Overview Statistic: PDF-Downloads (blue) and Frontdoor-Views (gray)
  • search hit 7 of 38
Back to Result List

Dynamic routing at different layers in IP-over-WDM networks -- Maximizing energy savings

Please always quote using this URN: urn:nbn:de:0297-zib-11692
  • We estimate potential energy savings in IP-over-WDM networks achieved by switching off router line cards in low-demand hours. We compare three approaches to react on dynamics in the IP traffic over time, FUFL, DUFL and DUDL. They provide different levels of freedom in adjusting the routing of lightpaths in the WDM layer and the routing of demands in the IP layer. Using MILP models based on three realistic network topologies as well as realistic demands, power, and cost values, we show that already a simple monitoring of the lightpath utilization in order to deactivate empty line cards (FUFL) brings substantial benefits. The most significant savings, however, are achieved by rerouting traffic in the IP layer (DUFL), which allows emptying and deactivating lightpaths together with the corresponding line cards. A sophisticated reoptimization of the virtual topologies and the routing in the optical domain for every demand scenario (DUDL) yields nearly no additional profits in the considered networks. These results are independent of the ratio between the demand and capacity granularities, the time scale and the network topology, and show little dependency on the demand structure.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics - number of accesses to the document
Metadaten
Author:Filip Idzikowski, Sebastian Orlowski, Christian Raack, Hagen Woesner, Adam Wolisz
Document Type:ZIB-Report
Tag:energy efficiency; multi-hour; multi-layer; multi-period; network design; power consumption
MSC-Classification:90-XX OPERATIONS RESEARCH, MATHEMATICAL PROGRAMMING / 90Bxx Operations research and management science / 90B18 Communication networks [See also 68M10, 94A05]
90-XX OPERATIONS RESEARCH, MATHEMATICAL PROGRAMMING / 90Cxx Mathematical programming [See also 49Mxx, 65Kxx] / 90C11 Mixed integer programming
90-XX OPERATIONS RESEARCH, MATHEMATICAL PROGRAMMING / 90Cxx Mathematical programming [See also 49Mxx, 65Kxx] / 90C35 Programming involving graphs or networks [See also 90C27]
Creating Corporation:Zuse Institute Berlin
Contributing Corporation:TKN, TU Berlin, Germany; atesio GmbH, Berlin, Germany
Date of first Publication:2010/05/12
Series (Serial Number):ZIB-Report (10-07)
ISSN:1438-0064
ZIB-Reportnumber:10-07
Accept ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.