Download - Technology Linking Campus Together
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Technology Linking Campus Together
Group 312200743 Vivian, Chan Ka Ka12205486 Kami, Wan On Kam12209902 Vanessa, Chow Ying Tung12210277 Phoebe, Cheung Hiu Ying12210498 Andy, Wong Tsun Lam12211567 Candy, Wong Ka Hei12211613 Denis, Chau Kwan Hang
ISEM 3015Telecommunications and Networking
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OutlineA. What is Network?B. Campuses in HKBU
1) HSH to Shaw2) Shaw to BU Road Univeristy3) Shek Mun and SCE
C. Technology Linking Campus :1) Optical Fiber2) Metropolitan Area Network (MAN)
D. Internet in BU: 1) HARNET2) Wired Ethernet3) BU WiFi
E. Security1) External network2) Internal network
F. Usage of Network1) UIS 2) Moodle 3) Printing quota4) Booking Sport venue 5) Booking school facility 6) Library system
G. The Past and Future
Network
Campuses in HKBU
Technology Linking
Campuses
Internet in BUSecurit
yUsage
of Networ
kThe Past and
Future
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A. What is Network?
Enable communication between computers
Support:1) Access to World Wide Web2) Shared use of application3) Storage Server4) Shared Printer
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The Connection between the campuses
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B. Three Campuses in HKBU (Kowloon Tong)
Ho Sin Hang Campus Shaw Campus Baptist University Road Campus
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Other Campuses Shek Mun Campus
School of Continuing Education
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1. HSH TO SHAW(BU Bridge)
Fiber
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2. SHAW TO BU Road(AAB Bridge)
Fiber
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3. Shek Mun SCE (MAN)
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Connection Diagram
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C. Technology Linking Campus
1) Optical Fiber2) Metropolitan Area Network (MAN)
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1) Optical Fiber
» Use pairs of fibers carry the data in different direction
» 10G Ethernet fiber» 40G Ethernet fiber
Reliable
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1) Optical Fiber
Why BU use optical fiber in connection?
a) thinner and lighterb) High speed (light speed)c) high bandwidthd) Relatively little weaken of signals
(low attenuation)e) cheap
Source: Fiber Optic (http://networking.layer-x.com/p070400-1.html)
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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:a. High data transmit capacityb. High qualityc. Cost-efficiency
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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
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→ Can design the network to suit our own need without any restrict from the telecommunication companies
1) Optical Fiber
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2) Metropolitan Area Network
Franki centre (SCE) & Shek Mun
Why?Application for using its own optical fiberfrom Office of Communication Authority
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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.
2) Metropolitan Area Network-
Source: . Government Regulations- OFCA I0004 (12) (http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf)
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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?
Government Regulations2) Metropolitan Area Network-
Source: . Government Regulations- OFCA I0004 (12) (http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf)
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For HKBU,Not allowed to dig tunnel unless authorized
Therefore, Rent the Metropolitan Area Network from
telecommunication company.
2) Metropolitan Area Network
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2) Metropolitan Area Network
Features:1. Support high-speed disaster recovery system2. High speed connection3. capable of supporting ten of millions and hundreds of millions of bits per second
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Why choose MAN?1.Cover greater distance than LAN2. High speed,recover quickly from
router/switch failure3. Dynamically allocate more
bandwidth on demand
2) Metropolitan Area Network
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D. Internet in BU
1) HARNET2) Wired Ethernet3) BU WiFi
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D. Network within each building of HKBUOffice PC/Printer → Ethernet → Switch
Notebook/Smartphone → Wi-Fi → Access Point (AP) Router
Router → HARNET → Internet
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D. Network within each building of HKBU1) 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(http://www.jucc.edu.hk/harnet.html)
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Institutions
ATM connections
Central HARNET hub
Source: HARNET(http://www.jucc.edu.hk/harnet.html)
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2) Cable connection in HKBU campus
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● 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.
2) Cable connection in HKBU campus
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● 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
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●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
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● 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.
2) Cable connection in HKBU campus
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● 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 firstconnected by switch and then through the router connect to the Internet.
2) Cable connection in HKBU campus
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3) Wi-Fi
Wired Networks
Access Point
Smart Phone
Laptop
Tablet Computer
How does Wi-Fi work?
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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
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3) Wi-Fi
•The four types of wifi in HKBU
1. BU-Standard 2. BUSRH-WiFi 3. BU-Web 4. BU-Guest
Encryption
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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/ )
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NetworkSever
Web - manage web page (interface)
File - manage every file
Domain controller - manage login system
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E. UsageSharing of Hardware and Software
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E. Usage
1) UIS2) Moodle3) Printing quota4) Booking Sport venue5) Booking school facility6) Library system
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1. UIS
● Receive news from HKBU
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1. UIS
● Search course information● Pre-registration● Timetable● Exam timetable● Hall registration
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2. Moodle
● Teachers upload notes● Students download notes and upload homework● Communication between teachers and students
through internal message system
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3. Printing quota
● Library● Resident hall● Computer room● AAB 7/F
record every printing cost store the printing quota
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4. Booking sport venue
●Wai Hang Sport Centre●SCC●SHSH
Synchronise data
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5. Booking school facility
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6. Library system
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F. Security
1) External network 2) Internal network
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1) External network
Easily accessed by non-BU students
F. Security
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2) Internal network Firewall Verification
- login - Identity the user (User name, password, Student ID card)
F. Security
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F. Security
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F. Security
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G. The Past and FuturePast✗ Don’t have BU Bridge✗ Don’t have own fiber ✗ Government Regulations
Rent from HK Office of the Communications Authority (OFCA)
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-Incident
✗Some mouse nipped the fibers✗The fibers was damaged
Use steel wire to surround the fibers to protect
G. The Past and Future
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∵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 groundbetween Wai Hang Sports Centre and HSH
G. The Past and Future
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REFERENCESFiber Optics. (n.d.). Retrieved from http://networking.layer-x.com/p070400-1.html6. Triple-Play Network
Government Regulations- OFCA I0004 (12) Retrieved from http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf
HTG Explains: The Difference Between WEP, WPA, and WPA2 Wireless Encryption (and Why It Matters). (n.d.). Retrieved from http://www.howtogeek.com/167783/htg-explains-the-difference-between-wep-wpa-and-wpa2 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 http://ito.hkbu.edu.hk/wifi/
Joint Universities Computer Centre (JUCC). (n.d.). Retrieved from http://www.jucc.edu.hk/harnet.html
William S. (1999). Data Communication And Computer Networks 6th Edition. UK: Pearson Education