The Stanford UltraFlow access: Architecture and hierarchical scheduling

Shen, Thomas Shunrong; Dhaini, Ahmad R.; Yin, Shuang; Detwiler, Benjamin A.; Leenheer, Marc De; Kazovsky, L.G.

doi:10.1109/glocom.2013.6831479

Cited by 1 publication

(2 citation statements)

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“…1. IRSF adds a main function module, namely a service selector, to the UltraFlow resource management framework proposed in [15]. As the core of the function block of IRSF, it processes Flow requests received on the optical IP channel and determines the proportion of the Flow file to be transmitted on the IP channel as a FoIP request using the service selection algorithm.…”

Section: Principles Of Ultraflow Ip Resource Sharingmentioning

confidence: 99%

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IP Resource Sharing Framework in a Dual-Mode UltraFlow Access Network

Shen¹,

Yin²,

Kazovsky³

2015

J. Opt. Commun. Netw.

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In this paper, we propose an Internet Protocol (IP) resource-sharing framework (IRSF) for the UltraFlow access network that provides dual-mode service, i.e., optical IP and Flow, to the end-users. As part of IRSF, the service selector offloads a proportion of a Flow file to the underutilized IP channel, whenever such resource sharing improves Flow service delay. Simulation results indicate a maximum 25% decrease in Flow service delays achieved by IRSF in an UltraFlow access network with a single IP channel. The impact of Flow-over-IP (FoIP) transmission on regular IP traffic is found to be marginal. In the case that wavelength division multiplexing (WDM) is enabled for IP service in the UltraFlow access network, a FoIP-aware wavelength assignment algorithm is proposed to improve the Flow service delay by 25% under heavy Flow traffic. The dependence of γ, a parameter used by IRSF for performance tuning, on various traffic loads and UltraFlow system settings has been studied via extensive simulations. An automatic optimization algorithm is proposed to optimize γ in the presence of time-varying IP traffic. The performance of IRSF has also been experimentally verified on our UltraFlow access testbed.

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Section: Principles Of Ultraflow Ip Resource Sharingmentioning

confidence: 99%

“…The proposed framework can be implemented as an extension to the UltraFlow resource management framework discussed in [15]. Local controllers embedded in the OLT and optical Flow line terminal (OFLT) manage IP and Flow service independently.…”

Section: Implementation Of Irsfmentioning

confidence: 99%