Multiprotocol Label Switching (GMPLS) Terminology within the Context of the ITU-T's Automatically Switched Optical Network (ASON) Architecture , 2006, RFC.

[22]  Eiji Oki,et al.  GMPLS-based photonic multilayer router (Hikari router) architecture: an overview of traffic engineering and signaling technology , 2002, IEEE Commun. Mag..

[23]  A. Dwivedi,et al.  Traffic model for USA long-distance optical network , 2000, Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079).

[24]  George N. Rouskas,et al.  Traffic grooming in WDM networks: past and future , 2002, IEEE Netw..