Presentation on theme: "Technology Linking Campus Together"— Presentation transcript:
1Technology Linking Campus Together ISEM 3015 Telecommunications and NetworkingTechnology Linking Campus TogetherGroup 3 Vivian, Chan Ka Ka Kami, Wan On Kam Vanessa, Chow Ying Tung Phoebe, Cheung Hiu YingAndy, Wong Tsun Lam Candy, Wong Ka HeiDenis, Chau Kwan Hang
2Technology Linking Campuses OutlineNetworkCampuses in HKBUTechnology Linking CampusesInternet in BUSecurityUsage of NetworkThe Past and FutureWhat is Network?Campuses in HKBUHSH to ShawShaw to BU Road UniveristyShek Mun and SCETechnology Linking Campus :Optical FiberMetropolitan Area Network (MAN)Internet in BU:HARNETWired EthernetBU WiFiSecurityExternal networkInternal networkUsage of Network1) UIS 2) Moodle 3) Printing quota4) Booking Sport venue 5) Booking school facility6) Library systemThe Past and Future
3A. What is Network? Enable communication between computers Support: Access to World Wide WebShared use of applicationStorage ServerShared Printer
16C. Technology Linking Campus Optical FiberMetropolitan Area Network (MAN)
17Reliable 1) Optical Fiber Use pairs of fibers carry the data in different direction10G Ethernet fiber40G Ethernet fiberReliable
181) Optical Fiber Why BU use optical fiber in connection? thinner and lighterHigh speed (light speed)high bandwidthRelatively little weaken of signals (low attenuation)cheapSource: Fiber Optic (http://networking.layer-x.com/p html)
191) 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 connectionRequest:High data transmit capacityHigh qualityCost-efficiency
201) Optical Fiber In the PAST…. rent from the telecommunication company Now…connect the network by ourselvesuse the BU Bridge to connect the two campus
211) Optical Fiber→ Can design the network to suit our own need without any restrict from the telecommunication companies
232) Metropolitan Area Network Franki centre (SCE) & Shek MunWhy?Application for using its own optical fiberfrom Office of Communication Authority
24Government Regulations 2) Metropolitan Area Network-Government RegulationsGovernment 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) (http://www.ofca.gov.hk/filemanager/ofca/common/Industry/telecom/inote0004_12e.pdf)
252) 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)
262) Metropolitan Area Network For HKBU, Not allowed to dig tunnel unless authorized Therefore, Rent the Metropolitan Area Network from telecommunication company.
272) 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
282) 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
31D. Network within each building of HKBU Office PC/Printer → Ethernet → SwitchNotebook/Smartphone → Wi-Fi → Access Point (AP)RouterRouter → HARNET → Internet
32D. Network within each building of HKBU 1) HARNETThe Hong Kong Academic and Research NetworkWide area network links eight tertiary institutions’ campus networksManaged and operated by the Joint Universities Computer Centre (JUCC)Source: HARNET(http://www.jucc.edu.hk/harnet.html)
33Institutions Central HARNET hub ATMconnectionsCentral HARNEThubSource: HARNET(http://www.jucc.edu.hk/harnet.html)
352) 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.
362) Cable connection in HKBU campus The wires are not long enoughIn 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 floorThere is a main cable closet which is responsible for connecting the all cable closet on the floor.
372) 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 LANTherefor, all the PC and printer in the building are connected
382) Cable connection in HKBU campus Connection of cable closet from different building will connect to switch.The switch will then connect to routerRouter: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.
392) Cable connection in HKBU campus Each building has a router connect to other bulidingsOPTICAL FIBER is used to transmit data between router and switch and the data transmit between routerAll 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.
413) Wi-Fi Laptop Wired Networks Smart Phone Tablet Computer How does Wi-Fi work?Wired NetworksLaptopTablet ComputerAccess Point
423) 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
433) Wi-Fi •The four types of wifi in HKBU 1. BU-Standard 2. BUSRH-WiFi 3. BU-Web4. BU-GuestEncryption
443) 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 vulnerabilitiesSource: 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/)
45Network Sever Web - manage web page (interface) File - manage every fileDomain controller- manage login system
46Sharing of Hardware and Software E. UsageSharing of Hardware and Software
47E. Usage UIS Moodle Printing quota Booking Sport venue Booking school facilityLibrary system
60G. The Past and Future Past Don’t have BU Bridge Don’t have own fiber Government RegulationsRent from HK Office of the Communications Authority (OFCA)
61G. The Past and Future -Incident Some mouse nipped the fibers The fibers was damagedUse steel wire to surround the fibers to protect
62G. The Past and Future ∵Demand Increase Future Provide more fibers for usersUse the better quality fibersDo not remove the old one because it is very difficult☆Build up the three tunnels on the groundbetween Wai Hang Sports Centre and HSH
63REFERENCESFiber Optics. (n.d.). Retrieved from Triple-Play NetworkGovernment Regulations- OFCA I0004 (12)Retrieved fromHTG Explains: The Difference Between WEP, WPA, and WPA2 Wireless Encryption (and Why It Matters). (n.d.).Retrieved fromwireless-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 fromJoint Universities Computer Centre (JUCC). (n.d.). Retrieved fromWilliam S. (1999). Data Communication And Computer Networks 6th Edition. UK: Pearson Education