Optimization of Computer Network Designs and Promotion of

Transmission Efficiency

Zhao Mingyang

Baoshan University, Baoshan Yunnan, 678000, China

Keywords: Analysis, Computer Network, Optimization Design, Promotion of Transmission Efficiency.

Abstract: The society has entered Internet information age, which connects people everywhere in work and life. With

Internet popularized everywhere, all computer networks, large or small, are undergoing information

communication and transmission. However, many problems still exist in the computer network. After

analyzing factors influencing computer network, safety threats are classified in the work. Meanwhile,

different ways of optimizing computer network are discussed, and technical measures of protecting

computer network are given in the end.

1 INTRODUCTION

With the popularity of electronic information

devices and fast development of computer

technology, Internet users are increasing in great

numbers. And it cannot be mentioned in the breath

when compared with the early time. Nowadays,

most people are enjoying the conveniences brought

by public network. Meanwhile, higher demands are

brought to computer network as people focus more

on the reliability and safety. Therefore, the

optimization of computer network designs and

promotion of transmission efficiency is of great

social significance.

2 FACTORS INFLUENCING THE

CONSTRUCTION OF

COMPUTER NETWORK

2.1 Network Equipment Factors

While constructing computer network, capital is

mainly invested in the network equipment, which is

directly connected with customer-oriented terminals.

Among the various access and switching equipments

that influence network efficiency, the key switching

equipment is connected with the whole network

efficiency. Meanwhile, China is still weak in the

network equipment techniques. Most of the

equipments are bought abroad. China gradually

increases support for the companies that

manufacture network equipments in their innovative

abilities. So the leading places of foreign companies

in the network equipment market may be broken.

With the increased efforts in developing core

devices of Chinese backbone networks, the

necessary network equipments will definitely be

localized.

2.2 Factors of Transfer Switching

Equipments

People can see switchboards most in the lan network

topology diagram of a certain size. The switchboards

are very powerful, as they can both control flow and

check data error. Some even have firewall that

network security devices own and can be used as

routing. The Switchboards account for a large

percent in the network devices. And client is

connected to the computer network through the

access switch. Therefore, the switching equipment is

vital in ensuring the smooth communication of

computer network. The access switch plays the link

role in the network topology and is critical to the

network efficiency.

2.3 Factors of Network Management

Nowadays consumers have more network demands,

and network digital and mechanical devices become

complex. Thus, computer networks are becoming

bigger. Although public network is mainly

maintained by operators, various hidden troubles

still exist due to the limited technology and

300

Mingyang Z.

Optimization of Computer Network Designs and Promotion of Transmission Efﬁciency.

DOI: 10.5220/0006024703000303

In Proceedings of the Information Science and Management Engineering III (ISME 2015), pages 300-303

ISBN: 978-989-758-163-2

incomplete management. The public network system

includes: the physical infrastructures, the host

(server), workstations, routers, switches, access

devices, relationships between nodes and nodes on

the network equipment, and network users

(workstation) management interface. Meanwhile, the

job of network administrators includes the

management of network infrastructures, operating

system, application system as well as users.

2.4 Factors of Network Topology

As an information manager, he should be familiar

with the skeleton of network when he first comes.

The network topology refers to how devices are

connected in the network and shows their

relationships. Thus, the network skeleton can be

seen clearly in the topology. Whether the topology is

scientific and reasonable influences network

efficiency much. The administrator can have

preliminary visual awareness with the general

knowledge of devices and platforms of network

topology in different levels. Thus, the following

network maintenance and troubleshooting will be

convenient.

3 THREATS OF COMPUTER

NETWORK SAFETY

3.1 Threats of Natural Disasters

With the informationization, computer network

extends worldwide, including mountains, plains and

islands. As standards of machine rooms can not be

applied to the arrangements of all computer

networks, the network will be influenced by

environment. The natural disasters will be the main

threats. Therefore, considerations should be given in

advance to avoid natural invasions when conducting

network integration routing.

3.2 Threats of Hacker’s Invasion

Hackers are a group of people obtaining network

information illegally. As the network information

size grows, they cannot be ignored while discussing

network information security.

Hackers are definitely technically stronger than

ordinary netizens. They are a special group,

attacking the Internet in various ways with strong

randomness. Thus, the following consequences

cannot be predicted. As attacks of hackers emerge in

an endless stream, the threats are becoming more

common and unpredictable to the safety of network

system. They are endangering individuals, even the

whole society. There are many famous hackers

worldwide, but they are not all criminals. Mitnick

was ever the most wanted criminal of the America as

he once attacked the computer network of the

pentagon and digital equipment corporation.

Surprisingly, the Apple co-founders Steve Jobs and

Steve Wozinak are also on the list of hackers.

3.3 Threats of Computer Viruses

In fact, computer viruses are codes that endanger

users. They generally parasitize in some programs

and run with the programs. Thus, they influence the

operating system, application platform and

hardware. Viruses mainly attack clients, seldom

endangering network devices. Besides, the codes

reproduce themselves and are transmitted quickly

online. The viruses are hidden, and users always

trigger them accidently without knowing. Thus,

more programs are infected and transmitted online.

Nowadays, the protection software is becoming

more mature, releasing wild list regularly to protect

users. Therefore, users should install software in

their own computers to avoid virus invasion.

3.4 Threats of Trash Mail and Spy

Software

Users generally communicate through e-mails

online. As e-mails carry many kinds of files, many

people engage in illegal acts through them. Some

spy groups transmit videos of illegal political

activities or information not suitable for wide

dissemination in free e-mails to affect users.

Meanwhile, users’ mails may also be supervised and

stolen.

4 WAY TO OPTIMIZE

COMPUTER NETWORK

DESIGN

4.1 Emphasis on Rationality of Fault-

Tolerant Design of Computer

Network

Computer network will definitely make mistakes

while communicating with each other. However, it

can be dealt with by improving the adaptability.

(1) Parallel method is used when building

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network, and dual module hot spare is applied in

general computer network. To protect against

accidents, two network centers are used. Thus, if one

center has faults, the other will work in emergency.

Two centers are applied to ensure the balanced load

of network system.

(2) Interconnecting network devices include:

routers, wan, and data-link. They can reduce the

fault to the minimum level to ensure the least

impacts on computer network.

(3) Selection of sever: sever takes very important

position in the computer network, and many

application platforms rely on severs. If the sever has

high reliability and strong fault tolerance, few

failures will exist.

4.2 Implementation of Redundant

Design of the Dual Network

Now network design should focus on users, and

redundancy is designed to ensure network systems

with double insurance. In general, it takes advantage

of dual- core redundant design in case of need. In

computer networks, dual network redundancy is

designed between layers and between links. Thus, it

ensures the network infrastructure with backup

regardless of where the problem occurs. The

redundant design is generally applied in core

switches and servers in computer network systems.

When problem occurs, links can be open and

application platforms can normally operate.

Therefore, the reliability of computer networks will

be effectively protected.

4.3 Emphasis on the Hierarchy and

Architecture of Computer Network

Now network can be seen in clients, and the services

provided are real. Generally, only the network cable

connected to the client can be seen. However, it is

not a sweeping view of the rest. Network

architecture is built following the idea of the

designer, while cabling designers are not involved

in. The administrator and designer just care about

the network architecture and level, which is

objective but not intuitive. However, the

reasonability of network architecture is associated

with reliability and performance of computer

network. Therefore, attention should be paid to the

network architecture and level design.

4.4 Construction of Computer Network

System with Hierarchical Layout

Anyone with certain knowledge knows computer

network contains four levels: network service layer,

application layer, the network physical hardware

layer and network operating system layer. After the

initial design of the four layers, the improvement of

network system is conducted for the application of

computer network. Network service layer provides

network services, such as online videos and

websites. Network physical hardware layer can be

seen by network designer, such as network topology,

server, core switches, access switches. Network

operating system layer is the multiple versions of

operating system similar to SERVER from

Microsoft. As the computer network is complicated,

the reasonable design will make it reliable,

otherwise it will be unreliable.

5 TECHNICAL PROTECTING

MEASURES TO MAINTAIN

COMPUTER NETWORK

5.1 Firewall Technology

Firewall, a common word in information security

field, adds a layer of protective barriers for the

networks in its image. It is a barrier set to guard

against the threat at cyberspace security edge,

isolating the attacks outside the barrier. Thus, users

will be protected. Small and medium-sized

enterprises network or public network may be

attacked by network safety threats. Installing

firewall to prevent viruses and attacks will increase

the reliability of network information system and

safety of users.

5.2 Access Control Technology

The identification of network information access

will restrict people’s permission to access to

network. Thus, numbers of users are reduced to a

certain extent, which is beneficial to the smooth

operation of network. As there are many ways of

access control, authorized software can be installed

between client and server to allow the permitted

guests to have network access. The access control

technology offers permissions with minimum

principle, allowing users to access in their least

privilege. The network information manager should

assign permissions to each user properly and post

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audit data of system access. Meanwhile, he should

manage the information of all users.

5.3 Network Monitoring and Locking

Control Strategy

The job of network information system managers is

to maintain the network and supervise acts.

Therefore, network stability can be protected. Now

many monitoring platforms have been developed,

some can trace back all the acts in the client and

have data stored in the database. The giant database

information set threshold for network alerting. Thus,

illegal network uses will be selected. Any user

violating the rules will be restricted.

5.4 Devices Attacking Detection System

Firewall technology is one of Internet safety

technologies. However, it is not unbreakable.

Hacking the firewall through bugs is one way of

attacking the Internet. Therefore, the combination of

firewall and invasion detection system as the defense

of network information system will make network

security stronger. In recent years, some high-tech

companies are devoted to the development of

network safety technology. The invasion detection

system produced by them is improved. Meanwhile,

the companies also produce firewall and

vulnerability scanner. Invasion detection system is

equipped in medium and small sized internal

network to record network behaviors. Therefore, the

information of network attacks will be found.

Comprehensive analysis of the recorded information

and summary of attacking sources will be beneficial

to strengthen the prevention of network system.

Invasion detection system protects both inside and

outside, providing a technology for network safety.

Therefore, it is worthy of further development for

network application.

6 CONCLUSIONS

As the society develops rapidly with information

technology, computer network is used more

common, and people rely more on it. The

optimization of computer network to protect the

overall transmission efficiency is the urgent need of

society. With the improvement of computer network

reliability, the more convenient the services

provided by computer networks are, the more

meaningful social life will be.

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Wang Zhaohua, Network wiring Design and Realization

of Intelligent Flexible Campus Computers, Computer

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