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TDC 363TDC 363Introduction to Local Area Introduction to Local Area

Networks Networks

01/03/2008 1TDC 363-01

Winter 2008Winter 2008James T. Yu, Ph.D.James T. Yu, [email protected]@cs.depaul.edu

School of CTISchool of CTIDePaul UniversityDePaul University

Today’s Class Topics Today’s Class Topics

Course Goals and OverviewCourse Goals and OverviewIntroduction to LANIntroduction to LAN

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CertificationCertificationThe OSI ModelThe OSI Model

Course Goals Course Goals

TheoryTheoryProtocolsProtocolsAddressing SchemeAddressing Scheme

PracticePractice

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Network Design and ImplementationNetwork Design and ImplementationLab ExercisesLab Exercises

CertificationCertificationNetwork+Network+Others Others

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Course Goals (cont.) Course Goals (cont.)

Understand applications of Local Area Networks (LANs) Understand applications of Local Area Networks (LANs) to achieve business objectives and be able to choose to achieve business objectives and be able to choose appropriate LAN technologies for particular business appropriate LAN technologies for particular business applications.applications.Be able to select and interconnect LAN hardwareBe able to select and interconnect LAN hardware

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Understand LAN software implementations and design Understand LAN software implementations and design decisions decisions Be able to do basic user and server configuration forBe able to do basic user and server configuration for

Windows 2000 servicesWindows 2000 servicesNovell NetWare servicesNovell NetWare servicesUNIX/Linux servicesUNIX/Linux services

InstructorInstructorJames T. Yu, Ph.D.James T. Yu, Ph.D.CTI (CS&T) 476CTI (CS&T) 476Phone: (312) 362Phone: (312) 362--59385938Office hours:Office hours:

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Office hours:Office hours:TuTu: 12:30 : 12:30 –– 01:1501:15ThTh: 12:30 : 12:30 –– 01:1501:15

Email: jyuEmail: [email protected]@cs.depaul.eduWeb: Web: http://facweb.cti.depaul.edu/jyu/tdc363/http://facweb.cti.depaul.edu/jyu/tdc363/

Course Overview (cont.)Course Overview (cont.)Class Web Site:Class Web Site:

http://facweb.cti.depaul.edu/jyu/tdc363http://facweb.cti.depaul.edu/jyu/tdc363Class Notes (PowerPoint Files)Class Notes (PowerPoint Files)AnnouncementAnnouncementAssignments and Lab ExercisesAssignments and Lab Exercises

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Assignments and Lab ExercisesAssignments and Lab Exercises

Class notes are available 24 hours before the classClass notes are available 24 hours before the class

It is It is your responsibilityyour responsibility to download and print a copy of to download and print a copy of PPT/PDF slides before coming to class.PPT/PDF slides before coming to class.

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Course Overview (cont.)Course Overview (cont.)

Grade Components:Grade Components:30% 30% -- Homework (3 assignments) Homework (3 assignments)

25% 25% -- Laboratory Exercises Laboratory Exercises (5 (5 exercises)exercises)LAN LabLAN Lab -- Room 659 CTI (CS&T) buildingRoom 659 CTI (CS&T) building

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LAN Lab LAN Lab Room 659 CTI (CS&T) buildingRoom 659 CTI (CS&T) building

20% 20% -- Midterm ExamMidterm Exam

25% 25% -- Final ExamFinal Exam

Total = 100Total = 100

GradingGrading

93 or higher: A93 or higher: A9090--92: A92: A--8585--89: B+89: B+

7070--74: C+74: C+6565--69: C69: C6060--64: C64: C--

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80:84: B80:84: B7575--79: B79: B--

5050--59: D59: DBelow 50: FBelow 50: F

Class attendance will be used at the instructor’s discretion to adjust the grade.

Homework and Lab ExerciseHomework and Lab ExerciseHomework and lab exercises are submitted via the CourseHomework and lab exercises are submitted via the Course--OnOn--Line (COL) web site.Line (COL) web site.

Must be a single MS Word fileMust be a single MS Word fileNo ZIP filesNo ZIP files

Homework is due on the class time (Homework is due on the class time (01:30pm01:30pm).).2020% late penalty for the first day (% late penalty for the first day (01:30pm 01:30pm –– 11:59pm)11:59pm)

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Additional 20% penalty each day after the first day Additional 20% penalty each day after the first day (including weekend)(including weekend)

I will waive the penalty I will waive the penalty for valid for valid reasons supported by signed reasons supported by signed documents from your doctor or your employer.documents from your doctor or your employer.

Discussion with your classmates is encouraged; however, you Discussion with your classmates is encouraged; however, you must not copy each other’s work. must not copy each other’s work. The school has a strict policy against plagiarism.The school has a strict policy against plagiarism.

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Exam PolicyExam Policy

No makeNo make--up exams except for valid reasons supported up exams except for valid reasons supported by signed document from your doctor or your by signed document from your doctor or your employer.employer.You may take an exam earlier if you have a valid You may take an exam earlier if you have a valid reason. I will not reason. I will not accept accept personal excuse, such as personal excuse, such as l i lil i li f S i b kf S i b k

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leaving earlier leaving earlier for Spring break. for Spring break. Exam seating is given by the instructor.Exam seating is given by the instructor.Exams are closed book, closed notes.Exams are closed book, closed notes.

Calculator is allowed but no palm computer.Calculator is allowed but no palm computer.You are allowed to bring a 2You are allowed to bring a 2--page (letter size) note page (letter size) note –– double double size, any fontsize, any font

Chapter OneChapter One

An Introduction to NetworkingAn Introduction to Networking

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gg

Networks and Standalone Networks and Standalone ComputersComputers

NetworkNetworkCollection of computers connected together to Collection of computers connected together to share network’s share network’s resources:resources:

Network (bandwidth)Network (bandwidth)

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( )( )Hardware/device (printer, CDHardware/device (printer, CD--ROM, Tape)ROM, Tape)Software (file, data, application)Software (file, data, application)

Standalone computerStandalone computerUses programs and data only from its local disks Uses programs and data only from its local disks and is not connected to a networkand is not connected to a network

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Local Area NetworkLocal Area Network

Evolving definitionsEvolving definitionsCharacteristics:Characteristics:

High Communications Speed (1M High Communications Speed (1M –– 10G)10G)

Very Low Error Rate (< 10Very Low Error Rate (< 10--88))

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Very Low Error Rate (< 10Very Low Error Rate (< 10 ))Limited Geographic Boundaries ( <1km ???)Limited Geographic Boundaries ( <1km ???)Simple Cabling System (simple encoding scheme)Simple Cabling System (simple encoding scheme)Originally designed to use Originally designed to use broadcast transmissionbroadcast transmission to deliver to deliver data (that is, each transmitted data packet is delivered to data (that is, each transmitted data packet is delivered to all other devices on LAN).all other devices on LAN).

Why Network?Why Network?Answer: sharingAnswer: sharing

Sharing of What?Sharing of What?

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ggAnswer: resourcesAnswer: resources

What Resources?What Resources?

Single Cable NetworkSingle Cable Network

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RJ-45 UTP Cross-over cable

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LAN Type: LAN Type: PeerPeer--toto--Peer NetworkPeer Network

Computers communicate on single segment of cable and Computers communicate on single segment of cable and share each other’s data and devicesshare each other’s data and devicesSimple example of a local area network (LAN)Simple example of a local area network (LAN)

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LAN Type:LAN Type:Client/Server NetworkClient/Server Network

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Advantages of ServerAdvantages of Server--Based Based over Peerover Peer--toto--Peer NetworksPeer NetworksUser login accounts and passwords can be User login accounts and passwords can be assigned in one place.assigned in one place.Access to multiple shared resources can be Access to multiple shared resources can be

tr ll tr ll dtr ll tr ll d

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centrally controlled.centrally controlled.Servers are optimized to handle heavy Servers are optimized to handle heavy processing loads and dedicated to handling processing loads and dedicated to handling requests from clients.requests from clients.Servers can support a large number of Servers can support a large number of computers.computers.

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MANs and WANsMANs and WANs

Campus Area Network (CAN)Campus Area Network (CAN)Metropolitan Area Network (MAN)Metropolitan Area Network (MAN)Wide Area Network (WAN)Wide Area Network (WAN)

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Network that spans large distance and connects Network that spans large distance and connects two or more LANstwo or more LANsThe The InternetInternet is an example of a very intricate and is an example of a very intricate and extensive WAN that spans the globeextensive WAN that spans the globe

WANWAN

Connection provided by a

Service Provider

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Public Network

Internet

Internet Extranet

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Private NetworkIntranet

Extranet

*Intranet ≠ LAN.

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Network ElementsNetwork Elements

WorkstationWorkstationHostHostClient Client ServerServerNetwork interface card (NIC)Network interface card (NIC)

k i S ( S)k i S ( S)

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Network Operating System (NOS)Network Operating System (NOS)Node (can be identified with an address)Node (can be identified with an address)Protocols Protocols –– communication rules between senders and communication rules between senders and receiversreceiversData PacketsData PacketsTransmission MediaTransmission Media[Topology][Topology]

Network Interface Card (NIC)Network Interface Card (NIC)

cf. Figure 1-5: A t k i t f

RJ-45

AUI

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network interface card (NIC)

BNC

Current NIC type: PCI, USB, or PCMCIA Old days: ISA, EISA

How Networks Are UsedHow Networks Are Used

Services provided by a networkServices provided by a networkFile services (file sharing)File services (file sharing)Print/Printer services (printer sharing)Print/Printer services (printer sharing)

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Communications servicesCommunications servicesMail servicesMail servicesInternet servicesInternet servicesManagement servicesManagement services

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Network CertificationNetwork Certification

Network+Network+http://www.gocertify.com/certification/http://www.gocertify.com/certification/

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Why certification?Why certification?How?How?

Review QuestionsReview Questions

What are the advantages of network computers What are the advantages of network computers vs. standalone computers?vs. standalone computers?

Give three examples of network servicesGive three examples of network servicesWhat are the characteristics of LAN?What are the characteristics of LAN?

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List three typical network services.List three typical network services.What are the advantages of clientWhat are the advantages of client--server server networking over peernetworking over peer--toto--peer networking?peer networking?What is the difference between A+ and What is the difference between A+ and Network+?Network+?

Chapter 2Chapter 2

Networking StandardsNetworking Standards

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ggand the OSI Modeland the OSI Model

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StandardsStandards

Standards are documented agreements Standards are documented agreements containing technical specifications or other containing technical specifications or other precise criteria that stipulate how a particular precise criteria that stipulate how a particular

d i h ld b d i dd i h ld b d i d

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product or service should be designed or product or service should be designed or performedperformed

Standard OrganizationsStandard OrganizationsANSI ANSI –– American National Standards InstituteAmerican National Standards InstituteEIA EIA –– Electronic Industries AllianceElectronic Industries AllianceIEEE IEEE –– Institute of Electrical and Electronic Institute of Electrical and Electronic EngineersEngineers

Visit the IEEE standard web siteVisit the IEEE standard web site

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Find the document of IEEE 802.3Find the document of IEEE 802.3ISO ISO –– International Organization for StandardizationInternational Organization for StandardizationITU ITU –– International Telecommunication UnionInternational Telecommunication UnionICANN ICANN –– Internet Corporation for Assigned Names Internet Corporation for Assigned Names and Numbersand NumbersIETF IETF –– Internet Engineering Task ForceInternet Engineering Task Force

Where can you find the standards of Internet Protocol (IP)?Where can you find the standards of Internet Protocol (IP)?

The OSI ModelThe OSI Model

Open Systems Interconnection (OSI) ModelOpen Systems Interconnection (OSI) ModelModel for understanding and developing computerModel for understanding and developing computer--toto--computer communicationcomputer communicationDeveloped in the 1980s by ISODeveloped in the 1980s by ISO

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p yp yDivides network architecture into seven layersDivides network architecture into seven layers

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The OSI Model (cont.)The OSI Model (cont.)

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the OSI Modelthe OSI Model

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Fragmentation and ReassemblyFragmentation and Reassembly

Fragmentation: Fragmentation: Divide a large data Divide a large data frame/packet from the upper layer into smaller frame/packet from the upper layer into smaller pieces and send to the lower layerpieces and send to the lower layerReassembly: Assemble smaller pieces from theReassembly: Assemble smaller pieces from the

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Reassembly: Assemble smaller pieces from the Reassembly: Assemble smaller pieces from the lower layer into the original frame/packet and lower layer into the original frame/packet and send to the upper layersend to the upper layerFragmentation may Fragmentation may appear at any layer of the appear at any layer of the OSI model.OSI model.

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Flow ControlFlow Control

Synchronize the transmission of the sender and Synchronize the transmission of the sender and receiver. In general, slows down the sender so receiver. In general, slows down the sender so that the receiver can process data.that the receiver can process data.Flow control between adjacent pointsFlow control between adjacent points

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Flow control between adjacent pointsFlow control between adjacent pointsFlow control between the end points.Flow control between the end points.Flow control may be applied at any layer in the Flow control may be applied at any layer in the OSI model.OSI model.

SequencingSequencing

Sequencing:Sequencing:Process of assigning a placeholder to each piece Process of assigning a placeholder to each piece of a data block to allowing the receiving node of a data block to allowing the receiving node reassemble data in correct order.reassemble data in correct order.Gi i th t th d t ld b i dGi i th t th d t ld b i d

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Give a scenario that the data could be received Give a scenario that the data could be received out of sequence.out of sequence.

Acknowledgement (ACK)Acknowledgement (ACK)Response generated by the receiver to confirm Response generated by the receiver to confirm to the sender that the data was receivedto the sender that the data was received

Communications (layer1)Communications (layer1)

ApplicationPresentation

SessionTransport


SessionTransport

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pNetworkData LinkPhysical

pNetworkData LinkPhysicalLayer-1

DeviceLayer-1Device

no addressing scheme needed

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SessionTransport


SessionTransport

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Layer-2Device

Layer-2Device

layer 2 addressing scheme needed



SessionTransport


SessionTransport

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Layer-3Device

Layer-3Device

layer 2/3 addressing schemes needed

IEEE Networking SpecificationsIEEE Networking Specifications

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IEEE 802.3 StandardIEEE 802.3 Standard

10M Ethernet 10M Ethernet –– 802.3802.3Fast Ethernet Fast Ethernet –– 802.3u802.3uGigabit EthernetGigabit Ethernet –– 802 3z 802 3ab802 3z 802 3ab

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Gigabit Ethernet Gigabit Ethernet –– 802.3z, 802.3ab802.3z, 802.3ab10 10 Gigabit Ethernet Gigabit Ethernet –– 802.3ae, 802.3an802.3ae, 802.3an

Review QuestionsReview QuestionsGive two examples of standards from IETFGive two examples of standards from IETFCan you find the URL of IEEE 802.11? Can you find the URL of IEEE 802.11? Give two examples of layer 2 standards specified Give two examples of layer 2 standards specified by IEEE.by IEEE.Wh h d d f 10M E h 100MWh h d d f 10M E h 100M

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What are the standards for 10M Ethernet, 100M What are the standards for 10M Ethernet, 100M Ethernet, 1G Ethernet, and 10G Ethernet?Ethernet, 1G Ethernet, and 10G Ethernet?Describe the following terms (as they are used in Describe the following terms (as they are used in the OSI model): flow control, segmentation and the OSI model): flow control, segmentation and reassembly, sequence control.reassembly, sequence control.

Chapter 3Chapter 3

T i i dT i i d

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Transmissions and Transmissions and Networking Networking MediaMedia

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Chapter ObjectivesChapter Objectives

Explain data transmission concepts and digital Explain data transmission concepts and digital signalssignalsDescribe transmission cables: including coaxial Describe transmission cables: including coaxial cable, STP, UTP, and fibercable, STP, UTP, and fiber--optic mediaoptic media

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ppDescribe different Ethernet standardsDescribe different Ethernet standardsExplain the benefits and limitations of different Explain the benefits and limitations of different networking medianetworking mediaIdentify the practices for cabling buildings and Identify the practices for cabling buildings and work areaswork areas

Media

GuidedMedia

UnguidedMedia

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CoaxCable

TwistedPair

FiberOptics

Infrared RadioFrequency

Media CharacteristicsMedia Characteristics

ThroughputThroughputCostCostSize and scalabilitySize and scalability

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Size and scalabilitySize and scalabilityConnectorsConnectorsNoise immunityNoise immunity

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Coaxial CableCoaxial Cable

Consists of Consists of central copper central copper core core surrounded by surrounded by an insulator, an insulator,

01/03/2008 46TDC 363-01

braidingbraiding, , and outer and outer cover called a cover called a sheathsheath

Thicknet (10Base5)Thicknet (10Base5)

Also called Also called thickwire Ethernetthickwire EthernetRigid coaxial cable used on original Ethernet Rigid coaxial cable used on original Ethernet networksnetworksIEEE designates Thicknet as IEEE designates Thicknet as 10Base510Base5 EthernetEthernet

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EEE designates Thicknet asEEE designates Thicknet as 0Base50Base5 EthernetEthernetAlmost never used on new networks but you may Almost never used on new networks but you may find it on older networksfind it on older networks

Used to connect one data closet to another as part of Used to connect one data closet to another as part of network network backbonebackbone

Thicknet CharacteristicsThicknet CharacteristicsThroughputThroughput

According to IEEE 802.3, Thicknet transmits data According to IEEE 802.3, Thicknet transmits data at maximum rate of 10 Mbpsat maximum rate of 10 Mbps

CostCostL i h fibL i h fib i bi b

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Less expensive than fiberLess expensive than fiber--optic but more optic but more expensive than some other types of coaxial cableexpensive than some other types of coaxial cable

ConnectorConnectorCan include a few different types of connectors, Can include a few different types of connectors, which are different from those used on modern which are different from those used on modern networksnetworks

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Thicknet CharacteristicsThicknet CharacteristicsIn Thicknet In Thicknet networking, the networking, the transceiver is a transceiver is a separate device separate device and may also be and may also be called a called a media media

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access unit access unit (MAU)(MAU)Attachment Attachment Unit Interface Unit Interface (AUI)(AUI)

Thicknet CharacteristicsThicknet Characteristics

Noise immunityNoise immunityBecause of its wide diameter and excellent shielding, Because of its wide diameter and excellent shielding, it has the highest resistance to noise of any it has the highest resistance to noise of any commonly used types of network wiringcommonly used types of network wiring

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y yp gy yp gSize and scalabilitySize and scalability

Because of its high noise resistance, it allows data to Because of its high noise resistance, it allows data to travel longer than other types of cablingtravel longer than other types of cabling

Thinnet (10Base2)Thinnet (10Base2)Also known as Also known as thin Ethernetthin EthernetCharacteristics:Characteristics:

ThroughputThroughputCan transmit at maximum rate of 10 MbpsCan transmit at maximum rate of 10 Mbps

CostCost

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CostCostLess expensive than Thicknet and fiberLess expensive than Thicknet and fiber--optic cableoptic cableMore expensive than twistedMore expensive than twisted--pair wiringpair wiring

ConnectorsConnectorsConnects wire to network devices with Connects wire to network devices with BNC TBNC T--connectorsconnectors

A seen in Figure 4A seen in Figure 4--19, 19, BNC barrel connectorsBNC barrel connectors are used to join are used to join two Thinnet cable segments togethertwo Thinnet cable segments together

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Thinnet (10Base2)Thinnet (10Base2)

Characteristics (cont.):Characteristics (cont.):Size and scalabilitySize and scalability

Allows a maximum of Allows a maximum of 185 m per network 185 m per network segment (see Figure 4segment (see Figure 4--

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g ( gg ( g20)20)

Noise immunityNoise immunityMore resistant than More resistant than twistedtwisted--pair wiringpair wiringLess resistant than Less resistant than twistedtwisted--pair wiringpair wiring

Thinnet (10Base2)Thinnet (10Base2)

Signal bounceSignal bounceCaused by Caused by improper improper termination on a termination on a bus networkbus networkTravels endlessly Travels endlessly

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yybetween two between two ends of networkends of networkPrevents new Prevents new signals from signals from getting throughgetting through

TwistedTwisted--Pair (TP) CablePair (TP) CableColorColor--coded pairs of coded pairs of insulated copper wires insulated copper wires twisted around each other twisted around each other and encased in plastic and encased in plastic coatingcoatingTwists in wire help reduce Twists in wire help reduce

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ppeffects ofeffects of crosstalkcrosstalk

Number of twists per meter Number of twists per meter or foot known as or foot known as twist ratiotwist ratio

Alien CrosstalkAlien CrosstalkWhen signals from adjacent When signals from adjacent cables interfere with another cables interfere with another cable’s transmissioncable’s transmission

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Shielded TwistedShielded Twisted--Pair (STP)Pair (STP)

STP cable consists of twisted wire pairs that are individually STP cable consists of twisted wire pairs that are individually insulated and surrounded by shielding made of metallic insulated and surrounded by shielding made of metallic substancesubstance

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Unshielded TwistedUnshielded Twisted--PairPair

Consists of one or Consists of one or more insulated wire more insulated wire pairs encased in a pairs encased in a

l i h hl i h h

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plastic sheathplastic sheathDoes not contain Does not contain additional shieldingadditional shielding

Unshielded TwistedUnshielded Twisted--PairPair

To manage network To manage network cabling, it is necessary cabling, it is necessary to be familiar with to be familiar with standards used on standards used on

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modern networks, modern networks, particularly particularly

Category 3 (CAT3)Category 3 (CAT3)Category 5 (CAT5)Category 5 (CAT5)Category 5eCategory 5eCategory 6 (CAT6)Category 6 (CAT6)

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UTP Cable StandardsUTP Cable StandardsCategory Category BandwidthBandwidth UseUse

33 16MHz16MHz 10Base10Base--T and voiceT and voice

44 20MHz20MHz Never really usedNever really used

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55 100MHz100MHz 100Base100Base--T and 1000BaseT and 1000Base--TT

5e5e 100MHz100MHz 100BaseTX, Gigabit Ethernet100BaseTX, Gigabit Ethernet

6 and 6a6 and 6a 250MHz250MHz Gigabit and 10G EthernetGigabit and 10G Ethernet

77 600MHz600MHz ??????

10BaseT10BaseT

Popular Ethernet networking standard that replaced Popular Ethernet networking standard that replaced 10Base2 and 10Base5 technologies10Base2 and 10Base5 technologies

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A 10BaseT Ethernet network

100BaseT and 1000BaseT100BaseT and 1000BaseT

Enables LANs to run at 100Enables LANs to run at 100--Mbps and 1G bpsMbps and 1G bps100BaseT == Fast Ethernet100BaseT == Fast EthernetTwo 100BaseT specifications have competed for Two 100BaseT specifications have competed for popularity as organizations move to 100popularity as organizations move to 100--Mbps Mbps

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technology:technology:100BaseTX: Cat100BaseTX: Cat--5 Cable, full duplex5 Cable, full duplex

100BaseT4: Cat100BaseT4: Cat--3 cable, half duplex3 cable, half duplex

1000BaseT: 1000BaseT: CatCat--5e 5e cable, full cable, full duplexduplex10GBaseT: Cat10GBaseT: Cat--6 and Cat6 and Cat--6a6a

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Comparing STP and UTPComparing STP and UTP

ThroughputThroughputBoth can transmit up to 100 MbpsBoth can transmit up to 100 Mbps

CostCostSTP is more expensiveSTP is more expensive

CC

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ConnectorConnectorBoth use Both use RJRJ--4545 connectors (see Figure 4connectors (see Figure 4--27) and data jacks27) and data jacks

Noise immunityNoise immunitySTP is more noiseSTP is more noise--resistantresistant

Size and scalabilitySize and scalabilityMaximum segment length for both is 100 metersMaximum segment length for both is 100 meters

RJRJ--45 Connector45 Connector

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Different UTP CablesDifferent UTP CablesStraightStraight--through cablethrough cable

Terminations at both ends are identicalTerminations at both ends are identicalCrossover cableCrossover cable

Terminations locations of transmit and receiver wires on one end of cable Terminations locations of transmit and receiver wires on one end of cable are reversedare reversed

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FiberFiber--Optic CableOptic Cable

Contains one or Contains one or several glass fibers several glass fibers at its at its corecore

Surrounding the Surrounding the fibers is a layer offibers is a layer of

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fibers is a layer of fibers is a layer of glass called glass called claddingcladding

A fiber-optic cable

FiberFiber--Optic CableOptic Cable

SingleSingle--mode fibermode fiberCarries light pulses Carries light pulses along single pathalong single path

l d f bl d f b

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Multimode fiberMultimode fiberMany pulses of Many pulses of light generated by light generated by LED travel at LED travel at different anglesdifferent angles

FiberFiber--Optic CableOptic CableTwo popular connectors used with fiberTwo popular connectors used with fiber--optic optic cable:cable:

ST connectorsST connectorsSC connectorsSC connectorsMTMT--RJRJ

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LCLC

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Fiber TypesFiber TypesFiber Type Core (microns) Cladding (microns)

62.5/125 62.5 125

50/125 50 125

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100/140 100 140

8.3/125 8.3 125

Advantage: noise resistance, less attenuation, and higher bandwidth.

Disadvantage: cost, installation/maintenance, and fragility.

Cable Standard Cable Standard for Ethernetfor Ethernet

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Cable Design and ManagementCable Design and Management

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A structured cabling hierarchy

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Cable plantCable plantHardware comprising Hardware comprising enterpriseenterprise--wide wide cabling systemcabling system

Structured cablingStructured cabling

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Method for uniform, Method for uniform, enterpriseenterprise--wide, wide, multivendor cabling multivendor cabling systemssystems


Equipment roomEquipment roomTelecommunicatioTelecommunications closetns closet

PunchPunch--down down blockblock

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blockblockPatch panelPatch panel is a is a wallwall--mounted mounted panel of data panel of data receptorsreceptors


Horizontal wiringHorizontal wiring

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Work areaWork areaPatch cablePatch cable is a is a relatively short relatively short section of twistedsection of twisted--pair cabling with pair cabling with

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p gp gconnectors on both connectors on both ends that connect ends that connect network devices to network devices to data outletsdata outlets

Installing Installing CableCable

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Review QuestionsReview Questions

What is attenuation? How do you solve this problem?What is attenuation? How do you solve this problem?Comparison of 10Base5, 10Base2, and 10BaseT: speed, Comparison of 10Base5, 10Base2, and 10BaseT: speed, distance, cable (Coax cable, STP, UTP, and fiber), distance, cable (Coax cable, STP, UTP, and fiber), connector (AUI, BNC, RJconnector (AUI, BNC, RJ--45).45).Comparison of UTP and STP. Which one is more Comparison of UTP and STP. Which one is more popular? Why?popular? Why?

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popular? Why?popular? Why?Various Ethernet cable standardsVarious Ethernet cable standards

Data rate, cable (UTP, MM, SM), and network distanceData rate, cable (UTP, MM, SM), and network distanceCompare crossover cable vs. straight through cable. Compare crossover cable vs. straight through cable. Provide an example where your will use crossover Provide an example where your will use crossover cable.cable.

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Review Questions (cont.)Review Questions (cont.)

Comparison of SM and MM. Provide an Comparison of SM and MM. Provide an example where you will use SM and another example where you will use SM and another example where you prefer to use MM.example where you prefer to use MM.Draw a diagram to illustrate the entrance Draw a diagram to illustrate the entrance

01/03/2008 76TDC 363-01

ggfacility, equipment room, and telecom room facility, equipment room, and telecom room (wiring closet).(wiring closet).Draw a diagram to illustrate the use of punch Draw a diagram to illustrate the use of punch down block and patch panel. What are their down block and patch panel. What are their functions? Where do you see them?functions? Where do you see them?

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