scholarly journals Termite inspired algorithm for traffic engineering in hybrid software defined networks

2020 ◽  
Vol 6 ◽  
pp. e283
Author(s):  
R Ananthalakshmi Ammal ◽  
Sajimon PC ◽  
Vinodchandra SS
Keyword(s):  
Network Traffic ◽  
Traffic Engineering ◽  
Test Bed ◽  
Network Resources ◽  
Traffic Scheduling ◽  
Physical Test ◽  
Multi Protocol Label Switching ◽  
Link Availability ◽  
Sdn Controller

In the era of Internet of Things and 5G networks, handling real time network traffic with the required Quality of Services and optimal utilization of network resources is a challenging task. Traffic Engineering provides mechanisms to guide network traffic to improve utilization of network resources and meet requirements of the network Quality of Service (QoS). Traditional networks use IP based and Multi-Protocol Label Switching (MPLS) based Traffic Engineering mechanisms. Software Defined Networking (SDN) have characteristics useful for solving traffic scheduling and management. Currently the traditional networks are not going to be replaced fully by SDN enabled resources and hence traffic engineering solutions for Hybrid IP/SDN setups have to be explored. In this paper we propose a new Termite Inspired Optimization algorithm for dynamic path allocation and better utilization of network links using hybrid SDN setup. The proposed bioinspired algorithm based on Termite behaviour implemented in the SDN Controller supports elastic bandwidth demands from applications, by avoiding congestion, handling traffic priority and link availability. Testing in both simulated and physical test bed demonstrate the performance of the algorithm with the support of SDN. In cases of link failures, the algorithm in the SDN Controller performs failure recovery gracefully. The algorithm also performs very well in congestion avoidance. The SDN based algorithm can be implemented in the existing traditional WAN as a hybrid setup and is a less complex, better alternative to the traditional MPLS Traffic Engineering setup.

scholarly journals Implementation Based Approach to analyze MPLS and Segment Routing Traffic by Using ODL SDN Controller

2021 ◽  
Vol 10 (3) ◽  
pp. 2324-2336
Keyword(s):  
Traffic Engineering ◽  
Traffic Management ◽  
Transmission Control Protocol ◽  
Software Defined Network ◽  
Application Layer ◽  
Multipath Tcp ◽  
Multi Protocol Label Switching ◽  
Comprehensive Comparison ◽  
High Level ◽  
Sdn Controller

Network infrastructure in the data center is getting more complicated due to heavy network traffic, by increasing a network load leads high storage consumption and high deployment cost. We have proposed an effective traffic management mechanism by combining Segment Routing and Multipath Transmission Control Protocol TCP in a logically centralized controller environment. Segment Routing and Multipath TCP is used to define a logically centralized and physically distribution for Software Defined Network SDN. Segment Routing SR technology is used for simplifying Multi-protocol Label Switching MPLS and software- defined network SDN networks. Segment Routing makes it easy to assign a dynamic traffic according to customer’s requirements through the high-level application. This work presents a comprehensive comparison between MPLS and Segment Routing Traffic Engineering, both technologies are implemented in an SDN network environment, based on GNS3 network Emulator as data network Layer, Open-Daylight as SDN Controller, and Python scripts for sending Segment IDs as a part of network Orchestrator in Application Layer.

Comparison of Multipath Schemes for Hybrid Models in MPLS

2008 ◽  
pp. 100-105
Author(s):  
Kyeongja Lee ◽  
Armand Toguyeni ◽  
Ahmed Rahmani
Keyword(s):  
Quality Of Service ◽  
Resource Utilization ◽  
Traffic Engineering ◽  
Qos Routing ◽  
Improve Quality ◽  
Network Resources ◽  
Traffic Distribution ◽  
Congestion Problems

Congestion is derived from insufficient network resources and unbalanced traffic distribution. To treat today’s greedy applications, adding more bandwidth to networks is not the solution for solving the congestion problems in the long term. There are two main approaches to improve quality of service (QoS) of actual network: QoS routing and traffic engineering (Wang, 2001). QoS routing searches the paths by constraint-based routing for better delivery of traffic and is serviced to attract more customers, while traffic engineering aims to reduce congestions and to improve resource utilization through the network by carefully managing the traffic distribution inside a network (Wang, 2001).

scholarly journals Analisa QoS Pada Jaringan MPLS Ipv6 Berbasis Routing OSPF

2021 ◽  
Author(s):  
akuwan saleh
Keyword(s):  
Traffic Engineering ◽  
Multiprotocol Label Switching ◽  
Test Bed ◽  
Label Switching ◽  
Transfer Data ◽  
Multi Protocol Label Switching

Multi Protocol Label Switching (MPLS), merupakan arsitektur jaringan yang didefinisikan oleh IETF untuk memadukan mekanisme label swapping di layer dua dengan routing di layer tiga yang berguna untuk mempercepat pengiriman paket Routing eksplisit memberikan semua keuntungan MPLS, termasuk kemampuan melakukan traffic engineering dan routing kebijakan. Kecepatan transfer data menjadi masalah yang sering dialami dalam jaringan komputer, sehingga diperlukan proses yang cepat untuk mengatasi pengiriman dan pengambilan data tersebut dengan mengutamakan efisiensi waktu, sehingga user tidak perlu membuang banyak waktu. Dengan demikian, dibuatlah sebuah jaringan komputer dengan memanfaatkan teknologi berbasis Multiprotocol Label Switching (MPLS).Jaringan MPLS ini merupakan jaringan yang akan menambahkan label pada setiap paket yang akan dikirimkan, dengan pelabelan ini maka data yang akan dikirimkan akan menjadi lebih cepat sampai pada tujuan. Hal ini dikarenakan router hanya akan menganalisa label yang diberikan pada tiap paket.Pada tugas akhir ini akan menitikberatkan pada pembangunan aplikasi jaringan secara test-bed yangmampu merepresentasikan MPLS pada jaringan IPv6 berbasis OSPF beserta analisis terhadap parameter QoS dari hasil pengukuran. Pada tugas akhir ini menitikberatkan pada pembangunan aplikasi jaringan secara test-bed yang mampu merepresentasikan MPLS pada jaringan IPv6 beserta analisis terhadap parameter QoS. Dari hasil pengukuran didapatkan bahwa jaringan MPLS (Multi Protocol Label Switching) akan bekerja secara optimal apabila terdapat banyak switching dalam sebuah jaringan, selain itu jaringan MPLS akan terasa dampaknya jika pengiriman data dilakukan dalam kapasitas ber-gigabyte.

Research on the Reliability of Box for Gear Test Bed

2011 ◽  
Vol 121-126 ◽  
pp. 1744-1748
Author(s):  
Xiang Yang Jin ◽  
Tie Feng Zhang ◽  
Li Li Zhao ◽  
He Teng Wang ◽  
Xiang Yi Guan
Keyword(s):  
Power Flow ◽  
Dynamic Performance ◽  
Three Dimensional ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Test Bed ◽  
Kinematics Simulation ◽  
Beveloid Gears ◽  
Overall Performance

To determine the efficiency, load-bearing capacity and fatigue life of beveloid gears with intersecting axes, we design a mechanical gear test bed with closed power flow. To test the quality of its structure and predict its overall performance, we establish a three-dimensional solid model for various components based on the design parameters and adopt the technology of virtual prototyping simulation to conduct kinematics simulation on it. Then observe and verify the interactive kinematic situation of each component. Moreover, the finite element method is also utilized to carry out structural mechanics and dynamics analysis on some key components. The results indicate that the test bed can achieve the desired functionality, and the static and dynamic performance of some key components can also satisfy us.

scholarly journals Adaptive Reservation of Network Resources According to Video Classification Scenes

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 1949
Author(s):  
Lukas Sevcik ◽  
Miroslav Voznak
Keyword(s):  
User Satisfaction ◽  
Quality Evaluation ◽  
Spatial Information ◽  
Service Providers ◽  
Video Quality ◽  
Subjective Assessment ◽  
Video Sequences ◽  
Network Resources ◽  
Proposed Model

Video quality evaluation needs a combined approach that includes subjective and objective metrics, testing, and monitoring of the network. This paper deals with the novel approach of mapping quality of service (QoS) to quality of experience (QoE) using QoE metrics to determine user satisfaction limits, and applying QoS tools to provide the minimum QoE expected by users. Our aim was to connect objective estimations of video quality with the subjective estimations. A comprehensive tool for the estimation of the subjective evaluation is proposed. This new idea is based on the evaluation and marking of video sequences using the sentinel flag derived from spatial information (SI) and temporal information (TI) in individual video frames. The authors of this paper created a video database for quality evaluation, and derived SI and TI from each video sequence for classifying the scenes. Video scenes from the database were evaluated by objective and subjective assessment. Based on the results, a new model for prediction of subjective quality is defined and presented in this paper. This quality is predicted using an artificial neural network based on the objective evaluation and the type of video sequences defined by qualitative parameters such as resolution, compression standard, and bitstream. Furthermore, the authors created an optimum mapping function to define the threshold for the variable bitrate setting based on the flag in the video, determining the type of scene in the proposed model. This function allows one to allocate a bitrate dynamically for a particular segment of the scene and maintains the desired quality. Our proposed model can help video service providers with the increasing the comfort of the end users. The variable bitstream ensures consistent video quality and customer satisfaction, while network resources are used effectively. The proposed model can also predict the appropriate bitrate based on the required quality of video sequences, defined using either objective or subjective assessment.

Exploration and Practice about Bilingual Teachers and the Network Resources Construction for Data Structure

2013 ◽  
Vol 694-697 ◽  
pp. 3675-3679
Author(s):  
Yi Xiang ◽  
Jun Peng ◽  
Qian Xiong ◽  
Liang Lei ◽  
Ming Ying You
Keyword(s):  
Data Structure ◽  
Bilingual Teachers ◽  
Network Resources ◽  
Network Teaching ◽  
Qualified Teachers ◽  
Teaching Platform ◽  
Bilingual Teaching ◽  
Resource Library ◽  
Poor Teaching

Targeting at the "Data Structure" bilingual classes with regard to the lack of qualified teachers, a sharp learning curve and the poor teaching effect that are widespread in colleges and universities, this paper gives an analysis in an attempt to find a solution to the issue on quality of teachers, by means of the development of a network teaching platform and a supporting resource library for carrying out high-quality bilingual teaching.

scholarly journals A Secured Load Mitigation and Distribution Scheme for Securing SIP Server

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Vennila Ganesan ◽  
Manikandan MSK
Keyword(s):  
Load Distribution ◽  
Test Bed ◽  
Heavy Load ◽  
Server Selection ◽  
Distribution Scheme ◽  
The Mean ◽  
Sip Server ◽  
Second Tier ◽  
Termination Time

Managing the performance of the Session Initiation Protocol (SIP) server under heavy load conditions is a critical task in a Voice over Internet Protocol (VoIP) network. In this paper, a two-tier model is proposed for the security, load mitigation, and distribution issues of the SIP server. In the first tier, the proposed handler segregates and drops the malicious traffic. The second tier provides a uniform load of distribution, using the least session termination time (LSTT) algorithm. Besides, the mean session termination time is minimized by reducing the waiting time of the SIP messages. Efficiency of the LSTT algorithm is evaluated through the experimental test bed by considering with and without a handler. The experimental results establish that the proposed two-tier model improves the throughput and the CPU utilization. It also reduces the response time and error rate while preserving the quality of multimedia session delivery. This two-tier model provides robust security, dynamic load distribution, appropriate server selection, and session synchronization.

Modernization of the software for measuring the quality of network traffic in the corporate network of the enterprise

2021 ◽  
pp. 104-113
Author(s):  
Е.Е. Истратова ◽  
Е.Н. Антонянц ◽  
А.О. Амельченко
Keyword(s):  
Network Traffic ◽  
Statistical Data ◽  
Client Server ◽  
Network Connection ◽  
Software Product ◽  
Corporate Network ◽  
Server Application

В статье представлены результаты модернизации ранее разработанного клиент-серверного приложения для исследования характеристик корпоративной сети. Результаты проведенных исследований позволили сделать вывод о том, что усовершенствованный программный продукт можно применять для сбора статистических данных о характеристиках сетевого подключения при передаче информации в корпоративной сети компании. The article presents the results of the modernization of a previously developed client-server application for the study of the characteristics of the corporate network. The results of the conducted research allowed us to conclude that the improved software product can be used to collect statistical data on the characteristics of the network connection when transmitting information in the corporate network of the company.

Sign in / Sign up

Export Citation Format

Share Document