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Chapter 1 BACKGROUND
AND MOTIVATION
1.1 Introduction
Rapid growth in
Internet usage by existing and new users, and use it on a daily basis has risen
exponentially. Internet use by mobile devices is rapidly increasing and it can
cover a vast geographic area and can easily be applied (Kende , 2012) . The trend like cloud computing, mobile devices
will likely become more reliant on processing performed remotely (Yang, 2012) . Students are using the network to download
music and watch YouTube. Bandwidth consuming applications such as peer-to-peer(P2P) file-sharing programs, Internet phone service,
and online video & gaming are able to clog and slow down corporate
networks, degrading performance. Most of Sri Lankan Universities experienced bottlenecks
of their networks. These bottlenecks caused by bots, malware and Spam. High rates of interrupts from network can
reduce performance. Network performance is a major issue when we had relatively
large users and devices using relatively more resources. Bad network can lead to a whole host of
issues, including a slow network. The other factor was low and limited
bandwidth affecting Internet connectivity than expected. The limitation of
bandwidth was due to the fact that the channel capacities were not enough. By
then, ICT management issues were left in the hands of technicians who had very
little knowledge on bandwidth management such that spam and malware were the
older of the day. Increasing demand placed on networks has made the ubiquitous
approach. The Internet Protocol (IP) space that has been exhaust. There are new
demands for IPs, while new devices tend to connect to the IP networks, such as
smart phones, iPads and notebooks.
Setting up a
computer network for growing environment, scalability is the key factor.
Network scalability is the ability of computer network to grow with needs
change and to handle the amount of traffic that runs on it. Not taking
scalability into account can mean spending more money on infrastructure down
the road.
Users at the
Gampaha Wickramarachchi Ayurveda
Institute (GWAI) is experiencing network performance issues that are severely degrading
the abilities of various disciplines to accomplish scientific and other
research goals in a timely manner. They need to wait at long minutes to get connect to the network or users
may be unable to connect to the network. Current
scenario, the IT facilities and supporting technologies such as wired,
wireless, mobile technologies have evolved and it is commonly available.
Presently, most of student at the GWAI carry a laptop or a tablet or a smart
phone. It is likely the available IPv4
address space at GWAI will run out.
Utilizing
its current network configuration, the GWAI is not able to maximize its
significant investment in network infrastructure. In the face of new demands, GWAI
Local Area Network (LAN) can either increase their capacity or find ways to
connect new devices to the existing LAN.
This
project intends to clear and precise study
and explore the network infrastructures of all
Universities in Sri Lanka and proposed secure solution for GWAI further
improvement.
1.1.1 Objectives:
The general objective of this study
was to assess the network of GWAI. The study attempted to achieve the following
specific objectives.
1.
To critically examine the existing network of
GWAI
2.
To identify the size of the network on choice
3.
To identify the numbers of users and frequency of use of the network
4.
To identify Internet services demanded by the Students & Staff
5.
To explore the current Network Models of Campus networks and its drawbacks
6.
To identify the quality of service of the network
7.
To recommend the suitable model in order to provide secure and easy
accessible network infrastructure.
1.2 Organization and its
context:
1.2.1 Introduction of the
Organization :
GWAI is affiliated to
the University of Kelaniya. It is one of the two University institutes of
Ayurveda education in Sri Lanka. Thus in keeping with its vision, to be the
centre of excellence in Ayurveda education and research in South Asia, the
Institute with a proud history of over 77 years continues in its endeavor to
meet the challenge of maintaining its unique position in the University system.
The Institute has its origin in the well-known Gampaha Sidayurveda Vidyalaya
founded by renowned patriot traditional Ayurveda Physician late Pandit G. P. Wickramarachchi
in 1929, as a centre of learning Siddayurveda tradition of medicine(GWAI, 2012).
It was
established by the Government Notification of Universities Act No. 16 of 1978
with effect from 1st March, 1995, as an autonomous institute to set patterns in
Undergraduate and Postgraduate Ayurveda Medical Education in all its branches
so as to demonstrate a high standard of Ayurveda education. The course leading
to the Degree of Bachelor of Ayurveda
Medicine and Surgery (BAMS) has been in existence since 1998. It mainly follows
a disciplinary structure. However, since inception, GWAI has been constantly
upgrading its course content in tune with the changing needs. Many alterations,
which have taken place during the period of many years, have been reflected in
the present curriculum document.
BAMS degree programme is a professional degree
in the field of Ayurveda Medicine developed as per the guidelines and
benchmarks declared by World Health Organization and University Grants
Commission of Sri Lanka. The curriculum and Syllabus of BAMS degree programme
leads to develop Ayurveda Medical Professionals, who are competent to practice
independently in any setting of the community. The curriculum and syllabus have
been designed not only to acquire necessary knowledge, clinical skills but also
to improve professional attitudes so as to work as a member of healthcare
team. The structure of the curriculum
covers philosophical background of Ayurveda, basic sciences, behavioural
sciences, clinical sciences, community health and medical jurisprudence.
Special attention is given to generate necessary language skills and skills in
information and communication technology which have been identified as prime
requirement for effective learning and practice of Ayurveda. The content of
each course unit has been organized to generate essential knowledge,
understanding, skills and professional attitudes from fundamental theoretical
aspect to practical aspect. BAMS degree programme is fortified with the
introduction of research methodology and basic statistics leading to conduct a
research project with the aim of generating enthusiasm in invention and
development of the Ayurveda.
Norm
reference method of evaluation is followed in assessing the student's
performances instead of criteria reference method. Each component of the
curriculum will be assessed continuously at mid-semester examinations and
end-semester examinations.
All
BAMS undergraduates are expected, at the successful completion of the
programme, to have professional skills to approach indigenous medical practice
with sufficient knowledge of basic principles of Ayurveda, required
intellectual and practical skills in enquiry, clinical reasoning, critical
thinking and decision making in accepted ethical and legal frame. In addition,
the BAMS undergraduates are expected to have standard professional values,
attitudes, behaviour and ethics so as to recognize as qualified Ayurveda
Professionals.
GWAI
consists of five departments; the Department of Ayurveda Basic Principles, the
Department of Dravyaguna Vignana, the Department of Cikitsa, the Department of
Çalya Shälakya and the Department of Kaumärabhåtya. The Department of Ayurveda
Basic Principles conducts courses related to Fundamentals of Ayurveda,
Languages and Information and Communication Technology. Division of Human
Biology offers the courses of basic biological sciences. Department of
Dravyaguna Vignana conducts courses related to the disciplines of
Pharmacognosy, Pharmacology and Pharmacy. Department of Cikitsa primarily
concerns on General Medicine. Department of Çalya Shälakya deals with the
disciplines of Surgery and Department of Kaumärabhåtya and Stree Roga conducts
courses in the disciplines of Paediatrics, Gynaecology and Obstetrics.
The
syllabus and curriculum structured on course unit system, which runs in
academic semesters. The duration of a semester is 15 weeks. A course unit is a
subject module bearing a credit value. A credit is a time based quantitative
measure excluding the independent learning hours used in calculating the grade
point average.
The
Graduate Studies Division (GSD) of the Institute was established with the aim
of providing facilities for postgraduate educ`ation programmes and extensive
education programmes.
GSD
consist of three main divisions; postgraduate and Extensive Education Division,
Research and Publication Division and Information and Communication Technology
Division.
GSD
conducts Masters of Science in Management and Administration of Ayurvedic
Institutions, Postgraduate Diploma in Management and Administration of Ayurveda
Institutions, Certificate Course in Yoga and Relaxation Techniques, Certificate
Course in English Language, Diploma in Ayurveda Pharmaceuticals, Certificate
Course in Kshara sutra, Certificate Course in German Language, Certificate
Course in Computer Literacy, and Certificate Course in Ayurveda Beauty Culture.
GWAI
Language Laboratory consists of multimedia Language Learning System developed
to provide advanced language learning experience based on digital technology.
The Laboratory helps teachers and students to use various audio–visual
multimedia materials during the class and interact with each other easily and
efficiently for building language learning skills.
Central
laboratory is the main laboratory of the institute. This laboratory provides
facilities to conduct practical classes of Physiology and Pathology for BAMS
undergraduate programme. Further, it provides laboratory facilities for the
postgraduate research and clinical investigation services for the public.
Research
and Publication Division (RPD) of the Institute commenced in the year 2004. The
Research and Publication Division organizes and conducts the “Pandit G.P.
Wickramarachchi Memorial Research Symposium” annually with the aim of providing
opportunities to disseminate the research results and to exchange the research
experiences among researchers. The Journal of GWAI is the official journal
published by the Research and Publication Division of the Institute.
GWAI
Library has located in the Pandit G.P. Wickramarachchi Memorial Library
Building. It is being developed as a Higher Educational Library that introduced
with the establishment of the Institute.
The
main objectives of this Library are firstly, to supply the readers library
resources and books on Ayurveda, Indigenous Medicine, Medical Science, Health
Science, Languages, ICT & Computer Science, Buddhist Philosophy & other
related Subjects, secondly, to organize the library services as to disseminate
knowledge, information, entertainment and to develop abilities with
appreciation, and thirdly, to develop the library as a Special Library that is
to be a state of an Ayurveda Research Library & Information Center.
Gampaha
Wickramarachchi Sidhayurveda Medical College was established in 1929 by pundit
G.P Wickramarachchi with the aims of improving Ayurveda Medicine and provided
treatment freely. In 1984 it was upgraded to the hospital and on 27th February,
2008 it was affiliated to the Department of Ayurveda.
At
present this hospital has four wards that can accommodate 120 patients. In
addition there is an out patients department and a pharmacy. This Ayurvedic
Teaching hospital provides Teaching and training facilities to undergraduate
Medical students of the GWAI.
The
Computer Center is located on the second floor of the Multi Purpose building.
This is a common center providing computer facilities and services to Academic
and Non-academic staff of the institute. The center consists of a main
laboratory and is equipped with 100 computers, one file server and other
accessories.
1.3 Identification/Background
of the Issue :
The GWAI currently have only 2 Mbps
Internet connectivity
and one single network. Current network offers the slow
performance in transferring data, sound, video, and graphics
files. The long waiting times for file
downloading directly affects the effectiveness and efficiency of the
teaching/learning process. Students need to wait at long minutes to get connect to the network or students may
be unable to connect to the network. Wireless access to the students who has
notebooks, smart-phones and Tabs disconnected time to time. Learning Management
System (LMS) was introduced to the students and most of students facing issues
like login-in, downloading and uploading assignments. GWAI management need to
implement Wireless local area network (WLAN), email server, Library system and
other Information systems.
While GWAI has single network user
broadcasts will be received by every other user and this take more time to
process data. Broadcasts are caused by viruses, worms and malware, as well as
many legitimate programs.
Network
management has been expected to be a problem for GWAI. The improvement of
sophisticated network
infrastructure are becoming a very important
problem.
1.4 Structure of the Study
The study is
presented in five chapters.
Chapter 01 - Background and
Motivation
This chapter
provides an overview to the study by describing the Background of the study,
research problem, purpose and objective of this research, monitoring network
infrastructure and network requirement analysis.
Chapter 02 - Literature Review
This chapter
includes the survey of the literature related to the variable research i.e. suitable network designs for campus
networks, comparison of network designs, Sri Lankan University network designs
and typical cost for the networks.
Chapter 03 - Methodology
This chapter
describes the Theoretical framework, network design life cycle, conceptual
model, research findings, primary and secondary sources of data, method of data
collection, hypotheses, and data evaluation.
Chapter 04 - Results and
Analysis
This chapter
highlights the profile of users, analysis of ranked data, nonparametric methods
and hypotheses testing.
Chapter 05 - Findings and
Conclusion
This chapter
discusses the findings of the network designs, conclusions based on the
analyzed data and recommendations and further studies.
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