Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/105069
Title: An efficient mechanism for dynamic multicast traffic grooming in overlay IP/MPLS over WDM networks
Authors: Cheng, Tee Hiang
Yu, Xiaojun
Xiao, Gaoxi
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2014
Source: Yu, X., Xiao, G., & Cheng, T. H. (2014). An efficient mechanism for dynamic multicast traffic grooming in overlay IP/MPLS over WDM networks. Optical Fiber Technology, 20(4), 341-352.
Series/Report no.: Optical fiber technology
Abstract: This paper proposes an efficient overlay multicast provisioning (OMP) mechanism for dynamic multicast traffic grooming in overlay IP/MPLS over WDM networks. To facilitate request provisioning, OMP jointly utilizes a data learning (DL) scheme on the IP/MPLS layer for logical link cost estimation, and a lightpath fragmentation (LPF) based method on the WDM layer for improving resource sharing in grooming process. Extensive simulations are carried out to evaluate the performance of OMP mechanism under different traffic loads, with either limited or unlimited port resources. Simulation results demonstrate that OMP significantly outperforms the existing methods. To evaluate the respective influences of the DL scheme and the LPF method on OMP performance, provisioning mechanisms only utilizing either the IP/MPLS layer DL scheme or the WDM layer LPF method are also devised. Comparison results show that both DL and LPF methods help improve OMP blocking performance, and contribution from the DL scheme is more significant when the fixed routing and first-fit wavelength assignment (RWA) strategy is adopted on the WDM layer. Effects of a few other factors, including definition of connection cost to be reported by the WDM layer to the IP/MPLS layer and WDM-layer routing method, on OMP performance are also evaluated.
URI: https://hdl.handle.net/10356/105069
http://hdl.handle.net/10220/20399
DOI: 10.1016/j.yofte.2014.04.001
Rights: © 2014 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Optical Fiber Technology, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.yofte.2014.04.001].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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