Welcome to 273361 กกกกกกกกกกกกกกกกกก กกกกกกกกกกกกกกกกกกก (Network Management for Information Systems) 235032 Computer Network Chapter 1 Introduction to Networking School of ICT, University of Phayao Mr.Sukchatri PRASOMSUK, Ph.D.
School of ICT, University of Phayao Mr.Sukchatri PRASOMSUK, Ph.D.
Jan 03, 2016
Welcome to 273361 การจัดการเครือข่ายสำหรับระบบสารสนเทศ (Network Management for Information Systems) 235032 Computer Network Chapter 1 Introduction to Networking. School of ICT, University of Phayao Mr.Sukchatri PRASOMSUK, Ph.D. About me & Introduce yourself. - PowerPoint PPT Presentation
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Welcome to
273361
การจั�ดการเครอข่�ายสำ�าหร�บระบบสำารสำนเทศ
(Network Management for Information Systems)
235032 Computer Network
Chapter 1Introduction to Networking
Welcome to
273361
การจั�ดการเครอข่�ายสำ�าหร�บระบบสำารสำนเทศ
(Network Management for Information Systems)
235032 Computer Network
Chapter 1Introduction to Networking
School of ICT, University of Phayao
Mr.Sukchatri PRASOMSUK, Ph.D.
ดร.สำ�ข่ชาตร� ประสำมสำ�ข่ (Sukchatri PRASOMSUK, Ph.D.)• PhD. (Computational Linguistics), INALCO, Paris, FR• M.Eng.(IT), & Grad.Dip. In Applied IS, RMIT, Melbourne, AU• B.Sc.(คณิ�ตศาสตร์), ม.ร์ามค�าแหง• เคยทำ�างานทำ�� :
» DATA SOLVE Co.,Ltd. & Central Trading Co.,Ltd» กร์มวิ�ทำยาศาสตร์บร์�การ์ กร์ะทำร์วิงวิ�ทำยฯ» ม.หอการ์ค�า และ ม.แม�ฟ้ าหลวิง
Contact : » [email protected] » 0804509105
• Notes/Slides Download:» http://www.ict.up.ac.th/skchatri/
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About me & Introduce yourself
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Course OverviewStudy time :
• Class: Mon. ICT 1419 : 15.00-17.00 • LAB : Mon. ICT 1402 : 17.00-19.00
Grading :
• Atten.& Assignments (Lec.& LAB) 10 %• Lab Test 1 30 % • Mid-Term Exam 30%• Final-Term Exam 30%
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Course OverviewText:
• Data Communications and networking, 2nd Edition, Forouzan, McGrawHill, 2002
• Cisco CCNA • Network A+
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Scope of Course• Data Communications• LAN (local area networks)• Communications architecture and protocols and
wide-area networks (WAN).• Concepts, terminology, principles and design
approaches used in data communication systems.
• Layered protocol architecture.
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Scope of Course
What are data communication systems?
• A set of devices (hosts) connected by a communication medium that are able to share data through transmission over the media
• System Characteristics include (but are not limited to)– Physical properties of the
communication signals
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Data Communication Systems
– Physical topology of the communication medium and logical topology of the data transmission
– Format and timing of the signals– Error and Flow control, connection
management, recovery, security – be able to quickly find protocol descriptions
and problem solutions/discussions – be able to discuss data communication
systems with supervisors and coworkers on the job
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Introduction– Why do we use data communication
systems?• To facilitate the sharing of resources
– Printers– Disk/Tape drives– Computational Power– Data Sets
• To permit the distribution of workload– Concurrent/parallel computing– Client-server computing– Fault tolerance
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Networks and standardization
• Network goals– information sharing– resource sharing– global environment– Interconnectivity– cost of network equipment, training– Microsoft, Novell, Unix
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Network Evolution• Network evolution
– Local Area network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN)
• Local Area network (LAN)– single building– internal data rates are higher– data rates of 10Mbps - 1 Gbps (1Mbps=
106bps)
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Network Evolution• Copper Distributed Data Interface (CDDI)• Fiber Distributed Data Interface (FDDI)• Low speed LANs--Ethernet, token ring,
token bus and some Non-OSI LANs• High speed LANs--Switched Ethernet,
FDDI, 100 Mbps voice grade, Gigabit Ethernet
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Network Evolution• Metropolitan Area Network (MAN)
– metropolitan area, optical; fiber, financial transaction
• Wide Area Network (WAN)• Wide area networks
– long distance > 800 miles, Govt. agencies own it
– Data rates of 1Mbps-100Gbps• Circuit switching• Packet switching
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Network Evolution• Integrated Services Digital Networks(ISDN)--
>Public telecommunication networks, digital switches and paths, broad range of traffic
• Narrowband ISDN --> 64-kbps channel, circuit switching operations
• Broadband ISDNs--> 100s of Mbps, packet-switching operation
• Frame relay-->high data rates (2 Mbps) and low error rate
• Asynchronous Transfer Mode(ATM)-->Cell relay, fixed length, 10s and 100s of Mbps
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Network Evolution• Public analog telephone networks
– Private line network• offers a fixed bandwidth• slow speed modem• digital line--56 Kbps-1.544 Mbps
– Circuit-switched network• slower data rate
– Packet-switched network• X.25--widely used standard protocol• slower and limited to 56 Kbps
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Network Evolution• Public switched data networks
– low-speed asynchronous terminal interfaces, X.25 synchronous terminal interface
• Value-added networks– communication processors-- nodes,
minicomputer--engine
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Components of computer networks
• Hardware--telephone lines, – coaxial cables (1860, 10,800, 13200 voice
channels, – MOdulation/DEModulation, Coder/decoder, – acoustic coupler, – line interface, terminals, input/output devices, – internetworking devices
• Software--user application, – network operating system, – network control module, – line control module, I/O driver, other library
functions
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Components of computer networks
• Network structure– Interface message processor (IMP)– Point-to-point communication– Multicast communication– Broadcast communication
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Components of computer networks
– How do data communication systems work?• Systems communicate over a shared
communication medium according to an agreed upon convention (standard).
• Several sets of standards currently exist: – TCP/IP– OSI model– Commercial: SNA, IPX, X.25, ...– Proprietary
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LAN evolution• Ethernet-based LANs: 10 Base-2, 10 Base-5,
10 Base1-T, 10 Base-FL, 100 Base-T, 100 Base-FX
• Gigabit Ethernet-- high speed packet switching
• 100/1000 switches• ATM-- LAN-to WAN migration• LANs--higher data rates for integrated traffic• Virtual LAN-- LAN switching, uses a look up
table for routing the frames
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Basic Networking Knowledge
• Bus Topology
• Star Topology
• Ring Topology
• Mesh Topology (for WAN)
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Basic Networking Knowledge
• Bus Topology : IEEE 802.3 , use a process called Carrier Sense Multiple Access/Collision Detection (CSMA/CD) prevents the occurrence of another
collision.
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Basic Networking Knowledge
• Star topology : can have a maximum of 1,024 nodes on a LAN and is commonly used for 10BASE-T (IEEE 802.3) and 100BASE-TX (IEEE 802.12) Ethernet
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Basic Networking Knowledge
• Ring topology : IEEE 802.5, There is no beginning or end of the cable. This particular topology forms a complete ring. The devices on this network use a transceiver to communicate with their neighbors. Transceivers also act like repeaters to regenerate each signal as it is passed through the device.
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Basic Networking Knowledge
• Mesh topology : used for WANs, a mesh topology connects every device on the network together and provides a path to and from each device
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Segments and backbones
• Segments : - a trunk (main line) of cabling (concentration device (hubs or switches) - a logical grouping of devices (subnet) by bridges, switches, or routers.
- collision and/or broadcast domain
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Segments and backbones
• Backbones : -main cable (or trunk) -are the foundations of both
LANs and WANs where servers, routers, and concentrating devices (such as switches and hubs) are connected by a high bandwidth
connection.
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Network Operating Systems (NOS) • Microsoft Windows NT, 2000 : New
Technology File System (NTFS) or File Allocation Table (FAT).
• Novell Netware :uses the NetWare Directory Services (NDS). NetWare's primary file system is a combination of FAT (File Allocation Table) and DET (Directory Entry Table). Layer 3 protocols, which are used in this OS are the Internetwork Package Exchange (IPX) protocol and the Internet Protocol (IP).
• Unix : key features include multitasking, multi-users, and networking capabilities. Multiple versions of UNIX exist, including Sun Microsystems' Solaris, IBM's AIX, Silicon Graphics' IRIX, Linux, or Hewlett-Packard's HP-UX
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Protocol
• IP (Internet protocol)
• IPX (Internetwork Packet Exchange)
• NetBEUI (NetBIOS Extended User Interface)
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RAID Overview (Redundant Array of Inexpensive Disks)
• Mirroring : RAID 1 : 2 Disk 1 controller
• Duplexing : RAID 1 : 2 Disk 2 controller
• Stripping : RAID 2,5 : 3 Disks 1 controller with (no)parity.
• Volumes : logical structure on the same physical disk
• Tape Backup : to store data, Quarter Inch Tape (QIC), Digital Audio Tape (DAT), and Digital Linear Tapes (DLT).
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The OSI model
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Cabling
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Cabling
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Cabling
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Cabling
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Ethernet
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LAN Symbol
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WAN & Devices
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IP Addressing Format
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IP Address Component Fields
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IP Address Classes
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IP Address Bit Patterns
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IP Address Classes
0--------126
128------------------------191
192----------------------------------------254
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Questions :
• IP Address• 10.5.15.100• 198.168.10,15• 191.45.30.10• 127.0.0.0
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