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

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