Virtualized Cache Placement in an SDN/NFV Assisted SAND Architecture

Clayman, Stuart; Kalan, Reza Shokri; Sayıt, Müge

doi:10.1109/blackseacom.2018.8433643

Cited by 12 publications

(14 citation statements)

References 13 publications

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“…In recent years, the combination of SDN and NFV are seamlessly integrated into the multimedia delivery architectures. Clayman et al proposed an architecture to support Dynamic Adaptive Streaming over HTTP (DASH) called "Server and Network Assisted DASH" (SAND), utilizing SDN and NFV concepts [4]. For this purpose, they have introduced so-called vDash Aware Network Elements (vDANE), which are virtual web caches that are aware of DASH characteristics, and proposed a placement algorithm for those vDANEs.…”

Section: Related Workmentioning

confidence: 99%

“…NFV offers various services such as storage and computational offloading onto the network using a combination of VNFs, referred to as a Service Function Chain (SFC). SDN and NFV technologies together have proven beneficial to the deployment of conventional Content Delivery Networks (CDN) [4]. Furthermore, SFC components can also be deployed as container-based microservices and managed using a controller based on Kubernetes.…”

Section: Introductionmentioning

confidence: 99%

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A Scalable Hierarchically Distributed Architecture for Next-Generation Applications

et al. 2021

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The rigidity of traditional network architectures, with tightly coupled control and data planes, impairs their ability to adapt to highly dynamic requirements of future application domains. While Software-Defined Networking (SDN) can provide the required dynamism, it suffers from scalability issues. Therefore, efforts have been made to propose alternative decentralized solutions, such as the flat distributed SDN architecture. Such alternatives address the scalability problem for mainly local flows, but are impaired by a substantial increase in the overhead for cross-domain flow setup. To manage the trade-off between scalability and overhead, there is a need for intermediate hierarchical solutions. However, these have not been explored to the complete potential so far. Furthermore, the Network Function Virtualization (NFV) paradigm complements SDN by offering computational and storage services in the form of Virtual Network Functions (VNFs). When integrated seamlessly, both SDN and NFV can offer solutions to the problems posed by highly dynamic application domains. Hence, this work proposes a scalable hierarchical SDN control plane architecture for SDN/NFV-based next-generation application domains such as immersive media delivery system. We have implemented the proposed architecture based on the well-known state-of-the-art ZeroSDN controller. To evaluate the performance of the architecture, we have implemented an on-demand immersive media (point cloud) streaming application and varied the load on the control plane using the background traffic. To benchmark our solution, we have evaluated its performance in comparison with the centralized and flat distributed architectures. We show that the proposed architecture performs better than the rest in terms of scalability, lost flows, and processing latency. Our study shows that the proposed architecture when distributed to three controllers, accepts 23% more flows with almost 70% reduced processing latency compared to the state-of-the-art ONOS controller.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Scalable Hierarchically Distributed Architecture for Next-Generation Applications

et al. 2021

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“…In [20] we introduced vDANE concept as a NFV function and proposed a solution for deployment additional virtual caches in term of vDANE. In [4], we leveraged SAND characteristic and proposed a solution to the problem of selecting the location of the initial vDANE.…”

Section: B Utilizing Nfv and Sdn In Caching For Adaptive Video Streamentioning

confidence: 99%

“…If the number of the connected client to the network increases and the average quality in terms of bitrate received by the clients is under the quality threshold, the controller then decides to deploy additional vDANE. Installing additional vDANE has been discussed in our previous work [20], we mainly focus on vCache migration affects on QoE.…”

Section: Deploying Vdanes In Sand Based Architecture a General mentioning

confidence: 99%

Multimedia Service Management with Virtualized Cache Migration

Kalan

Sayıt

Clayman

2020

2020 23rd Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN)

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The demand for playing the video with the highest quality possible leads video streaming companies to utilize network-based solutions and server assistance. As being one of the popular technology in video streaming area, HTTP adaptive video streaming systems can benefit from the emerging network technologies such as SDN and NFV. Such multimedia systems require the management of network resources efficiently to be able to provide acceptable service. In this paper, we propose a multimedia service management architecture that focuses on migration one of the most crucial components of such systems, virtualized caches. SDN controller gathers underlay network statistics and based on real-time network condition determines the optimal location for virtual cache and/or migrate it when network conditions change. We focus on hand-off affects the perceptual quality when clients migrate from one cache to another. The proposed approach was evaluated using the Mininet Emulator and its performance was given comparatively. The performance results show that the combination of SAND (Server and Network Assisted DASH) features with the advantage of the NFV-SDN technology can provide good service to its users.

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“…Furthermore, the authoritative servers are attached to the switches; thus, DIFANE uses an in-band communication model [28]. ii For a Server and Network Assisted DASH (SAND) architecture used for the video streaming applications, the authors in [29] combine both SDN and NFV (Network Functions Virtualization) technologies by creating virtualized caches using NFV hosted by the servers connected to the switches. The authors deploy the virtualized caches in the network by considering the number of online requesting hosts (clients), bandwidth of the paths, and the locations in the network.…”

Section: Introductionmentioning

confidence: 99%

Cache Servers Placement Based on Important Switches for SDN-Based ICN

et al. 2019

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In centralized cache management for SDN-based ICN, it is an optimization problem to compute the location of cache servers and takes a longer time. We solve this problem by proposing to use singular-value-decomposition (SVD) and QR-factorization with column pivoting methods of linear algebra as follows. The traffic matrix of the network is lower-rank. Therefore, we compute the most important switches in the network by using SVD and QR-factorization with column pivoting methods. By using real network traces, the results show that our proposed approach reduces the computation time significantly, and also decreases the traffic overhead and energy consumption as compared to the existing approach.

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Virtualized Cache Placement in an SDN/NFV Assisted SAND Architecture

Cited by 12 publications

References 13 publications

A Scalable Hierarchically Distributed Architecture for Next-Generation Applications

A Scalable Hierarchically Distributed Architecture for Next-Generation Applications

Multimedia Service Management with Virtualized Cache Migration

Cache Servers Placement Based on Important Switches for SDN-Based ICN

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