1. Technology Linking Campus Together
ISEM 3015 Telecommunications and Networking
Technology Linking Campus Together
Group 3
 Vivian, Chan Ka Ka
 Kami, Wan On Kam
 Vanessa, Chow Ying Tung
 Phoebe, Cheung Hiu Ying
Andy, Wong Tsun Lam
 Candy, Wong Ka Hei
Denis, Chau Kwan Hang

2. Technology Linking Campuses
Outline
Network
Campuses in HKBU
Technology Linking Campuses
Internet in BU
Security
Usage of Network
The Past and Future
What is Network?
Campuses in HKBU
HSH to Shaw
Shaw to BU Road Univeristy
Shek Mun and SCE
Technology Linking Campus :
Optical Fiber
Metropolitan Area Network (MAN)
Internet in BU:
HARNET
Wired Ethernet
BU WiFi
Security
External network
Internal network
Usage of Network
1) UIS 2) Moodle 3) Printing quota
4) Booking Sport venue 5) Booking school facility
6) Library system
The Past and Future

3. A. What is Network? Enable communication between computers Support:
Access to World Wide Web
Shared use of application
Storage Server
Shared Printer

4. The Connection between the campuses

5. B. Three Campuses in HKBU (Kowloon Tong)
Ho Sin Hang Campus
Shaw Campus
Baptist University Road Campus

7. 7

9. Other Campuses
Shek Mun Campus
School of Continuing Education

11. 1. HSH TO SHAW
(BU Bridge)
Fiber

13. 2. SHAW TO BU Road
(AAB Bridge)
Fiber

14. 3. Shek Mun SCE
(MAN)

15. Connection Diagram

16. C. Technology Linking Campus
Optical Fiber
Metropolitan Area Network (MAN)

17. Reliable 1) Optical Fiber Use pairs of fibers
carry the data in different direction
10G Ethernet fiber
40G Ethernet fiber
Reliable

18. 1) Optical Fiber Why BU use optical fiber in connection?
thinner and lighter
High speed (light speed)
high bandwidth
Relatively little weaken of signals (low attenuation)
cheap
Source: Fiber Optic (

19. 1) Optical Fiber 6. Enable Triple Play (三網合一) service
Public Switched Telephone Network (voice), Internet (data) and Cable Television (video) provided in one single access connection
Request:
High data transmit capacity
High quality
Cost-efficiency

20. 1) Optical Fiber In the PAST…. rent from the telecommunication company
Now…
connect the network by ourselves
use the BU Bridge to connect the two campus

21. 1) Optical Fiber
→ Can design the network to suit our own need without any restrict from the telecommunication companies

23. 2) Metropolitan Area Network
Franki centre (SCE) & Shek Mun
Why?
Application for using its own optical fiber
from Office of Communication Authority

24. Government Regulations
2) Metropolitan Area Network-
Government Regulations
Government may consider the followings: 1. The installation method and location of equipment. 2. Make available space in the common parts and the in-building telecommunications system to the operators.
Source: . Government Regulations- OFCA I0004 (12) (

25. 2) Metropolitan Area Network- Government Regulations
3. Can the operators use the existing in-building telecommunications systems?
4. Can the installation comply with code of practice in Hong Kong ?
5. Public space more than 2m from an external wall of one building?
Source: . Government Regulations- OFCA I0004 (12) (

26. 2) Metropolitan Area Network
For HKBU, Not allowed to dig tunnel unless authorized Therefore, Rent the Metropolitan Area Network from telecommunication company.

27. 2) Metropolitan Area Network
Features: 1. Support high-speed disaster recovery system 2. High speed connection 3. capable of supporting ten of millions and hundreds of millions of bits per second

28. 2) Metropolitan Area Network
Why choose MAN? 1.Cover greater distance than LAN 2. High speed,recover quickly from router/switch failure 3. Dynamically allocate more bandwidth on demand

29. D. Internet in BU
HARNET
Wired Ethernet
BU WiFi

31. D. Network within each building of HKBU
Office PC/Printer → Ethernet → Switch
Notebook/Smartphone → Wi-Fi → Access Point (AP)
Router
Router → HARNET → Internet

32. D. Network within each building of HKBU
1) HARNET
The Hong Kong Academic and Research Network
Wide area network links eight tertiary institutions’ campus networks
Managed and operated by the Joint Universities Computer Centre (JUCC)
Source: HARNET(

33. Institutions Central HARNET hub
ATM
connections
Central HARNET
hub
Source: HARNET(

34. 2) Cable connection in HKBU campus

35. 2) Cable connection in HKBU campus
Connect PC and printer by Ethernet on each floor.
Ethernet: a family of computer networking technologies for local area networks (LANs)
There is a LAN on each floor.

36. 2) Cable connection in HKBU campus
The wires are not long enough
In each building, there is a CABLE CLOSET on each floor.
CABLE CLOSET: used to store all the wires connected to computer, Notebook on the same floor
There is a main cable closet which is responsible for connecting the all cable closet on the floor.

37. 2) Cable connection in HKBU campus
Main cable closet from different floors connect to each other.
All the PC and printer in one building are interconnected by switch. It becomes a LAN
Therefor, all the PC and printer in the building are connected

38. 2) Cable connection in HKBU campus
Connection of cable closet from different building will connect to switch.
The switch will then connect to router
Router:a device that forwards data packets between computer networks, creating an overlay internetwork. A router is connected to two or more data lines from different networks.

39. 2) Cable connection in HKBU campus
Each building has a router connect to other bulidings
OPTICAL FIBER is used to transmit data between router and switch and the data transmit between router
All the data from different building will be transmitted to AAB building by router.
Connect to HARNET Internet.
Under this process, different building PC are first connected by switch and then through the router connect to the Internet.

41. 3) Wi-Fi Laptop Wired Networks Smart Phone Tablet Computer
How does Wi-Fi work?
Wired Networks
Laptop
Tablet Computer
Access Point

42. 3) Wi-Fi - Access Point - More than 1,800
- Appear in every floor of buildings in HKBU (98%)
- be easy to be hinder by walls
- Not appear in some floors (like office) because the staff fears the access point will affect their health

43. 3) Wi-Fi •The four types of wifi in HKBU 1. BU-Standard 2. BUSRH-WiFi
3. BU-Web
4. BU-Guest
Encryption

44. 3) Wi-Fi - Encryption  make the content become unreadable
- Wi-Fi Protected Access (WPA/WPA2)
 is a stronger and better version of WEP (Wired Equivalent Privacy)
 fixes all WEP privacy vulnerabilities
Source: HTG Explains: The Difference Between WEP, WPA, and WPA2 Wireless Encryption (and Why It Matters) (

45. Network Sever Web - manage web page (interface) File
- manage every file
Domain controller
- manage login system

46. Sharing of Hardware and Software
E. Usage
Sharing of Hardware and Software

47. E. Usage UIS Moodle Printing quota Booking Sport venue
Booking school facility
Library system

48. 1. UIS
Receive news from HKBU

49. 1. UIS Search course information Pre-registration Timetable
Exam timetable
Hall registration

50. 2. Moodle Teachers upload notes
Students download notes and upload homework
Communication between teachers and students through internal message system

51. 3. Printing quota Library Resident hall Computer room AAB 7/F
 record every printing cost
 store the printing quota

52. Wai Hang Sport Centre SCC SHSH  Synchronise data
4. Booking sport venue
Wai Hang Sport Centre
SCC
SHSH
 Synchronise data

53. 5. Booking school facility

54. 6. Library system

55. F. Security
External network
Internal network

56. F. Security
1) External network
 Easily accessed by non-BU students

57. F. Security 2) Internal network Firewall Verification - login
- Identity the user (User name, password, Student ID card)

58. F. Security

59. F. Security

60. G. The Past and Future Past Don’t have BU Bridge Don’t have own fiber
Government Regulations
Rent from HK Office of the Communications Authority (OFCA)

61. G. The Past and Future -Incident Some mouse nipped the fibers
The fibers was damaged
Use steel wire to surround the fibers to protect

62. G. The Past and Future ∵Demand Increase Future
Provide more fibers for users
Use the better quality fibers
Do not remove the old one because it is very difficult
☆Build up the three tunnels on the ground
between Wai Hang Sports Centre and HSH

63. REFERENCES
Fiber Optics. (n.d.). Retrieved from Triple-Play Network
Government Regulations- OFCA I0004 (12)
Retrieved from
HTG Explains: The Difference Between WEP, WPA, and WPA2 Wireless Encryption (and Why It Matters). (n.d.).
Retrieved from
wireless-encryption-and-why-it-matters/
Interview with HKBU ITO (25/03/2014) (
ITO Wi-Fi Services. (n.d.). Retrieved from
Joint Universities Computer Centre (JUCC). (n.d.). Retrieved from
William S. (1999). Data Communication And Computer Networks 6th Edition. UK: Pearson Education