Technology Linking Campus Together

1. ISEM 3015Telecommunications and Networking TechnologyLinking Campus Together Group 3 12200743  Vivian, Chan KaKa 12205486  Kami, WanOnKam 12209902  Vanessa, Chow Ying Tung 12210277  Phoebe, CheungHiu Ying 12210498 Andy, Wong Tsun Lam 12211567  Candy, Wong KaHei 12211613 Denis, Chau KwanHang

2. Outline • Whatis Network? • Campusesin HKBU • HSH to Shaw • Shaw to BU Road Univeristy • ShekMun and SCE • TechnologyLinking Campus : • OpticalFiber • MetropolitanAreaNetwork (MAN) • Internet in BU: • HARNET • WiredEthernet • BU WiFi • Security • External network • Internal network • Usageof Network • 1) UIS 2) Moodle 3) Printing quota • 4) Booking Sport venue 5) Booking school facility • 6) Library system • ThePast 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. ShekMun Campus Other Campuses School of Continuing Education

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

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

14. 3. ShekMun SCE (MAN)

15. Connection Diagram

16. C. TechnologyLinking Campus • OpticalFiber • MetropolitanArea Network (MAN)

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

18. Why BU use optical fiber in connection? • thinner and lighter • High speed (light speed) • high bandwidth • Relatively little weaken of signals (low attenuation) • cheap 1) Optical Fiber • Source: Fiber Optic (http://networking.layer-x.com/p070400-1.html)

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

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

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

24. 2) Metropolitan Area Network- 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. Government Regulations • Source: . Government Regulations- OFCA I0004 (12) (http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf)

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) (http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf)

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

27. 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 2) Metropolitan Area Network

28. 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 2) Metropolitan Area Network

29. D. Internet in BU • HARNET • WiredEthernet • BU WiFi

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

32. 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) D. Network within each building of HKBU • Source: HARNET(http://www.jucc.edu.hk/harnet.html)

33. Institutions ATM connections Central HARNET hub • Source: HARNET(http://www.jucc.edu.hk/harnet.html)

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 whichis 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 packetsbetween 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 toAAB building by router. • Connect to HARNET Internet. • Under this process, different building PC are firstconnected by switch and then through the router connect to the Internet.

41. 3) Wi-Fi Smart Phone 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 inHKBU (98%) • - be easy to be hinder by walls - Not appear in some floors (like office)because the staff fears the accesspoint 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) • (http://www.howtogeek.com/167783/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. 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