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Elastic Multi-Layer Resilient IP-over-Flexgrid Networking: Detailed Cost Analysis with Bandwidth-Variable Transponders

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Author

  • Michal Pioro
  • A. Tomaszewski
  • M. Żotkiewicz
  • M. Klinkowski
  • M. Jaworski
  • M. Gunkel

Summary, in English

We introduce a mixed-integer optimization model for two-layer IP-over-Flexgrid networks, and present a cost study performed using the CPLEX package for the introduced model. The study concerns a generic German network with 12 nodes and 20 links in the optical layer, and a set of six IP traffic matrices with increasing demand volumes. The optimization assumes a hot-standby mechanism in the optical layer to make the network resilient to cable cuts. The dominant cost drivers are bandwidth-variable transponders. The numerical results reveal that due to the huge spectral capacity of a single fiber, the spectrum allocation problem simplifies significantly in practice. However, the routing problem minimizing the total cost of employed transponders becomes a challenge, but when appropriately approached and solved, can bring reductions in costs of up to 10%.

Publishing year

2014

Language

English

Publication/Series

[Host publication title missing]

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

16th International Conference on Transparent Optical Networks (ICTON)

Conference date

2014-07-06 - 2014-07-10

Conference place

Graz, Austria

Status

Published