Experimental Evaluation of Dynamic Resource Orchestration in Multi-layer (Packet over Flexi-Grid Optical) Networks

Fichera, S.; Martini, B.; Martínez, Ricardo; Casellas, Ramon; Muñoz, Raül; Castoldi, P.

doi:10.1007/978-3-030-38085-4_23

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…Till now, a number of popular bandwidth allocation techniques have been implemented on cloud computing networks [25], [26] but not on GMPLS optical networks. In our previous papers, models for blocking probability have been developed [27].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Bandwidth Allocating Algorithms in Generalized Multi Protocol Label Switched Optical Networks to Enhance Quality of Service

Monika

Singh

Wason³

2022

IEEE Access

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Generalized Multi Protocol Label Switched (GMPLS) optical networks increase the network capacity by allowing large number of parallel links between nodes in a network which is the basic requirement in optical communication where hundreds of parallel links may exist between a pair of nodes. It also facilitates switchovers to alternate channels, rapid fault detection, fault isolation and reducing network downtime. In this paper, GMPLS network is proposed with dynamic users. Then the different bandwidth allocating algorithms have been implemented on the proposed GMPLS optical networks. The various algorithms involve Minimum Execution Time (MET) algorithm, Minimum Completion Time (MCT) algorithm and Opportunistic Load Balancing (OLB) algorithm. The considered algorithms are very popular but have not been implemented on GMPLS optical networks in the literature which shows the novelty of the work. The network performance is evaluated for each algorithm and compared with each other. The results reveal that MET reduces the blocking probability < 0.1% and latency < 1ms. This shows that MET gives the best performance among the considered algorithms and enhance the quality of service in terms of blocking probability, latency, makespan and energy consumption in GMPLS optical networks.INDEX TERMS Bandwidth allocation, blocking probability, GMPLS.

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Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Bandwidth Allocating Algorithms in Generalized Multi Protocol Label Switched Optical Networks to Enhance Quality of Service

Monika

Singh

Wason³

2022

IEEE Access

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“…We consider the processing capacity, to which we refer as computational resource, as the only relevant parameter that allows us to differentiate the performance among edge, metro and core DCs. We investigated the combined requests for computational, storage and memory resources in[63],[49] 2. Without loss of generality, it is assumed that the mapping between the required transmission rate and the number of FSs is performed offline and thus the requests are characterized directly in terms of FSs.VOLUME 4, 2016 …”

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confidence: 99%

Resource Orchestration Strategies With Retrials for Latency-Sensitive Network Slicing Over Distributed Telco Clouds

Gharbaoui¹,

Martini

Cecchetti

et al. 2021

IEEE Access

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The new radio technologies (i.e. 5G and beyond) will allow a new generation of innovative services operated by vertical industries (e.g. robotic cloud, autonomous vehicles, etc.) with more stringent QoS requirements, especially in terms of end-to-end latency. Other technological changes, such as Network Function Virtualization (NFV) and Software-Defined Networking (SDN), will bring unique service capabilities to networks by enabling flexible network slicing that can be tailored to the needs of vertical services. However, effective orchestration strategies need to be put in place to offer latency minimization while also maximizing resource utilization for telco providers to address vertical requirements and increase their revenue. Looking at this objective, this paper addresses a latency-sensitive orchestration problem by proposing different strategies for the coordinated selection of virtual resources (network, computational, and storage resources) in distributed DCs while meeting vertical requirements (e.g., bandwidth demand) for network slicing. Three orchestration strategies are presented to minimize latency or the blocking probability through effective resource utilization. To further reduce the slice request blocking, orchestration strategies also encompass a retrial mechanism applied to rejected slice requests. Regarding latency, two components were considered, namely processing and network latency. An extensive set of simulations was carried out over a wide and composite telco cloud infrastructure in which different types of data centers coexist characterized by a different network location, size, and processing capacity. The results compare the behavior of the strategies in addressing latency minimization and service request fulfillment, also considering the impact of the retrial mechanism.

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Experimental Evaluation of Dynamic Resource Orchestration in Multi-layer (Packet over Flexi-Grid Optical) Networks

Cited by 2 publications

References 13 publications

Performance Evaluation of Bandwidth Allocating Algorithms in Generalized Multi Protocol Label Switched Optical Networks to Enhance Quality of Service

Performance Evaluation of Bandwidth Allocating Algorithms in Generalized Multi Protocol Label Switched Optical Networks to Enhance Quality of Service

Resource Orchestration Strategies With Retrials for Latency-Sensitive Network Slicing Over Distributed Telco Clouds

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