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1
Prototyping a Distance
Learning Environment on
Internet
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT,MANUU
2
Introduction
Virtual Networks
Emulated Routers
Goal of Virtual Networks
Implementation
Architecture
Conclusion
Index
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
3
ICT & Distance Education
Information Communication Technology which has became an integral part of every
sphere of life.
Growth of ICT has became very fast in last 2-3 decades.
Distance Education is benefiting a lot
with extensive applications of ICTs.
ICT services for Distance Education:
1. Email
2. Telex
3. Fascimile
4. Bulletin Board systems
5. Teletext
6. Voice systems
7. Voice Message systems
8. Teleconferencing
9. Video conferencing & so on.
All the above services provides theoratical Knowledge or information to the studens
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
4
Differentiating a Theory & Practical is similar to that of
“Separating a White & Yolk of an egg”
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
5
Teaching Practicals
With in an Educational
Institution teaching
practicals often requires
1. Proper Labs & infrastructure
2. Latest Technology
3. H/w & S/w devices
4. Latest Technology
5. Moreover longer blocks of
time
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
6
Implementation of Virtual Exercise Module of
an IP router Configuration
A Virtual Environment refers to the use
of integrated technologies with
communication systems to
provide a form of simulation in
an interactive world.
Features of Virtual Lab:
1. Offers much more robust environment
2. Students can access remotely real network devices
3. Students allowed to make errors
Remote experiments are used in:
1. Nano-science
2. Engineering
3. Computer networks & others
The Experimentation module is not
existing in reality but is simulated
But Simulation should match reality
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
7
Virtual Network
student
Virtual N/w consisting of Emulated
Routers
W/b
Interface
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
8
World Wide Web
Client/server Environment
Consists of:
i. Presentation Services
ii. Presentation Logic
2 Tier Architecture
Preserving state by cookie
Common Gateway Interface
Building 3 Tier or Multi Tier
Architecture
WWW is a Half Duplex
Functionality
he World Wide Web, abbreviated as WWW and commonly known as The Web, is a syst
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
9
Configuration Applet & N/w
Example
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
10
Implementation Architecture
It includes:
1.Client (web browser)
2. Server(Web server)
3. Administrator(Java Program in w/s)
4. Microvar(virtual Routers)
5.
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
11
User Interface
While a student uses Virtual Routers for her configuration
experiments:
She goes through the following steps:
1. Login page
2. Create/change n/w Applet
3. Configuration is loaded
4. Applets allow to create or Delete routers
5. Configuration Applet
6. Test configuration is correct or not
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
12
Client
Applet
Administrator
(java Program) Server
Java Applet
(c)
Administrator Router
Communication b/w Administrator & Applet
TCP Connection establishment & Termination
Request & Response
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
13
Configuration Applet
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
14
Create/Change Network Applet
Select Applet
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
15
Message Exchange between Client,
server & Routers
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT
16
Thank You
Mrs.Afrah Fathima, Asst.Prof
Dept. of CS&IT

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Prototyping a Distance Learning Environment on Internet

  • 1. 1 Prototyping a Distance Learning Environment on Internet Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT,MANUU
  • 2. 2 Introduction Virtual Networks Emulated Routers Goal of Virtual Networks Implementation Architecture Conclusion Index Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 3. 3 ICT & Distance Education Information Communication Technology which has became an integral part of every sphere of life. Growth of ICT has became very fast in last 2-3 decades. Distance Education is benefiting a lot with extensive applications of ICTs. ICT services for Distance Education: 1. Email 2. Telex 3. Fascimile 4. Bulletin Board systems 5. Teletext 6. Voice systems 7. Voice Message systems 8. Teleconferencing 9. Video conferencing & so on. All the above services provides theoratical Knowledge or information to the studens Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 4. 4 Differentiating a Theory & Practical is similar to that of “Separating a White & Yolk of an egg” Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 5. 5 Teaching Practicals With in an Educational Institution teaching practicals often requires 1. Proper Labs & infrastructure 2. Latest Technology 3. H/w & S/w devices 4. Latest Technology 5. Moreover longer blocks of time Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 6. 6 Implementation of Virtual Exercise Module of an IP router Configuration A Virtual Environment refers to the use of integrated technologies with communication systems to provide a form of simulation in an interactive world. Features of Virtual Lab: 1. Offers much more robust environment 2. Students can access remotely real network devices 3. Students allowed to make errors Remote experiments are used in: 1. Nano-science 2. Engineering 3. Computer networks & others The Experimentation module is not existing in reality but is simulated But Simulation should match reality Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 7. 7 Virtual Network student Virtual N/w consisting of Emulated Routers W/b Interface Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 8. 8 World Wide Web Client/server Environment Consists of: i. Presentation Services ii. Presentation Logic 2 Tier Architecture Preserving state by cookie Common Gateway Interface Building 3 Tier or Multi Tier Architecture WWW is a Half Duplex Functionality he World Wide Web, abbreviated as WWW and commonly known as The Web, is a syst Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 9. 9 Configuration Applet & N/w Example Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 10. 10 Implementation Architecture It includes: 1.Client (web browser) 2. Server(Web server) 3. Administrator(Java Program in w/s) 4. Microvar(virtual Routers) 5. Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 11. 11 User Interface While a student uses Virtual Routers for her configuration experiments: She goes through the following steps: 1. Login page 2. Create/change n/w Applet 3. Configuration is loaded 4. Applets allow to create or Delete routers 5. Configuration Applet 6. Test configuration is correct or not Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 12. 12 Client Applet Administrator (java Program) Server Java Applet (c) Administrator Router Communication b/w Administrator & Applet TCP Connection establishment & Termination Request & Response Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 13. 13 Configuration Applet Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 14. 14 Create/Change Network Applet Select Applet Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 15. 15 Message Exchange between Client, server & Routers Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT
  • 16. 16 Thank You Mrs.Afrah Fathima, Asst.Prof Dept. of CS&IT