scholarly journals Traffic Modeling Using Raw Packet Generator on Corporate Computer Network

2018 ◽  
pp. 1-10
Author(s):  
A. Danladi ◽  
G. P. Vasira
Keyword(s):  
Network Performance ◽  
Pareto Distribution ◽  
Computer Network ◽  
Fractal Dimensions ◽  
Traffic Modeling ◽  
Hurst Index ◽  
Absolute Moment ◽  
Corporate Networks ◽  
Statistical Complexity ◽  
Network Engineering

Fractal dimension is mathematically defined as a ratio of statistical complexity of network traffic; its significant manifestation can affect the network performance. In this work, two models of corporate computer networks have been developed using optimized network engineering tool (OPNET) technology. Raw packet generator (RPG) traffic was imposed on the corporate networks and modeled using H = 0.7 and D = 1.3, under the influence of Pareto distribution. Autocorrelation function and power law were used to confirm the presence of fractal traffic on the networks. Average Hurst index (H) of 50 and 100 workstations were estimated using aggregate of variance, absolute moment, periodogram and R/S methods as 0.627, 0.608 and its corresponding fractal dimensions (D) were obtained as 1.371 and 1.391 respectively. These results obtained mean, there is a manifestation of fractal traffic and delay is minimised on the network.  

scholarly journals GOING PAPERLESS CONCEPT IMPLEMENTATION AT SENIOR HIGH SCHOOL IN BEKASI, INDONESIA

2021 ◽  
Vol 6 (1) ◽  
pp. 14
Author(s):  
Lintang Meida Sofia ◽  
FIya Fauha Umaima ◽  
Bruno Rumyaru
Keyword(s):  
High School ◽  
Digital Literacy ◽  
Computer Network ◽  
Environmental Awareness ◽  
Learning Activities ◽  
Coefficient Of Determination ◽  
Scarce Resources ◽  
Descriptive Research ◽  
Network Engineering ◽  
Quantitative Descriptive

An important reason for the rise of the paperless learning environment is that society is moving towards a green direction. At the same time, the advancement of technology and how people’s consumption of scarce resources affects digital generation and the understanding of the environment in the future have attracted more and more attention. The objective of this study is to investigate how capable, and available the students are at implementing paperless classrooms with substitutes such as the digital mode in learning activities. This quantitative descriptive research uses 108 participants as a sample through a questionnaire to collect the data. The student from Computer Network Engineering major is considered as the most suitable and related to one of the variables, namely digital literacy, where students more often use technology as learning media and solutions for reducing paper usage. The data were analysed using SPSS v 22. The results of this study found that there are significant influences from Environmental Awareness, digital literacy, and habits as factors in students’ readiness to apply this concept. The coefficient of determination shows that the Environmental Awareness (X1), Digital Literacy (X2), and Habit (X3) effected the Student’s Readiness (Y) to Implement Paperless Concept of 41.3%. The rest, 58.7% will be explained by other factors that will not be discussed in this study.

Voice and Video over Gigabit Ethernet and ATM Backbone Networks

2014 ◽  
pp. 174-184
Author(s):  
Nurul I. Sarkar ◽  
Yash Dole
Keyword(s):  
Quality Of Service ◽  
Network Performance ◽  
Performance Metrics ◽  
Asynchronous Transfer Mode ◽  
Atm Networks ◽  
Gigabit Ethernet ◽  
Corporate Networks ◽  
Backbone Networks ◽  
Network Technologies

This chapter aims to report on the performance of voice and video traffic over two popular backbone network technologies, namely Gigabit Ethernet (GbE) and Asynchronous Transfer Mode (ATM). ATM networks are being used by many universities and organizations for their unique characteristics such as scalability and guaranteed Quality of Service (QoS), especially for voice and video applications. Gigabit Ethernet matches ATM functionality by providing higher bandwidth at much lower cost, less complexity, and easier integration into the existing Ethernet technologies. It is useful to be able to compare these two technologies against various network performance metrics to find out which technology performs better for transporting voice and video conferencing. This chapter provides an in-depth performance analysis and comparison of GbE and ATM networks by extensive OPNET-based simulation. The authors measure the Quality of Service (QoS) parameters, such as voice and video throughput, end-to-end delay, and voice jitter. The analysis and simulation results reported in this chapter provide some insights into the performance of GbE and ATM backbone networks. This chapter may help network researchers and engineers in selecting the best technology for the deployment of backbone campus and corporate networks.

TCP/IP Protocol-Based Model for Increasing the Efficiency of Data Transfer in Computer Networks

2013 ◽  
pp. 116-134
Author(s):  
S.N. John ◽  
A.A. Anoprienko ◽  
C.U. Ndujiuba
Keyword(s):  
Simulation Model ◽  
Computer Networks ◽  
Computer Network ◽  
Data Transfer ◽  
Basic Method ◽  
Imitation Model ◽  
Corporate Networks ◽  
Network Applications ◽  
Modern Computer ◽  
Model And Simulation

This chapter provides solutions for increasing the efficiency of data transfer in modern computer network applications and computing network environments based on the TCP/IP protocol suite. In this work, an imitation model and simulation was used as the basic method in the research. A simulation model was developed for designing and analyzing the computer networks based on TCP/IP protocols suite which fully allows the exact features in realizing the protocols and their impact on increasing the efficiency of data transfer in local and corporate networks. The method of increasing efficiency in the performance of computer networks was offered, based on the TCP/IP protocols by perfection of the modes of data transfer in them. This allows an increased efficient usage of computer networks and network applications without additional expenditure on infrastructure of the network. Practically, the results obtained from this research enable significant increase in the performance efficiency of data transfer in the computer networks environment. An example is the “Donetsk National Technical University” network.

scholarly journals PENGEMBANGAN MODUL BAGI SISWA TEKNIK KOMPUTER JARINGAN PADA MATA PELAJARAN PEMROGRAMAN DASAR

2019 ◽  
Vol 7 (2) ◽  
pp. 111
Author(s):  
Rengga Nofrianti ◽  
Muhammad Anwar Anwar
Keyword(s):  
Research And Development ◽  
Engineering Students ◽  
Computer Network ◽  
Average Score ◽  
Learning Material ◽  
Design Development ◽  
Material Development ◽  
Network Engineering ◽  
Addie Model ◽  
Problem Solving Strategy

This study explains how the learning module is developed on basic programming of Computer Network Engineering students. This study aims to determine the validity, practicality, and effectiveness of the basic programming module of Computer Network Engineering class X at SMK N 5 developed by problem solving strategy. This study is Research and Development (R & D) research by 4D modul implementation. The Development of instructional module using ADDIE model which consist of five stages such as Analysis, Design, Development, Implementation and Evaluation. There were three instruments that is used to collect the data in this research like validity questionnaire, practicality questionnaire and and effectiveness sheets. Based on the result carried out, this research has shown that the score for module validity from expert of learning material development is 0,82 and expert of learning media development is 0,77. Then for practicality, based on teacher responses the average score of 87% and 88% for students responses. So instead, it can be concluded that the module on basic programming is effective based on the average scores of experimental class that it was 80, compared by the average score of control class of 72.  Keywords: Module, Basic Programming, Research and Development, ADDIE.

scholarly journals Estimation of the ABW for Mobile Broadband over SDN using SFC-Constrained Shortest Path Algorithm

2019 ◽  
Vol 9 (1) ◽  
pp. 4282-4286
Keyword(s):  
Network Performance ◽  
Computer Network ◽  
Convergence Time ◽  
Software Defined Network ◽  
Bandwidth Utilization ◽  
Mobile Broadband ◽  
Novel Approach ◽  
Shortest Distance ◽  
Wide Range ◽  
Network Transformation

Software-Defined Networking (SDN) is an evolving algorithm which is depended upon the computer network transformation. In SDN, Bandwidth Utilization is a critical aspect to enhance network performance. To obtain the accessible bandwidth for the Mobile Broadband over SDN and in sequence enhance the accessible Mobile Broadband is the main objective. A significant characteristic is ABW (ABW), having a robust influence on a wide range of applications. However, this metric is very complex to estimate using traditional or conventional methodologies. The Traditional Bandwidth Estimation Technique has limited accuracy along with huge convergence time. The Estimation Time cannot be predicted as it depends on the existence of appropriate traffic produced through any thirdparty applications. 50% of Systematic Errors are not uncommon. In order to overcome the above-mentioned issues, in this paper, a novel approach is introduced for the estimation of ABW over SDN using three different scenarios. In which, SFC constraint shortest distance algorithm is employed for solving the classical max-flow issue that occurs in multiple scenarios while evaluating the ABW. The experiment result is carried out using Mininet testbed for network emulation and Floodlight as an SDN controller. Some of the interesting cases are considered, and the ABW is measured for the proposed software-defined network and compared with the existing traditional network and existing software-defined network

scholarly journals Computer Network Simulation of Firewall and VoIP Performance Monitoring

2018 ◽  
Vol 14 (09) ◽  
pp. 4
Author(s):  
Ammar O. Barznji ◽  
Tarik A. Rashid ◽  
Nawzad K. Al-Salihi
Keyword(s):  
Network Performance ◽  
Performance Monitoring ◽  
Computer Network ◽  
Data Transfer ◽  
Global Changes ◽  
Academic Administration ◽  
High Data ◽  
Security Issues ◽  
Simulated Network ◽  
The University

<p class="0abstract">Fast growing in communication technology has influenced global changes and challenges appear in the field of network security issues. Security solutions must be efficient and operate in a way to deal with threats, reject and stop the network intruders and Trojans. The simulated network of Salahaddin university new campus is planned to build on an area of (3000X3000) meter square. The network consists of many main and secondary devices. The network is mainly consisted of one core switch that provides a very high data transfer through connecting all the collected positions by a variety of cable medias to the entire network switches which are installed in each college location. The department of academic administration (presidency) of the university design is similar to the network designed in each college. The mentioned switch obtains the services from a router that isolates the network from the cloud which supports the services of internet to the network. The firewall is connected to the switch that connects the main server and cloud together. This paper focuses on undertaking a simulation to analyze and examine the performance of the whole network when two scenarios are implemented, the first is if firewall devices is used, the second is when firewall is not used, since the project of building Salahaddin University new campus is at the initial stage, therefore, the researchers think that, it is very important to figure out the drawbacks and deadlocks of using firewall upon each branch of the network and overall network performance before the submitting the final networks design that going to be implemented and installed, because this will indicate many differences on the construction, for example, the network panels ways, the cable collecting locations, network channels and many other device fixing things depending on the media types in addition of the demand of future expansion capabilities. The results show that the using or adding of firewall device to the university campus computer network, will improve the overall network performance though increasing the data stream on many network sections and sectors, also better results are obtained.</p>

scholarly journals Multivariable Analysis of Transport Network Seismic Performance: Mexico City

2020 ◽  
Vol 12 (22) ◽  
pp. 9726
Author(s):  
Azucena Román-de la Sancha ◽  
Rodolfo Silva
Keyword(s):  
Mexico City ◽  
Seismic Performance ◽  
Urban Areas ◽  
Network Performance ◽  
Multivariable Analysis ◽  
Performance Measure ◽  
Transport Network ◽  
Traffic Modeling ◽  
Dynamic Traffic ◽  
Traffic Behavior

In densely populated urban areas, predicting the post-earthquake performance of a transport network is a particularly challenging task that requires the integration of modeled structural seismic response, damage scenarios, and resulting traffic behavior. Previous approaches assessing the vulnerability and performance of networks after earthquakes have not succeeded in capturing and estimating the interdependencies between seismic risk parameters and key traffic behavior variables. This paper presents a methodology, based on data analysis and optimization, where the dynamic traffic modeling and probabilistic seismic hazard assessment are coupled, to link and characterize key network performance variables after extreme earthquakes and establish a multivariable seismic performance measure. The methodology is used to study the transport network in the southern part of Mexico City for a set of scenarios. The seismic environment is established through uniform hazard spectra derived for firm soil. Damage to structures is estimated considering site response and using fragility functions. Dynamic traffic modeling is developed to simulate damage-induced road closures and resulting in traffic variations. Post-earthquake network performance is evaluated through data envelopment analyses, obtaining sets of seismic performance boundaries, and seismic performance maps. The methodology offers a quantitative tool with applications in the planning of urban areas that are sustainable and seismic resilient.

Metode PCQ dan Queue Tree untuk Implementasi Manajemen Bandwidth Berbasis Mikrotik

2021 ◽  
Vol 5 (2) ◽  
pp. 407-412
Author(s):  
Febrian Wahyu Christanto ◽  
April Firman Daru ◽  
Arif Kurniawan
Keyword(s):  
Large Scale ◽  
Network Performance ◽  
Computer Network ◽  
Local Area Network ◽  
Internet Access ◽  
Local Area ◽  
Area Network ◽  
Bandwidth Management ◽  
Available Bandwidth ◽  
Internet Networks

Bandwidth problems are the most frequently encountered problems in sharing information traffic or internet access on computer networks. The factor that causes slow internet access is the large number of devices connected to the internet that are not matched by the availability of sufficient bandwidth and the lack of available bandwidth. This can be accommodated with bandwidth management methods. Bandwidth management in Mikotik uses several bandwidth sharing methods such as PCQ (Per Connection Queue), Queue Tree, and HTB (Hierchichal Token Bucket). This research uses 2 (two) bandwidth management methods, namely PCQ and Queue Tree because these methods can divide bandwidth automatically according to the number of active users and are more effective in sharing bandwidth based on Mikrotik. PCQ is a method aimed at optimizing QoS for large-scale internet networks where all queues are the same for all sub-streams, while Queue Tree is a method designed to carry out more complex queuing tasks for network traffic. The purpose of this research is to optimize the limited internet bandwidth so that it can be accessed by all users in the Local Area Network and automate the queue of devices connected to the network according to user needs so as to produce a more stable computer network performance using the network development method, namely NDLC. The results of the tests were carried out 10 times using a bandwidth of 10 Mbps which resulted in an average jitter of 1.64 ms, ping 36.8 ms, 2 Mbps throughput, and 0.1% packet loss so that the QoS of internet access was categorized as satisfactory. It is hoped that from this research the company will be able to save on internet access expenses by maximizing a small bandwidth without having to increase the existing bandwidth.  

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