Download ppt on local area network

MSc WLAN, IP/TCP and COMM NETWORK Topics

two computers over the internet so that users of one computer can transfer files and perform file commands on the other computer. TELNET (TELe type NETwork) TELNET is a network protocol based on the internet or the local area network (LAN) connections. The term telnet also refers to software which implements the client part of the protocol. DNS (Domain Name System) Domain Name System ( DNS/


Telephony Networking.

area (LATA) – the area serviced by a LEC Incumbent local exchange carrier (ILEC) – a telco already in business before the Telecommunications Act of 1996 Competitive local exchange carrier (CLEC) – a company that competes with LECs and ILECs Interexchange carrier (IXC) – a company that carries long-distance calls between LECs in different LATAs Industry Standards and Protocols International Telecommunications Union (ITU) – manages worldwide telephony and networking/


Chapter 2 Local Networks 15/01/2013 Bahman R. Alyaei.

, or the point of presence (POP). 15/01/2013 Bahman R. Alyaei Geographical area of five exchanges A sample local area (arrows represent trunk pull; dashed lines delineate serving areas). 15/01/2013 Bahman R. Alyaei Basic Telecommunication Network 15/01/2013 Bahman R. Alyaei Continue… To build the most economical local network assuming an established Quality of Service (QoS), the following should be known: Geographic extension/


1 Chapter One Introduction to Computer Networks and Data Communications.

/ microcomputer to mainframe Microcomputer to local area network Microcomputer to Internet Local area network to local area network Personal area network to workstation Chapter One - Introduction to Computer Networks And Data Communications 10 Computer Networks – Basic Connections Local area network to metropolitan area network Local area network to wide area network Sensor to local area network Satellite and microwave Wireless telephone and wired telephone to network Chapter One - Introduction to Computer/


Chapter 4 Network Layer Computer Networking: A Top Down Approach 6th edition Jim Kurose, Keith Ross Addison-Wesley March 2012 A note on the use of these.

Hierarchical OSPF backbone boundary router backbone router area border routers area 3 internal routers area 1 area 2 Network Layer Hierarchical OSPF two-level hierarchy: local area, backbone. link-state advertisements only in area each nodes has detailed area topology; only know direction (shortest path) to nets in other areas. area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers. backbone routers: run OSPF routing limited to/


Chapter 4 Network Layer Computer Networking: A Top Down Approach 6th edition Jim Kurose, Keith Ross Addison-Wesley March 2012 A note on the use of these.

Hierarchical OSPF backbone boundary router backbone router area border routers area 3 internal routers area 1 area 2 Network Layer Hierarchical OSPF two-level hierarchy: local area, backbone. link-state advertisements only in area each nodes has detailed area topology; only know direction (shortest path) to nets in other areas. area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers. backbone routers: run OSPF routing limited to/


Chapter 7 Local Area Networks : The Basics

another. Frame format for IEEE 802.3 CSMA/CD Protocol Frame Format for IEEE 802.5 Token Ring Protocol Local Area Network Systems Data Communications and Computer Networks Chapter 7 Local Area Network Systems The entire system with protocol and topology Local Area Network Systems Data Communications and Computer Networks Chapter 7 Local Area Network Systems Ethernet or CSMA/CD Most common form of LAN today. Star-wired bus is most common topology but/


Chapter 3 Network Technologies.

at PARC by the DIX consortium Ethernet II was developed quickly after the original 802.3 specification and published in 1982 Local Area Network Technology Ethernet Media and Topology Ethernet has evolved from a signaling rate of 10Mbps to a current speed of 1Gbps current/Fibre Channel It is a mixture of both Ethernet and Token Ring topologies It can support as many as 127 devices Local Area Network Technology Fibre Channel configured in a fabric is used to connect as many as 16,777,216 devices in a switched /


The Role of Local Authorities in the Management of the Roads in Malawi.

(U) 7701957851,3489 Total Designated 4,07310011,37810015,451100 %Share2674100 Community Road Network 09,4789,47838 Total Road Network 4,07320,85624,929 The Current Role of the Local Authorities in Management of Roads Since 1999 when the Ministry of Works stopped /the road side drains, which have been blocked deliberately. Construction of structures within the road reserve is another area in which the assemblies can play a vital role in halting this malpractice by issuing stop orders to such developments/


Microelectronics THE SECOND IEEE WORKSHOP ON Wireless Local Area Networks IEEE 802.11 Wireless LAN draft Standard Keith B. Amundsen Wireless Solutions.

across router ports is being address by a higher layer committee) Microelectronics THE SECOND IEEE WORKSHOP ON Wireless Local Area Networks Overview, IEEE 802.11 Committee Committee formed in 1990 –Wide attendance Multiple Physical Layers –Frequency Hopping Spread/-bit LFSR –128-bit Preamble Sync pattern –48-bit Header Microelectronics THE SECOND IEEE WORKSHOP ON Wireless Local Area Networks 802.11 Physical Layer, cont. Antenna Diversity –Multipath fading a signal can inhibit reception –Multiple antennas can/


CS 640 Introduction to Computer Networks Fall 1999 Professor Landweber Copyright 1999, Lawrence H. Landweber Copyright 1996, Larry Peterson (slides marked.

PrimarySecondary I RR RR RNR RNR REJ * REJ * SABME UA DISC DM FRMR *Receive window = 1, only receive in order, REJ requests resend of ALL sent, beginning with lost one Local Area Networks Standardized by IEEE as 802.x A variety of Media Access Control (MAC) protocols and associated topologies –802.3, Ethernet, CSMA/CD (3u, 3z) –802.4, Token Bus –802.5/


Train IT – Computer Networks University of Debrecen

. Increasing reliability. Increasing speed. Human communication. Train IT - Networks 3 Debrecen, 2012. Classification of Computer Networks Based on their Sizes Range < 1m 1 km 10 km 100 km < Name Multicomputer Local Area Network (LAN) Metropolitan Area Network (MAN) Wide Area Network (WAN) Train IT - Networks 4 Debrecen, 2012. Components of LANs Computers Network cards Peripherals Network transmission lines Network devices Train IT - Networks 5 Debrecen, 2012. Functions of WANs Covering large geographical/


Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources Copyright © 2011 Pearson Education, Inc. Publishing as.

2011 Pearson Education, Inc. Publishing as Prentice Hall16 Local Area Networks Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall17 Peer-to-peer (P2P) networks Local Area Networks Client/server networks Made up of one or more file servers and / slow down with heavy use Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall18 Local Area Networks Virtual private network Operates over the Internet Is accessible by authorized users for quick access to corporate information Uses /


Network Layer4-1 Chapter 4 Network Layer Computer Networking: A Top Down Approach Featuring the Internet, 2 nd edition. Jim Kurose, Keith Ross Addison-Wesley,

OSPF r Hierarchical OSPF in large domains. Network Layer4-75 Hierarchical OSPF Network Layer4-76 Hierarchical OSPF r Two-level hierarchy: local area, backbone. m Link-state advertisements only in area m each nodes has detailed area topology; only know direction (shortest path) to nets in other areas. r Area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers. r Backbone routers: run OSPF/


I. The Emerging Era of Choice

Brief: Silica Healthcare1 National hospital provider with hospital campuses across the country Despite broad geography, limited clinical depth at local level 6-hospital system in the Midwest with employed physician network Care sites concentrated in roughly half of single metropolitan area Pseudonym. Source: Health Care Advisory Board interviews and analysis. Full Care Continuum Important for Payer Partners Four Reasons PinnacleHealth System Selected for/


North Regional Team Regional Team Structure

Barkworth Assistant Contract Managers Support Team Chis Naish PH Contracts Support Officer 1 x Vacancy Admin Assistant Lancashire Area Team Commissioning Director Team (Screening and Immunisation) Head of Public Health Commissioning Shelagh Garnett Screening and /214068 susan.dunnicliff@nhs.net Donna Roberts Contract Manager 01772 678025 donna.roberts1@nhs.net Stephen Gough Local Professional Network Lead 01772 678015 stephen.gough@nhs.net Max Harrison Primary Care Contracts Manager 01772 214616 Max.harrison/


1 Modernizing & Strengthening Oklahoma’s Aging Network Interim Study IS11-102 October 18, 2011 Lance Robertson, State Director OKDHS Aging Services Division.

on Aging - planning, advocacy, and development of OAA services in regional service area Program Partners – Meals on Wheels, Regional Councils, Dept of Commerce, Insurance Dept, etc. Network of Providers (subcontractors) – service delivery at local level 20 Modernizing & Strengthening Oklahoma’s Aging Network OK Aging Network Modernizing & Strengthening Oklahoma’s Aging Network 21 A Joint Proposal of NASUA and n4a21 OAA = 0.066% Total Federal Budget of/


Reti di calcolatori e Sicurezza -- Network Layer ---

topology data base as OSPF Hierarchical OSPF in large domains. Network Layer Hierarchical OSPF Network Layer Hierarchical OSPF Two-level hierarchy: local area, backbone. Link-state advertisements only in area each nodes has detailed area topology; only know direction (shortest path) to nets in other areas. Area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers. Backbone routers: run OSPF routing limited to backbone/


Network reboot... The next generation of Scouting for all 18-25 year olds.

training weekends and fundraising events -Source resources needed for project Cost: ca. Personal Expenses Impact: positively contribute to local communities, developing an understanding of the concerns of the local area. Learn about team management. Form valuable relationships among Network team and with the community groups. District Scout Network: Community Projects Example: Japanese Evening. Activities to include: -Sampling Japanese cuisines -Learn simple origami and use skills/


Security S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks1 Contents Security requirements Public key cryptography Key agreement/transport.

Supported security algorithms Chosen security algorithms Encrypted pre-master secret Compute keys MAC of handshake messages Secure data transport Security S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks30 Virtual Private Network (VPN) A virtual private network (VPN) can be used within a public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their/


Security in Wireless Ad Hoc and Sensor Networks

related to the protocols and algorithms. Before conclusion we show a couple of slides where several simulation and testing tools for sensor and actuator networks are introduced. local area subsystem terminal wireless communications mobile radio non-wireless communications wide area subsystem node mobile radio Mobile Subsystem mobile radio (MR) cluster head MR relaying MR SATT SAT tier UAVT UAV tier RAPT RAP tier MRT/


Chapter 6 Medium Access Control Protocols and Local Area Networks Part I: Medium Access Control Part II: Local Area Networks.

Delay Load E[T]/X   max 1 1 a a a > a Chapter 6 Medium Access Control Protocols and Local Area Networks 6.2 Random Access ALOHA Wireless link to provide data transfer between main campus & remote campuses of University of Hawaii Simplest /and FDDI 802.11 Wireless LAN 6.11 LAN Bridges Chapter 6 Medium Access Control Protocols and Local Area Networks Overview of LANs What is a LAN? Local area means: Private ownership freedom from regulatory constraints of WANs Short distance (~1km) between computers low cost/


Chapter 6 Medium Access Control Protocols and Local Area Networks Part I: Medium Access Control Part II: Local Area Networks.

and Local Area Networks Part II: Local Area Networks Overview of LANs Ethernet Token Ring and FDDI 802.11 Wireless LAN LAN Bridges Chapter 6 Medium Access Control Protocols and Local Area Networks Overview of LANs What is a LAN? Local area means/ring activity increases, TRT increases and asynch traffic throttled down Chapter 6 Medium Access Control Protocols and Local Area Networks 802.11 Wireless LAN Wireless Data Communications Wireless communications compelling Easy, low-cost deployment Mobility & roaming/


Chapter 6 Medium Access Control Protocols and Local Area Networks Part I: Medium Access Control Part II: Local Area Networks.

and Local Area Networks Part II: Local Area Networks Overview of LANs Ethernet Token Ring and FDDI 802.11 Wireless LAN LAN Bridges Chapter 6 Medium Access Control Protocols and Local Area Networks Overview of LANs What is a LAN? Local area means/ring activity increases, TRT increases and asynch traffic throttled down Chapter 6 Medium Access Control Protocols and Local Area Networks 802.11 Wireless LAN Wireless Data Communications Wireless communications compelling Easy, low-cost deployment Mobility & roaming/


Communication and Network Concepts

also beneficial in older buildings where it may be difficult or impossible to install cables. Types of Networks Local Area Network - LAN Metropolitan Area Network – MAN Wide Area Network - WAN Local Area Network A Local Area Network (LAN) is a network that is confined to a relatively small area. It is generally limited to a geographic area such as a writing lab, school, or building. Rarely are LAN computers more than a mile apart. In a typical/


Chapter 4 Network Layer Computer Networking: A Top Down Approach 6 th edition Jim Kurose, Keith Ross Addison-Wesley March 2012 A note on the use of these.

4-113 Hierarchical OSPF boundary router backbone router area 1 area 2 area 3 backbone area border routers internal routers Network Layer 4-114  two-level hierarchy: local area, backbone.  link-state advertisements only in area  each nodes has detailed area topology; only know direction (shortest path) to nets in other areas.  area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers.  backbone routers: run OSPF routing/


WIRELESS SENSOR NETWORKS

: an address is a geographical area, described by geographical parameters Most uses for data centric protocols are outside of wireless sensor networks Diffusion protocols are simple but they are suitable only for a small number of use cases Geographical protocols are conceptually most suitable for wireless sensor networks but making a routing decision can be very complex Topics Localization and Positioning Synchronization and Security/


1 Thinking About Your Wide Area Network Connectivity NWACC Networking for the 21st Century Portland, Oregon, June 15th, 2001 Joe St Sauver, Ph.D.

not, you will almost certainly have to make some changes to your wide area networking. 92 The Coming Theme: Fast and Cheap (F&C) F&C powerful commodity PC hardware F&C local area hundred megabit and gigabit networking hardware F&C high speed remote access (DSL & cable modems) F&C specialized wide area connectivity (I2) F&C commodity connectivity (e.g., Cogent Communications, Yipes, Telseon/


Chapter Two - The Origin of Networked Virtual Environments Department of Defense Networked Virtual Environments 20 SIMNET 20SIMNET 20 Distributed Interactive.

the confines of whatever chain of command was imposed on the simulation participants. SIMNET Architecture Computer Image Generation Software Other-Vehicle State Table Network Interface Software Sound Generation Software Own-Vehicle Dynamics Control and Interface Software Local area network SIMNET The SIMNET network software architecture has three basic components: An object-event architecture,An object-event architecture, A notion of autonomous simulation nodes, andA notion/


Wireless vs. mobile S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks1 Contents WLAN vs. 2G/3G Performance, roaming, mobility, security...

) 170 kbit/s theoretically (in practice much less) Up to 2 Mbit/s (in indoor networks) Wireless vs. mobile S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks3 WLAN vs. 2G/3G: Coverage IEEE 802.11 WLAN2G/3G Hundreds of meters (at best/E-mail server SenderRecepient 1 2 3 Wireless vs. mobile S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks17 Services: E-mail (2) WLAN and 2G/3G networks are equally well suited for this kind of task, since both transactions are of the/


1 Chapter One Introduction to Computer Networks and Data Communications.

/ microcomputer to mainframe Microcomputer to local area network Microcomputer to Internet Local area network to local area network Personal area network to workstation Chapter One - Introduction to Computer Networks And Data Communications 10 Computer Networks – Basic Connections Local area network to metropolitan area network Local area network to wide area network Sensor to local area network Satellite and microwave Wireless telephone and wired telephone to network Chapter One - Introduction to Computer/


Local Authorities & PPPs, PETA Y.Caloghirou, Prof NTUA, 22/5/2009 1 Implementation Schemes (including Public Private partnerships) for the Development.

Demand (training of human capital in ICTs, enhancement of ICT capabilities of SMEs, etc.)  Setting up a local effort for the diffusion of BB: a community drive to attract a critical mass Local Authorities & PPPs, PETA Y.Caloghirou, Prof NTUA, 22/5/2009 33 Metropolitan Area Networks 75 Municipalities except for Athens and Thessaloniki  Capital cities and other major cities of the Counties  4000/


KNOM Tutorial 2000 Integrated Management of Access Network Dec. 2000 Ho Chang Samsung Electronics.

2000 Samsung Electronics Co.,LTD 12 Central Office Central Office Customer Premise Customer Premise Curb Area Curb Area 2G DLC Network - UDLC Local Exchange PSTN Local Exchange IP N-NAS DLC KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 13/ 2000 Samsung Electronics Co.,LTD 14 Central Office Central Office Customer Premise Customer Premise Curb Area Curb Area 2G DLC Network - IDLC Local Exchange PSTN Local Exchange IP N-NAS DLC KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD /


Overview of Wireless Sensor Networks

.5 Project Transport standards associated with wireless data transport from IEEE 1073 point-of-care medical devices (POC) using personal area (WPAN), local area (WLAN), wide area (WWAN), and other networks It will make specific recommendations on the use of WPAN, WLAN, and WWAN wireless networks to facilitate medical data transport in various healthcare settings Specifically, technology protocols will be recommended to facilitate plug-and-play/


Network Layer 4-1 Chapter 4: Network Layer Chapter goals:  understand principles behind network layer services:  network layer service models  forwarding.

-138 Hierarchical OSPF boundary router backbone router Area 1 Area 2 Area 3 backbone area border routers internal routers Network Layer 4-139 Hierarchical OSPF  two-level hierarchy: local area, backbone.  link-state advertisements only in area  each nodes has detailed area topology; only know direction (shortest path) to nets in other areas.  area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers.  backbone routers: run OSPF/


Chapter Seven Local Area Networks: Part 1

Approach Eighth Edition After reading this chapter, you should be able to: State the definition of a local area network List the primary function, activities, and application areas of a local area network Cite the advantages and disadvantages of local area networks Identify the physical and logical layouts (topologies) of local area networks Data Communications and Computer Networks: A Business Users Approach, Eighth Edition © 2016. Cengage Learning. All Rights Reserved. After reading this chapter/


Computers Are Your Future Twelfth Edition

Education, Inc. Publishing as Prentice Hall * Network Fundamentals Networks * Network Fundamentals 07/16/96 Networks Links multiple computer systems and enables them to share data and resources Types of computer networks: Local area network (LAN) Wide area network (WAN) Metropolitan area network (MAN) Campus area network (CAN) Personal area network (PAN Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall * Network Fundamentals LAN WAN MAN * Network Fundamentals 07/16/96 LAN Uses cables/


Chapter Seven Local Area Networks: The Basics

Approach Fifth Edition After reading this chapter, you should be able to: State the definition of a local area network List the primary function, activities, and application areas of a local area network Cite the advantages and disadvantages of local area networks Identify the physical and logical layouts (topologies) of local area networks Data Communications and Computer Networks: A Business Users Approach, Fifth Edition After reading this chapter, you should be able to (continued/


Small-World Brain Networks

also have been made in analysis of anatomical connectivity matrices, and proposed a new way to classify cortical areas either as highly specialized (locally clustered connections), or integrative (long distance connections; Spons and Zwi 2004). Network degree distribution The degree distribution of a complex network (natural network) potentially provides an important clue to the processes constraining it’s formation and growth. An example for that/


1 Chapter 1 Introduction to Computer Networks and Data Communications Data Communications and Computer Networks: A Business User’s Approach.

Communications and Computer Networks Chapter 1 Computer Networks - Basic Connections Computer terminal/microcomputer to mainframe computer Microcomputer to local area network Microcomputer to Internet Local area network to local area network Personal area network to workstation 9 Data Communications and Computer Networks Chapter 1 Computer Networks - Basic Connections Local area network to metropolitan area network Local area network to wide area network Sensor to local area network Satellite and microwave/


Chapter 1: Introduction to Computer Networks and Data Communications.

gear 9 The Big Picture of Networks (continued) 10 Computer Networks - Basic Configurations Computer terminal/microcomputer to mainframe computer Microcomputer to local area network Microcomputer to Internet Local area network to local area network Personal area network to workstation 11 Computer Networks – Basic Configurations (continued) Local area network to metropolitan area network Local area network to wide area network Sensor to local area network Satellite and microwave Wireless telephone and/


IEEE NJ Coast Section Seminar on Wireless LAN & IP Telephony Session W3 Toward 4G Networks Ramachandran Ramjee, Ph.D.

on Wireless LAN & IP Telephony Other wireless standards  802.11/802.11b - 2-11 Mbps - uses 2.4GHz spectrum  802.11a - 54 Mbps - Orthogonal Frequency Division Multiplexing (OFDM)  HiperLan2 - 50Mbps - local-area networks - uses 5GHz spectrum  Bluetooth - 720 kbps - very limited range using 2.4GHz spectrum  ARDIS - 19.2 Kbps - IBM/Motorola - slotted CSMA  MOBITEX - 9.6 Kbps - RAM mobile-slotted CSMA  CDPD/


ECE544: Communication Networks-II Spring 2009 Hang Liu Lecture 5 Includes teaching materials from D. Raychaudhuri, L. Peterson.

protocol, eBGP Each AS has: –one or more border routers –one BGP speaker that advertises: local networks other reachable networks (transit AS only) gives path information Choices Link state or distance vector? –no universal metric -/Area AS divided into routing areas in OSPF, another level of hierarchy for routing scalability Area 0.0.0.0: Backbone area, All other areas are connected to it, and inter-area routing happens via routers connected to the backbone area and to their own associated areas. Stub area/


DOLCLAN - Distributed Objects in Loose Coupled Local Area Networks 1 DOLCLAN Distributed Objects in Loose Coupled Local Area Networks.

DOLCLAN - Distributed Objects in Loose Coupled Local Area Networks 1 DOLCLAN Distributed Objects in Loose Coupled Local Area Networks DOLCLAN - Distributed Objects in Loose Coupled Local Area Networks2 Agenda 1: Motivation Concept 2: Language support System design 3: Evaluation StatusConclusion 4:Questions and discussion DOLCLAN - Distributed Objects in Loose Coupled Local Area Networks3 Motivation  We are moving from single peer applications to multi peer applications  Pervasive applications involve /


1 Chapter 8 Communication Networks and Services The TCP/IP Architecture The Internet Protocol IPv6 Transport Layer Protocols Internet Routing Protocols.

, “route d”, distributed in BSD UNIX Uses the distance-vector algorithm Runs on top of UDP, port number 520 Metric: number of hops Max limited to 15 suitable for small networks (local area environments) value of 16 is reserved to represent infinity small number limits the count-to-infinity problem Routing Information Protocol (RIP) 131 RIP Operation Router sends update message to neighbors/


Upcoming Requirements from the US Law Enforcement Community to Technically Facilitate Network Wiretaps TERENA, Lyngby Denmark Tuesday, May 22nd, 2007 4-5:30PM.

like cable modem connections and fiber-to-the-home services). In the case of higher education, however, it is routine to see far faster connections, including: -- 100/1000Mbps on the local area network and -- speeds up to 10Gbps to Internet2 or to the regular Internet Because these speeds exceed the speeds which are commonly/affordably available to LE via the commodity Internet, there/


Data Communications & Computer Networks, Second Edition1 Chapter 1 Introduction to Computer Networks and Data Communications.

Configurations Computer terminal-to-mainframe computer Microcomputer-to-mainframe computer Microcomputer-to-local area network Microcomputer-to-Internet Local area network-to-local area network Data Communications & Computer Networks, Second Edition9 Computer Networks - Basic Configurations Local area network-to-metropolitan area network Personal area network-to-workstation Local area network-to-wide area network Sensor-to-local area network Satellite and microwave Wireless telephone and wired telephone-to/


Chapter Seven Local Area Networks: The Basics Data Communications and Computer Networks: A Business User’s Approach Sixth Edition.

Approach, Sixth Edition2 After reading this chapter, you should be able to: State the definition of a local area network List the primary function, activities, and application areas of a local area network Cite the advantages and disadvantages of local area networks Identify the physical and logical layouts (topologies) of local area networks Data Communications and Computer Networks: A Business Users Approach, Sixth Edition3 After reading this chapter, you should be able to (continued/


Chapter 7 Local Area Networks: The Basics

User’s Approach Chapter 7 Local Area Networks: The Basics Lesson Objectives Data Communications and Computer Networks Chapter 7 Lesson Objectives State the definition of a local area network List the functions and application areas of a local area network Cite the advantages and disadvantages of local area network topologies Identify the physical and logical local area network topologies Specify the different medium access control techniques Describe the common local area network systems, such as Ethernet/


4: Network Layer1 Chapter 4 Network Layer Computer Networking: A Top Down Approach Featuring the Internet, 3 rd edition. Jim Kurose, Keith Ross Addison-Wesley,

topology database as OSPF Hierarchical OSPF in large domains. 4: Network Layer101 Hierarchical OSPF 4: Network Layer102 Hierarchical OSPF Two-level hierarchy: local area, backbone. –Link-state advertisements only in area –each node has detailed area topology; only knows direction (shortest path) to nets in other areas. Area border routers: “summarize” distances to nets in own area, advertise to other Area Border routers. Backbone routers: run OSPF routing limited to/


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