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Technology Linking Campus Together Group 3 12200743 Vivian, Chan Ka Ka 12205486 Kami, Wan On Kam 12209902 Vanessa, Chow Ying Tung 12210277 Phoebe, Cheung.

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Presentation on theme: "Technology Linking Campus Together Group 3 12200743 Vivian, Chan Ka Ka 12205486 Kami, Wan On Kam 12209902 Vanessa, Chow Ying Tung 12210277 Phoebe, Cheung."— Presentation transcript:

1 Technology Linking Campus Together Group 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 ISEM 3015 Telecommunications and Networking 1

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

3 3 A. What is Network? Enable communication between computers Support: 1)Access to World Wide Web 2)Shared use of application 3)Storage Server 4)Shared Printer

4 The Connection between the campuses 4

5 Ho Sin Hang Campus Shaw Campus Baptist University Road Campus 5

6 6

7 7 7

8 8

9 9 Shek Mun Campus School of Continuing Education

10 10

11 Fiber 11

12 12

13 Fiber 13

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15 15

16 16 C. Technology Linking Campus 1)Optical Fiber 2)Metropolitan Area Network (MAN)

17 » Use pairs of fibers  carry the data in different direction » 10G Ethernet fiber » 40G Ethernet fiber 17

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

19 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: a.High data transmit capacity b.High quality c.Cost-efficiency 19

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

21 → Can design the network to suit our own need without any restrict from the telecommunication companies 21

22 22

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

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

25 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? 25 Source:. Government Regulations- OFCA I0004 (12) (http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf)http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf

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

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 27

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 28

29 29 D. Internet in BU 1)HARNET 2)Wired Ethernet 3)BU WiFi

30 30

31 Office PC/Printer → Ethernet → Switch Notebook/Smartphone → Wi-Fi → Access Point (AP) Router Router → HARNET → Internet 31

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) 32 Source: HARNET(http://www.jucc.edu.hk/harnet.html)http://www.jucc.edu.hk/harnet.html

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

34 2) Cable connection in HKBU campus 34

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

36 ● 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. 2) Cable connection in HKBU campus 36

37 ● 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 2) Cable connection in HKBU campus 37

38 ● 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.data packetscomputer networksinternetwork 2) Cable connection in HKBU campus 38

39 ● 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. 2) Cable connection in HKBU campus 39

40 40

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

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 42

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

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 44 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/)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 45

46 E. Usage Sharing of Hardware and Software 46

47 E. Usage 1) UIS 2) Moodle 3) Printing quota 4) Booking Sport venue 5) Booking school facility 6) Library system 47

48 1. UIS ● Receive news from HKBU 48

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

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

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

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

53 5. Booking school facility 53

54 6. Library system 54

55 F. Security 1)External network 2)Internal network 55

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

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

58 F. Security 58

59 F. Security 59

60 60 Past ✗ Don’t have BU Bridge ✗ Don’t have own fiber ✗ Government Regulations Rent from HK Office of the Communications Authority (OFCA)

61 -Incident ✗ Some mouse nipped the fibers ✗ The fibers was damaged Use steel wire to surround the fibers to protect 61

62 ∵ 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 62

63 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) (https://drive.google.com/a/life.hkbu.edu.hk/file/d/0B1GRV9urh3gvSk1SVTBBWFNLMzg/edit?usp=sharing) 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


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