scholarly journals Models and methods for local area network topology discovery with incomplete data

2021 ◽  
Vol 20 (1) ◽  
pp. 160-180
Author(s):  
Anton Andreev ◽  
Anton Shabaev
Keyword(s):  
Initial Data ◽  
Network Topology ◽  
Incomplete Data ◽  
Computer Network ◽  
Local Area Network ◽  
Real Life ◽  
Local Area ◽  
Area Network ◽  
Link Layer ◽  
Ambiguous Data

A lot of network management tasks require a description of the logical and physical computer network topology. Obtaining such a description in an automatic way is complicated due to the possibility of incompleteness and incorrectness of the initial data on the network structure. This article provides a study on the properties of incomplete initial data on network device connectivity on the link layer. Methods for generalized handling of the heterogeneous input data on the link layer are included. We describe models and methods for deriving a missing part of the data, as well as the condition in which it is possible to get a single correct network topology description. The article includes algorithms for building a link layer topology description from incomplete data when this data is possible to fulfill up to the required level. Also, we provide methods for detecting and resolving an ambiguity in the data and methods for improving incorrect initial data. Tests and evaluations provided in the article demonstrate the applicability and effectiveness of the build methods for discovering various heterogeneous real-life networks. Additionally, we show advantages of the provided methods over the previous analogs: our methods are able to derive up to 99\% data on link layer connectivity in polynomial time; able to provide a correct solution from an ambiguous data.

scholarly journals Models and Methods for Discovery of Local Area Network Topology with Incomplete Data

2021 ◽  
Vol 20 (1) ◽  
pp. 68-93
Author(s):  
Andrey Aleshkin ◽  
Stanislav Balakirev ◽  
Valery Nevzorov ◽  
Pavel Savochkin
Keyword(s):  
Initial Data ◽  
Network Topology ◽  
Incomplete Data ◽  
Computer Network ◽  
Local Area Network ◽  
Real Life ◽  
Local Area ◽  
Area Network ◽  
Link Layer ◽  
Ambiguous Data

A lot of network  management tasks require a description of the logical and physical computer network topology. Obtaining such a description in an automatic way is complicated due to the possibility of incompleteness and incorrectness of the initial data on the network structure. This article provides  a study on the properties of incomplete initial data on network device connectivity on the link layer. Methods for generalized handling of the heterogeneous input data on the link layer are included. We describe models and methods for deriving  a missing part of the data, as well as the condition in which it is possible to get a single correct network topology description. The article includes algorithms for building a link layer topology description from incomplete data when this data is possible to fulfill up to the required level. Also, we provide methods for detecting and resolving an ambiguity in the data and methods for improving incorrect initial data. The tests and evaluations provided in the article demonstrate the applicability and effectiveness of the build methods for discovering  various heterogeneous real-life networks. Additionally,  we show the advantages of the provided methods over the previous analogs: our methods are able to derive up to 99% data on link layer connectivity in polynomial time; able to provide a correct solution from an ambiguous data.

The Design and Research of Virtualization Platform

2013 ◽  
Vol 397-400 ◽  
pp. 2090-2093
Author(s):  
An Hong Tian ◽  
Cheng Biao Fu
Keyword(s):  
Theoretical Analysis ◽  
Network Structure ◽  
Computer Network ◽  
Local Area Network ◽  
Local Area ◽  
Virtual Simulation ◽  
Area Network ◽  
Simulation Tools ◽  
Detail Design ◽  
Packet Tracer

Due to the problem of network structure, security, redundant path in traditional network, this can be solved by Virtual Local Area Network (VLAN) technology. As the network laboratory in colleges and universities is not perfect because of high cost, a virtual simulation tools named Packet Tracer has been introduced to computer network experimental curriculum, this paper put forwards the detail design scheme by the example of VLAN with three switches, and provides the experiment and theoretical analysis and simulation verification .The practice has proved this method not only deepens students comprehension of network, but also cultivates the students' actual comprehensive ability.

Talking Drum: A Local Area Network Music Installation

1999 ◽  
Vol 9 ◽  
pp. 23-28 ◽  
Author(s):  
Chris Brown
Keyword(s):  
Genetic Algorithm ◽  
Time Delays ◽  
Computer Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Performance Space ◽  
Simple Genetic Algorithm ◽  
Musical Concepts ◽  
Network Music

Talking Drum is an interactive computer network music installation designed for the diffusion of cyclically repeating rhythms produced by four electronically synchronized instruments separated by distances up to 50 feet (16 m). The reverberant character of the performance space and the distance-related time-delays between stations combine with the speed and rhythms of the music to create a complex, multifocal mix that audiences explore by moving independently through the installation. The software uses Afro-Cuban musical concepts as a model for creating an interactive drum machine. It implements a simple genetic algorithm to mediate the interaction between pre-composed and improvised rhythms.

Research on Encryption Algorithm Conforming to AES in WLAN

2012 ◽  
Vol 532-533 ◽  
pp. 1517-1521
Author(s):  
Jia Li ◽  
Li Gan ◽  
Fang Fang Du
Keyword(s):  
Wireless Local Area Network ◽  
Computer Network ◽  
Local Area Network ◽  
Transmission Rate ◽  
Local Area ◽  
Encryption Algorithm ◽  
Area Network ◽  
Security Problem ◽  
Aes Encryption Algorithm ◽  
Simple Network

As the daughter of modern wireless communication technology & computer network technology, Wireless Local Area Network(WLAN) is being used widely in many areas. It is well known that WLAN has the advantages such as simple network configuration, high transmission rate, good extensibility and mobility, and convenience to carry, etc. However, its security mechanism is not perfect to guarantee its security because of some design flaws in safety precautions. The application of AES in WLAN improves its data confidentiality. The work presented in this paper focuses on present AES encryption algorithm security problem and optimization of its S Box. The improved algorithm this paper put forward in WLAN, is proved to be efficient.

Research on Security Issues Based on Campus CAN LAN

2014 ◽  
Vol 687-691 ◽  
pp. 1884-1887
Author(s):  
Yu Dong ◽  
Jun Hua Guo
Keyword(s):  
Network Security ◽  
Security Policy ◽  
Computer Network ◽  
Local Area Network ◽  
Rapid Development ◽  
Local Area ◽  
Rapid Expansion ◽  
Area Network ◽  
Campus Network ◽  
Security Issues

With the rapid expansion of the rapid development of computer network technology and network coverage, campus network security issues are increasingly complex and outstanding looks up. In this paper, we have the analysis of the campus CAN security situation, put forward the principle of network security policy-making process to be followed, clearly a number of network security policy are also pointed out to build a more complete network security solution ideas. For the current campus CAN security issues, we discuss the principles and methods of the CAN network design process involved in the security system, and propose specific means for the campus CAN technology features. Meanwhile, we have researched and explored the characteristics and design of school network management, combined with the existence of the campus local area network insecurity, indicated security needs of the campus network, and to developed appropriate the security policy of campus network.

Exploration and Practice for Virtual Local Area Network (VLAN) Technology

2012 ◽  
Vol 241-244 ◽  
pp. 2299-2302
Author(s):  
Lian Feng Zhao
Keyword(s):  
Working Group ◽  
Computer Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Network Technology ◽  
Physical Location ◽  
Actual Application ◽  
Communication Method

VLAN technology refers to the virtual local area network technology, which is classifyd into several network segments in logic through the internal devices of existing LAN, rather than physical location, so as to realize a computer network technology of virtual working group. This paper analyzes and studies on the generation, characteristics, and communication method of VLAN technology, as well as its actual application and setting.

scholarly journals Design, Deployment and Implementation of Local Area Network (LAN) at BAEC Head Quarter

2021 ◽  
Vol 10 (5) ◽  
pp. 15-23
Author(s):  
Osman Goni
Keyword(s):  
Data Storage ◽  
Computer Network ◽  
Data Transfer ◽  
Local Area Network ◽  
Atomic Energy Commission ◽  
Distributed Processing ◽  
Geographical Area ◽  
Local Area ◽  
Area Network ◽  
Security Measures

A local area network (LAN) is a computer network within a small geographical area such as a home, school, computer laboratory, office building or group of buildings. A LAN is composed of interconnected workstations and personal computers which are each capable of accessing and sharing data and devices, such as printers, scanners and data storage devices, anywhere on the LAN. LANs are characterized by higher communication and data transfer rates and the lack of any need for leased communication lines. Communication between remote parties can be achieved through a process called Networking, involving the connection of computers, media and networking devices. When we talk about networks, we need to keep in mind three concepts, distributed processing, network criteria and network structure. The purpose of this Network is to design a Local Area Network (LAN) for a BAEC (Bangladesh Atomic Energy Commission) Head Quarter and implement security measures to protect network resources and system services. To do so, we will deal with the physical and logical design of a LAN. The goal of this Network is to examine of the Local Area Network set up for a BAEC HQ and build a secure LAN system.

scholarly journals Pembagian jaringan komputer menggunakan virtual local area network guna mendukung perpustakaan digital

2020 ◽  
Vol 8 (2) ◽  
pp. 133
Author(s):  
Hero Wintolo ◽  
Amalia Farhati
Keyword(s):  
Digital Library ◽  
Digital Libraries ◽  
Computer Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Network Access ◽  
Network Computer ◽  
Network Equipment ◽  
Library Network

Digital libraries have been widely applied in educational institutions in Indonesia as a complement conventional libraries. The purpose of this research is to know division computer network access at the Adisutjipto Intitute of Technology (STTA) library. The research method used is a qualitative method using Prepare Plan Design Implement Operate and Optimize (PPDIOO). The result research is that people who have internet access will not be able to enter the digital library network. Computer network users who want to access digital libraries must log into the computer network that provides digital books in the library using a Virtual Local Area Network (VLAN). Making this VLAN requires a computer network infrastructure in the form of a Local Area Network (LAN) and computer network equipment in the form of a switch that can be used to configure multiple VLANs in a LAN. Some of the existing services in the library are placed on one VLAN and the digital library is placed on another VLAN. From the test results, it can be seen that between computers that provide services in the library on VLAN 2 cannot communicate via the connecting network to VLAN 1 where the digital library with website based services will be located. This is evidenced by the ping command which generates request time out information. VLANs network in the STTA library have been able to provide support for plans to improve services to members and academicians in the form of a digital library. 

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