Toward a parametric approach for modeling local area network performance

1982 ◽  
Vol 11 (2) ◽  
pp. 17-28 ◽  
Author(s):  
Peter S. Mager
Keyword(s):  
Network Performance ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Parametric Approach

scholarly journals Performance Analysis of Wireless Local Area Network for a High-/Low-Priority Traffic Ratio at Different Numbers of Access Categories

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 693
Author(s):  
Kvitoslava Obelovska ◽  
Olga Panova ◽  
Vincent Karovič
Keyword(s):  
Network Performance ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Large Network ◽  
Medium Access ◽  
Massive Growth ◽  
Adaptive Adjustment ◽  
The Impact

The performance of Wireless Local Area Network (WLAN) is highly dependent on the processes that are implemented in the Medium Access Control (MAC) sublayer regulated by the IEEE 802.11 standard. In turn, various parameters affect the performance of the MAC sublayer, the most important of which is the number of stations in the network and the offered load. With the massive growth of multimedia traffic, research of the network performance depending on traffic types is relevant. In this paper, we present the impact of a high-/low-priority traffic ratio on WLAN performance with different numbers of access categories. The simulation results show different impact of high-/low-priority traffic ratio on the performance of the MAC sublayer of wireless LANs depending on different network-sizes and on network conditions. Performance of the large network with two access categories and with the prevalent high-priority traffic is significantly higher than in the case of using four categories on the MAC sublayer. This allows us to conclude that the performance improvement of the large network with the prevalent high-priority traffic can be achieved by an adaptive adjustment of the access categories number on the MAC sublayer.

scholarly journals Network Performance Through Virtual Local Area Network (VLAN) Implementation & Enforcement On Network Security For Enterprise

2021 ◽  
Vol 12 (06) ◽  
pp. 4750-4762
Author(s):  
Yakubu Ajiji Makeri ◽  
Giuseppe T. Cirella ◽  
Francisco Javier Galas ◽  
Hamid Mohsin Jadah ◽  
Adetayo Olaniyi Adeniran
Keyword(s):  
Network Security ◽  
Network Performance ◽  
Local Area Network ◽  
Local Area ◽  
Area Network

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.  

scholarly journals Performance evaluation of WLAN in enterprise WAN with real-time applications based on OPNET modeler

2021 ◽  
Vol 21 (2) ◽  
pp. 911
Author(s):  
Mohammed Ghadhban Al-Hamiri ◽  
Haider J. Abd ◽  
Hanaa M. Al Abboodi
Keyword(s):  
Response Time ◽  
Network Performance ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
File Transfer ◽  
Hybrid Star ◽  
Hybrid Ring

<p><span>Wireless local area networks (WLAN) has been used recently due to their benefits which exhibits outstanding mobility with easier and faster configurations. The wireless local area network performance is much influenced by both network topology and hardware specifications and thus will impact the quality of service (QoS) parameters which are delay, load, and response time. This works estimated the performance of WLAN in enterprise WAN based on the OPNET modeler. Three scenarios have been suggested which are FDDI scenario, FDDI Hybrid Star scenario, and FDDI hybrid ring scenario involving web browsing (HTTP) and file transfer protocol (FTP). Hardware objects and software configurations kept the same for all proposed scenarios. Different types of links and topologies have been applied among WLAN subnets as well as the involved gateway has been changed to measure parameters of quality of services (QoS) for all scenarios used. The findings confirmed that the FDDI Hybrid Ring scenario presents better performance than the FDDI Hybrid Star Scenario and FDDI scenario in terms of WLAN delay, WLAN load, FTP download response time, and HTTP object response time.</span></p>

scholarly journals Jurnal Jaringan Analisis dan Pengembangan Virtual Local Area Network

2020 ◽  
Vol 2 (2) ◽  
pp. 61-66
Author(s):  
Yulia Dwi Noviani
Keyword(s):  
Network Performance ◽  
Local Area Network ◽  
Local Area ◽  
The Internet ◽  
Area Network ◽  
Network Infrastructure ◽  
Laboratory Environment ◽  
Internet Users ◽  
Minimize Costs

Along with the development of technology, especially computers and the internet, we can get information more easily. This also encourages the number of computer and internet users to grow. Especially in the SMK ASY-SYARIFIY IBS PANDANWANGI, the number of students and employees who use the internet is increasing from time to time. The increase in users using the network will cause the existing network infrastructure to be further improved so as not to disappoint users due to decreased network performance. VLAN is a technology that allows a LAN to be divided into several different domains. VLANs also allow the joining of networks that are separate locations, but seem to be located in the same domain. Research on the use of VLANs in the laboratory environment of SMK ASY-SYARIFY IBS PANDANWANGI provides results that VLAN is can improve network performance, share networks based on certain conditions, simplify management, minimize costs, and apply security methods.

MIPS and BIPS are Megaflops: Limits of Unidimensional Assessments

1989 ◽  
Vol 33 (10) ◽  
pp. 597-601
Author(s):  
William W. Banks ◽  
Michael Pihlman
Keyword(s):  
Network Performance ◽  
Local Area Network ◽  
Local Area ◽  
Performance Measure ◽  
Error Rates ◽  
Small Sample ◽  
Area Network ◽  
Sample Sizes ◽  
Network Systems ◽  
Two Systems

We believe that a failure to incorporate human performance measures into system test protocols will result in imprecise and incomplete data when attempting to estimate field test performance from a total systems perspective. Traditional methods of evaluating local area network performance generally refer to the network's throughput, time delays, data rate (BIPS), or media access protocol efficiency. These measures are quite acceptable when determining point-to-point benchmark network performance but do not take into account the more global man-machine performance issues associated with people using network systems to perform tasks and execute functions concurrently within a “total systems” context. This paper experimentally compares differences in human productivity/efficiency while using: 1) an existing data gathering system consisting of several geographically distributed, unconnected, and disparate mainframes; and 2) a prototype Intelligent Gateway (Local Area Network) connecting mainframes and offering the user less complexify in procedure execution and an easy to use interface. Tests were conducted with volunteer users in a repeated measures experimental design. Each test subject was randomly assigned to each of two conditions and required to execute routine tasks with each of two systems. ANOVA results revealed significant differences in task completion times and human error rates between the two systems. An increase in human productivity/efficiency was observed using the gateway LAN. We propose to extend the traditional computer performance measurement (monitoring) boundaries, which now encompass only the network hardware, to include an overall “input-to-output” local area network performance measure, combining both measures of user productivity and network performance. A discussion of trade-offs between unidimensional assessment methods using large sample sizes and multiple methods with small sample sizes is also presented. We further believe that without the addition of specific behavioral measures, MIPS and BIPS are truly Megaflops.

Study on Evaluation and Computer Simulation Methods of Network Performance

2013 ◽  
Vol 846-847 ◽  
pp. 1427-1430
Author(s):  
Li Ling Cheng ◽  
Jun Tan
Keyword(s):  
Computer Simulation ◽  
Network Performance ◽  
Local Area Network ◽  
Simulation Method ◽  
Local Area ◽  
Network System ◽  
Area Network ◽  
Simulation Methods ◽  
Analysis Method ◽  
General Method

The methods of the evaluation of network performance include analysis method, numerical method and simulation method. And the simulation method is the main way to analyze the performance of network system. The paper discusses the general method of the analysis on the performance of network and the simulation method of the analysis on local area network.

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