scholarly journals Performance Analysis of Quality of Service in Software-Defined Networking

2019 ◽  
Vol 10 (4) ◽  
pp. 1
Author(s):  
Amir Hossein Moravejosharieh ◽  
Jaime Lloret
Keyword(s):  
Quality Of Service ◽  
Simulation Study ◽  
Software Defined Networking ◽  
Multimedia Traffic ◽  
Network Applications ◽  
Central Controller ◽  
Data Plane ◽  
High Level ◽  
Application Requirements

Software-Defined Networking (SDN) is a new networking strategy designed to overcome issues experienced in traditional IP network e.g. high level of complexity and inability to adaptively respond to newly arisen Quality of Service (QoS) requirements in a timely fashion. In SDN, control plane and data plane are decoupled which justifies the need to have a central controller to receive the application requirements (e.g. Quality of Service requirements) and implements a set of network policies on the data plane to eventually satisfy the requirements of the application. Implementing a proper set of policies on data plane can be quite a challenging task. In many cases implementing a set of policies in order to satisfy the requirements of an application negates requirements of other applications. In this paper, a simulation study is conducted to evaluate the performance of a QoS policy (i.e. reserving bandwidth) on a specific type of multimedia traffic (e.g. video, audio and data) and its influences on other types of multimedia traffic. The outcome of the simulation study has motivated the authors to conduct a mathematical analysis on the sensitivity of network applications over all possible combination of network policies to eventually implement a proper set of policies that imposes minimum destructive impact on other network applications or services.

scholarly journals Enabling Native Coexistence Between ICN and TCP/IP Architectures Over the Same Domain

2020 ◽  
Author(s):  
Eduardo Castilho Rosa ◽  
Flávio De Oliveira Silva
Keyword(s):  
Quality Of Service ◽  
Software Defined Networking ◽  
Network Function Virtualization ◽  
Information Centric Networking ◽  
Network Function ◽  
Data Plane ◽  
Access Link

Information-Centric Networking (ICN) has emerged as an alternative to overcome some issues imposed by TCP/IP architecture, such as the lackof mobility, security, and Quality-of-Service (QoS) native support. Seeing asTCP/IP will not disappear anytime soon, given the size of today’s Internet, mechanisms to coexist multiples ICN architectures along with TCP/IP are neces-sary. Through concepts like Network Function Virtualization (NFV), Software-Defined Networking (SDN) and Data Plane Programmability (DPP), we propose in this paper the FIACS, a system capable of allowing pairs of entitiesto communicate transparently with each other by using its L2 access link andnative protocols stacks over the same underline infrastructure.

scholarly journals Analisis Performansi Routing OSPF menggunakan RYU Controller dan POX Controller pada Software Defined Networking

2021 ◽  
Vol 11 (1) ◽  
pp. 73
Author(s):  
Nanda Iryani ◽  
Afifah Dwi Ramadhani ◽  
Mayang Karmila Sari
Keyword(s):  
Quality Of Service ◽  
Packet Loss ◽  
Software Defined Networking ◽  
Control Plane ◽  
Delay Jitter ◽  
Background Traffic ◽  
Data Plane ◽  
Pox Controller

Software Defined Networking (SDN) adalah teknologi baru yang dikembangkan untuk mengatasi masalah kompleksitas konfigurasi jaringan dengan pengelolaan lebih terpusat karena memisahkan antara control plane dan data plane. Penelitian ini menganalisis perbandingan performansi SDN menggunakan ryu controller dan pox controller. Protocol yang digunakan adalah protocol TCP dan UDP sedangkan routingnya menggunakan OSPF. Penerapan algoritma dijkstra dari perutean OSPF ke topologi fat tree pada SDN akan diukur unjuk kerjanya berdasarkan parameter Quality of Service yaitu delay, jitter, dan packet loss pada skenario tanpa background traffic. Transmisi data menggunakan traffic protocol TCP dengan RYU controller dan protokol UDP lebih baik karena memiliki delay sebesar 49.44% dan delay yang lebih stabil sebesar 0.01 %. Jitter yang dihasilkan adalah 27.59% lebih baik daripada POX controller sebesar 72.41% dan untuk protokol UDP menggunakan POX controller 99.97% sedangkan traffic protocol UDP menggunakan RYU controller lebih baik sebesar 0.03%. Packet loss dari kedua controller didapatkan hasil protokol TCP sangat bagus sebesar 0% sedangkan protokol UDP menggunakan POX controller 83.13%, menggunakan RYU controller 16.87%.

scholarly journals Reliable Multicast Transport for Heterogeneous Mobile IP environment using Cross-Layer Information

2007 ◽  
Vol 3 (3) ◽  
pp. 187
Author(s):  
Ilka Miloucheva
Keyword(s):  
Quality Of Service ◽  
Mobile Ip ◽  
Cross Layer ◽  
Reliable Multicast ◽  
Seamless Handover ◽  
Ieee 802.21 ◽  
Application Requirements ◽  
Application Specific ◽  
Reliable Transport

Reliable multicast transport architecture designed for heterogeneous mobile IP environment using cross-layerinformation for enhanced Quality of Service (QoS) and seamless handover is discussed. In particular, application-specific reliable multicast retransmission schemes are proposed, which are aimed to minimize the protocol overhead taking into account behaviour of mobile receivers (loss of connectivity and handover) and the specific application requirements for reliable delivery (such as carousel, one-to-many download and streaming deliverycombined with recording). The proposed localized retransmission strategies are flexible configured for tree-based multicast transport. Cross layer interactions in order to enhance reliable transport and support seamless handover is discussed considering IEEE 802.21 media independent handover mechanisms. The implementation is based on Linux IPv6 environment. Simulations in ns2 focusing on the benefits of the proposed multicast retransmission schemes for particular application scenarios are presented.

scholarly journals Quality of Service to the Regional Road Transport Service

2016 ◽  
Vol 1 (2) ◽  
pp. 216
Author(s):  
Suela E.Shpuza
Keyword(s):  
Quality Of Service ◽  
Customer Service ◽  
Performance Standards ◽  
Road Transport ◽  
Service Organizations ◽  
Transport Service ◽  
Lack Of Information ◽  
And Performance ◽  
High Level

Performance is measured and done, the quality represents a key element to achieve the performance, especially customer service quality. In response to the pressure of globalization, the market increasingly competitive and volatile market dynamics that, many organizations actively seeking ways to add value to their services and improve their quality of service. Organizations usually tend to make their operations efficient priority. This process begins with the assessment of nevojave customers, their requirements and assessing the performance of domestic human resources in organization and performance depends on the outcome of the estimated earlier. Since this process can proceed in different directions. The causes of these results may be the lack of information and support of high-level management, performance standards unclear, inaccuracies assessors, very large number of forms to be completed and the use of software for the opposite purpose.

scholarly journals IMPACT OF QUEUING DISCIPLINES ON THE PERFORMANCE OF MULTI-CLASS TRAFFIC IN A NETWORK

2021 ◽  
Vol 9 (1) ◽  
pp. 691-697
Author(s):  
N. Sugirtham, R. Sherine Jenny
Keyword(s):  
Quality Of Service ◽  
User Satisfaction ◽  
File Transfer ◽  
Network Resources ◽  
Network Applications ◽  
End To End Delay ◽  
Opinion Score ◽  
Quality Of Service Parameters ◽  
First In First Out

Network applications demand quality of service for enhanced call quality and increased user satisfaction. Hence, implementing queuing discipline at switches and routers in a network will govern the way packets are buffered while waiting for transmission. Queuing disciplines like first-in first-out (FIFO) queuing, priority queuing (PQ), weighted-fair queuing (WFQ), custom queuing and modified weighted round robin are more prominently deployed in network applications. These queuing disciplines help to control and manage network resources by fixing priorities for specific types of data on the network. The paper aims to analyze the quality of service parameters for various real time applications like File transfer protocol(FTP), email, database, Voice over IP(VOIP), video and web browsing,etc., and helps to optimise the use of available network resources. Moreover the quality of the network is compared using different QoS parameters such as end-to-end delay, throughput, jitter and Mean Opinion Score (MOS). This paper focuses on various queuing disciplines with low and high network traffic.

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