Title :
Performance of elastic and mixed-line-rate scenarios for a real IP over DWDM network with more than 1000 nodes [invited]
Author :
Klekamp, Axel ; Gebhard, U.
Author_Institution :
Alcatel-Lucent Bell Labs., Stuttgart, Germany
Abstract :
A real network with 1113 physical nodes and 1 + 1 protection is evaluated by varying the fraction of core/metro nodes to find the optimum network size regarding cost and power efficiency of elastic in comparison to mixed-line-rate (MLR) IP over dense wavelength-division multiplex networks. No significant benefit for any of the network concepts can be deduced, neither for a hierarchical/flat nor for a MLR/elastic network concept. On the other hand, the results confirmed that the use of the flex grid is beneficial for both MLR and elastic network scenarios.
Keywords :
IP networks; wavelength division multiplexing; DWDM Network; MLR; core-metro fraction node; elastic network scenario; mixed-line-rate scenario; optimum network size; physical node; power efficiency; real IP network; wavelength-division multiplex network; IP networks; Network topology; Optimization; Peer-to-peer computing; Servers; Topology; Wavelength division multiplexing; Elastic networks; Mixed-line-rates; Multilayer networks; Network optimization; OFDM; Optical fiber networks;
Journal_Title :
Optical Communications and Networking, IEEE/OSA Journal of
DOI :
10.1364/JOCN.5.000A28
