INTERNETWORKING: CONCEPTS, ARCHITECTURE AND PROTOCOL
|
|
|
- Delilah Strickland
- 5 years ago
- Views:
Transcription
1 Lecture Handout Computer Networks Lecture No. 23 CHAPTER 17 INTERNETWORKING: CONCEPTS, ARCHITECTURE AND PROTOCOL THE MOTIVATION FOR INTERNETWORKING: There is no single networking technology that is best for all needs. A large organization with diverse networking requirements needs multiple physical networks. If the organization chooses the type of network that is best for each task, the organization will need several types of networks. The interconnection of two or more networks, usually local area networks so that data can pass between hosts on the different networks as though they were one network, this requires some kind of Router or Gateway, which led to the motivation for internetworking. THE CONCEPT OF UNIVERSAL SERVICE: The chief problems with multiple networks are as follows: A computer attached to a given network can only communicate with other computers attached to the same network. In the 1970s large organizations began to acquire multiple networks. Each network in the organization formed island. Employees needed to choose a computer appropriate for each task. So they needed multiple screens, keyboards and computers. UNIVERSAL SERVICES: A communication system that supplies universal services allows arbitrary pairs of computers to communicate. Universal service is desirable because it increases individual productivity. Page 1of 5
2 UNIVERSAL SERVICES IN A HETEROGENEOUS WORLD: Although universal service is highly desirable incompatibilities among network hardware and physical addressing prevent an organization from building a bridged network that includes arbitrary technologies. Extension techniques such as bridging cannot be used with heterogeneous network because of incompatible packet formats. INTERNETWORKING: Despite the incompatibilities among networks, researchers have devised a scheme that provides universal service among heterogeneous networks called internetworking. It uses both hardware and software. PHYSICAL NETWORK CONNECTION WITH ROUTERS: A router is a special purpose system dedicated to the task of interconnecting networks. A router can interconnect networks that use different technologies including different media, physical addressing schemes or frame formats. A router connecting two physical networks is shown in the figure below. Figure 23.1 INTERNET ARCHITECTURE: Organization seldom uses a single router to connect its entire network for two reasons. Because the router must forward each packet, the processor in a given router is insufficient to handle the traffic. Redundancy improved Internet reliability. An Internet consists of a set of networks interconnected by routers. The Internet scheme allows each organization to choose the number and type of network, the number of routers to use to interconnect them, and the exact interconnection topology. Three routers connecting four networks in series is shown in the figure below. Page 2of 5
3 Figure 23.2 ACHIEVING UNIVERSAL SERVICES: The goal of internetworking is universal service across heterogeneous networks. To provide this service all computers, and routers must agree to forward information from a source on one network to a specified destination. The task is complicated as frame formats and addressing schemes may differ. The key of achieving universal service is universal protocol software (TCP/IP). A virtual network is shown in the figure that TCP/IP software provides to users and applications. Figure 23.3 Page 3of 5
4 LAYERING AND TCP/IP PROTOCOLS: TCP/IP protocols are organized into five conceptual layers. Although some layers of the TCP/IP reference model correspond to layers of the ISO reference model, the ISO layers scheme does not have a layer that corresponds to TCP/IP Internet Layer. TCP/IP reference model is shown in the figure below. Figure 23.4 LAYER 1: Corresponds to basic network hardware layer in OSI. LAYER 2: LAYER 3: LAYER 4: LAYER 5: Specifies how to organize data in frames. Specifies the format of packets sent across an Internet and forwards packets. Specifies how to ensure reliable transfer. Like 6 and 7 in OSI model, it specifies how one application uses an Internet. Page 4of 5
5 HOST COMPUTERS, ROUTERS AND PROTOCOL LAYERS: TCP/IP defines the term host computer to refer to any computer system that connects to an Internet and runs applications. A TCP/IP protocol makes it possible for any pair of hosts to communicate despite hardware differences. Both host and routers need TCP/IP protocol software but routers do not need layer 5 protocols for applications, as they do not run applications. Page 5of 5
PART IV. Internetworking Using TCP/IP
PART IV Internetworking Using TCP/IP Internet architecture, addressing, binding, encapsulation, and protocols in the TCP/IP suite Chapters 20 Internetworking: Concepts, Architecture, and Protocols 21 IP:
Chapter Motivation For Internetworking
Chapter 17-20 Internetworking Part 1 (Concept, IP Addressing, IP Routing, IP Datagrams, Address Resolution 1 Motivation For Internetworking LANs Low cost Limited distance WANs High cost Unlimited distance
Motivation For Networking. Information access Interaction among cooperative application programs Resource sharing
Motivation For Networking Information access Interaction among cooperative application programs Resource sharing CS422 -- PART 1 13 2003 Practical Results E-mail File transfer/access Web browsing Remote
PART X. Internetworking Part 1. (Concept, IP Addressing, IP Routing, IP Datagrams, Address Resolution)
PART X Internetworking Part 1 (Concept, IP Addressing, IP Routing, IP Datagrams, Address Resolution) CS422 Part 10 1 Spring 1999 Motivation For Internetworking LANs Low cost Limited distance WANs High
ES623 Networked Embedded Systems
ES623 Networked Embedded Systems Introduction to Network models & Data Communication 16 th April 2013 OSI Models An ISO standard that covers all aspects of network communication is the Open Systems Interconnection
Chapter 3 Protocols and the TCP/IP Suite
Chapter 3 Protocols and the TCP/IP Suite 3.1 The Need for a Protocol Architecture need for a standard communication tasks by layers architecture peer protocol: a set of rules or conventions to exchange
Osi Reference Model And Explain The Various Layers And Its Applications
Osi Reference Model And Explain The Various Layers And Its Applications OSI Reference model describes networking concept in seven layers. All applications and utilities that communicate with network fall
LANs do not normally operate in isolation. They are connected to one another or to the Internet. To connect LANs, connecting devices are needed.
LAN interconnecting devices INTRODUCTION LANs do not normally operate in isolation. They are connected to one another or to the Internet. To connect LANs, connecting devices are needed. Connecting devices
Network Models. Presentation by Dr.S.Radha HOD / ECE SSN College of Engineering
Network Models Presentation by Dr.S.Radha HOD / ECE SSN College of Engineering Objective At the end of this section students will be able to Understand the architecture of the OSI model Understand the
Chapter 2 Network Models 2.1
Chapter 2 Network Models 2.1 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 2.2 2-1 LAYERED TASKS We use the concept of layers in our daily life. As an example,
The OSI Model. Open Systems Interconnection (OSI). Developed by the International Organization for Standardization (ISO).
Network Models The OSI Model Open Systems Interconnection (OSI). Developed by the International Organization for Standardization (ISO). Model for understanding and developing computer-to-computer communication
Part 4: Internetworking Using TCP/IP
Part 4: Internetworking Using Internet architecture Addressing Binding Encapsulation protocol suite Internetworking and IP Addressing Gail Hopkins 1 Introduction Motivation Architecture Introduction to
We are going to see a basic definition of the devices you can find in a corporate wired network, so you can understand basic IT engineering jargon.
Computer network devices, also known as communication devices, are the backbone of a data communication network. In this category we can find routers, switches, hubs, LAN cards, gateways, modems, hardware
CN [Network Devices]
![CN [Network Devices]](/thumbs/83/88538687.jpg "CN [Network Devices]")
Q`.1 Explain Repeater. A repeater is a device that operates only at the PHYSICAL layer. A repeater can be used to increase the length of the network by put the effect on the signal. It connects two segments
Computer Science Department 2 nd semester- Lecture13
Network Devices: The network devices (connecting devices) are divided into five different categories based on the layer in which they operate in a network. NIC (Network Interface Card) is used to enable
Kent State University
CS 4/54201 Computer Communication Network Kent State University Dept. of Computer Science www.mcs.kent.edu/~javed/class-net06f/ 1 A Course on Networking and Computer Communication LECT-9, S-2 Internet
03 The Internet Model and TCP/IP
SE 4C03 Winter 2003 03 The Internet Model and TCP/IP Instructor: W. M. Farmer Revised: 16 January 2003 1 The OSI Model In 1977 the International Standards Organization (ISO) offered the Open Systems Interconnection
Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS
INTRODUCTION TO COMPUTER NETWORKS Computer Networks Computer network connects two or more autonomous computers. The computers can be geographically located anywhere. LAN, MAN & WAN Network in small geographical
Lecture 2. Computer Networks Models. Network Models 1-1
Lecture 2 Computer Networks Models Network Models 1-1 Agenda Introduction to the Internet Reference Models for Computer Networks The OSI Model The TCP/IP Model Network Models 1-2 Announcements Bonus -
CCM 4300 Lecture 6 Computer Networks, Wireless and Mobile Communications. Dr Shahedur Rahman. Room: T115
CCM 4300 Lecture 6 Computer Networks, Wireless and Mobile Communications Dr Shahedur Rahman s.rahman@mdx.ac.uk Room: T115 1 Recap of Last Session Access Control ALOHA FDMA, TDMA, CDMA OSI Model Internetworking
Computer Networks 1DV201
Computer Networks 1DV201 1 Link to coursepage http://w3.msi.vxu.se/users/ofl/1dv201/index.html 2 Chapter 1-3 Introduction 3 Topic and Scope Computer networks and internets: an overview of concepts, terminology,
Chapter 3 Part 2 Switching and Bridging. Networking CS 3470, Section 1
Chapter 3 Part 2 Switching and Bridging Networking CS 3470, Section 1 Refresher We can use switching technologies to interconnect links to form a large network What is a hub? What is a switch? What is
Introduction to LAN Protocols
CHAPTER 2 Introduction to LAN Protocols This chapter introduces the various media-access methods, transmission methods, topologies, and devices used in a local area network (LAN). Topics addressed focus
Network Layer. Goals of This Lecture. Internet Reference Model. Outline of the Class
Goals of This Lecture Network Layer Kuang Chiu Huang TCM NCKU Through the lecture and in-class discussion, students are enabled to describe role and functions of the network layer, and compare different
LESSON PLAN. 1. William Stallings, (2006), Data and Computer Communication,7thEdition,
LESSON PLAN Subject Title : DATA COMMUNICATION AND NETWORKS Class : III BSc Computer Science Subject Code: UCS15503 Staff: PARIMALA S and MR Sudha Semester Course Code VI UCS15503 DATA COMMUNICATION AND
Mixed-Media Bridging
CHAPTER 31 Mixed-Media Bridging Background Transparent bridges are found predominantly in Ethernet networks, and source-route bridges (SRBs) are found almost exclusively in Ring networks. For more information
Objectives. Network Structure. Network Structure
2007 Cisco Systems, Inc. All rights reserved. Cisco Public Objectives Communicating over the Network Network Fundamentals Chapter 2 Chapter 1 1 Describe the structure of a network, including the devices
6.1.2 Repeaters. Figure Repeater connecting two LAN segments. Figure Operation of a repeater as a level-1 relay
6.1.2 Repeaters A single Ethernet segment can have a maximum length of 500 meters with a maximum of 100 stations (in a cheapernet segment it is 185m). To extend the length of the network, a repeater may
Network Reference Models
Network Reference Models LECTURE (2) Network Reference Models A framework (guideline) for network implementation and troubleshooting. Divides complex functions into simpler components. Importance of reference
IP Routing. Bharat S. Chaudhari International Institute of Information Technology Pune, India
IP Routing Bharat S. Chaudhari International Institute of Information Technology Pune, India June 21, 2005 Network Devices: Ø The networking and internetworking devices are divided in the following categories:
Top-Down Network Design
Top-Down Network Design Chapter Seven Selecting Switching and Routing Protocols Original slides by Cisco Press & Priscilla Oppenheimer Selection Criteria for Switching and Routing Protocols Network traffic
Chapter 10: Planning and Cabling Networks
Chapter 10: Planning and Cabling Networks Before using an IP phone, accessing instant messaging, or conducting any number of other interactions over a data network, we must connect end devices and intermediary
CS610 Computer Network Final Term Papers Solved MCQs with reference by Virtualians Social Network
CS610 Computer Network Final Term Papers Solved MCQs with reference by Virtualians Social Network Question No: 1( M a r k s: 1 ) A ---------- Relies on the hardware manufacturer to assign a unique physical
The Spanning Tree Protocol
Università Ca Foscari di Venezia Dipartimento di Informatica Corso di Sistemi Distribuiti 2009 Presentation outline Introduction 1 Introduction Local internetworking Motivations 2 High level description
Module 1. Introduction. Version 2, CSE IIT, Kharagpur
Module 1 Introduction Version 2, CSE IIT, Kharagpur Introduction In this module we shall highlight some of the basic aspects of computer networks in two lessons. In lesson 1.1 we shall start with the historical
Internet Architecture and Experimentation
Internet Architecture and Experimentation Today l Internet architecture l Principles l Experimentation A packet switched network Modern comm. networks are packet switched Data broken into packets, packet
DATA COMMUNICATIONS MANAGEMENT. Gilbert Held INSIDE
51-10-06 DATA COMMUNICATIONS MANAGEMENT VIRTUAL LANS Gilbert Held INSIDE Definition, Rationale, Support for Virtual Networking Requirements, Facilitating Adds, Moves, and Changes, Enhancing Network Performance,
Chapter 6 Connecting Device
Computer Networks Al-Mustansiryah University Elec. Eng. Department College of Engineering Fourth Year Class Chapter 6 Connecting Device 6.1 Functions of network devices Separating (connecting) networks
Top-Down Network Design, Ch. 7: Selecting Switching and Routing Protocols. Top-Down Network Design. Selecting Switching and Routing Protocols
Top-Down Network Design Chapter Seven Selecting Switching and Routing Protocols Copyright 2010 Cisco Press & Priscilla Oppenheimer 1 Switching 2 Page 1 Objectives MAC address table Describe the features
Area Covered is small Area covered is large. Data transfer rate is high Data transfer rate is low
Chapter 15 Networking Concepts 1. Define networking. It is the interconnection of independent computing devices for sharing of information over shared medium. 2. What is the need for networking? / What
Networks Hardware Components
Lec. 5 Networks Hardware Components Dr. Eng. Samy Elmokadem Chapter 8 10/12/2017 1 internetworking devices used in backbone networks After studying this Chapter you should: Know which internetworking devices
Mixed-Media Bridging. Chapter Goals. Background. Translation Challenges CHAPTER
24 CHAPTER Chapter Goals Understand bridging in a mixed Ethernet and Token Ring environment. Describe the differences between source-route transparent and translational bridging. List some of the challenges
Wired internetworking devices. Unit objectives Differentiate between basic internetworking devices Identify specialized internetworking devices
Wired internetworking devices Unit objectives Differentiate between basic internetworking devices Identify specialized internetworking devices Topic A Topic A: Basic internetworking devices Topic B: Specialized
Lecture (01) Determining IP Routes (1)
Lecture (01) Determining IP Routes (1) By: Dr. Ahmed ElShafee ١ Dr. Ahmed ElShafee, ACU : Fall 2016, Practical App. Networks II Overview Routing is the process of determining where to send data packets
CCM 4300 Lecture 5 Computer Networks, Wireless and Mobile Communications. Dr Shahedur Rahman. Room: T115
CCM 4300 Lecture 5 Computer Networks, Wireless and Mobile Communications Dr Shahedur Rahman s.rahman@mdx.ac.uk Room: T115 1 Recap of Last Session Described the physical layer Analogue and Digital signal
LAN Interconnection. different interconnecting devices, many approaches Vasile Dadarlat- Local Area Computer Networks
LAN Interconnection different interconnecting devices, many approaches 1 Need for ability to expand beyond single LAN; appears concept of Extended LAN, extending the number of attached stations and maximum
ISO/OSI Model and Collision Domain NETWORK INFRASTRUCTURES NETKIT - LECTURE 1 MANUEL CAMPO, MARCO SPAZIANI
ISO/OSI Model and Collision Domain NETWORK INFRASTRUCTURES NETKIT - LECTURE 1 MANUEL CAMPO, MARCO SPAZIANI ISO/OSI Model ISO: International Organization for Standardization OSI: Open Systems Interconnection
QUESTION BANK UNIT-I
DEPARTMENT OF INFORMATION TECHNOLOGY QUESTION BANK Subject Code: CS1302 Subject Name: Computer Networks Year/ Sem: III / V UNIT-I 1. What is multicast? What is the difference between unicast and multicast?
Computer Hardware and System Software Concepts
Computer Hardware and System Software Concepts Introduction to concepts of Operating System (Device Management) Welcome to this course on Computer Hardware and System Software Concepts 1 RoadMap Introduction
Prepared by Agha Mohammad Haidari Network Manager ICT Directorate Ministry of Communication & IT
Network Basics Prepared by Agha Mohammad Haidari Network Manager ICT Directorate Ministry of Communication & IT E-mail :Agha.m@mcit.gov.af Cell:0700148122 After this lesson,you will be able to : Define
Routing Basics. What is Routing? Routing Components. Path Determination CHAPTER
CHAPTER 5 Routing Basics This chapter introduces the underlying concepts widely used in routing protocols Topics summarized here include routing protocol components and algorithms In addition, the role
The History and the layers of the OSI Model 30 - October
THE OSI MODEL Established in 1947, the International Standards Organization (ISO) is a multinational body dedicated to worldwide agreement on international standards. An ISO standard that covers all aspects
Point-to-Point Network Switching. Computer Networks Term B10
Point-to-Point Network Switching Computer Networks Term B10 Network Switching Outline Circuit Switching, Message Switching, Packet Switching, Cell Switching Connection-Oriented versus Connectionless Protocols
Chapter 12. Network Organization and Architecture. Chapter 12 Objectives Introduction Introduction
Chapter 12 Objectives Chapter 12 Network Organization and Architecture Become familiar with the fundamentals of network architectures. Be able to describe the ISO/OSI reference model and the TCP/IP standard.
Packet Tracer - Explore a Network
Topology Objectives Part 1: Examine Internetwork Traffic at Branch Part 2: Examine Internetwork Traffic to Central Part 3: Examine Internet Traffic from Branch Background This simulation activity is intended
Data Encapsulation & OSI & TCP/IP Models Week 2. Lecturer: Lucy White Office : 324
Data Encapsulation & OSI & TCP/IP Models Week 2 Lecturer: Lucy White lbwhite@wit.ie Office : 324 1 Network Protocols A protocol is a formal description of a set of rules and conventions that govern a particular
Computer Network Fundamentals (IT 221)
Computer Network Fundamentals (IT 221) أساسيات شبكات الحاسب Business Applications: Lecture 1: Computer network: collection of autonomous computers interconnected by a single technology. Goals: sharing
Switching on our smartphone and sending an to a friend living 5000 km from our home is something that we take for granted, but that involves a
Switching on our smartphone and sending an email to a friend living 5000 km from our home is something that we take for granted, but that involves a lot of very complex processes and has to take into account
Chapter 2 Network Models 2.1
Chapter 2 Network Models 2.1 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 2-1 LAYERED TASKS We use the concept of layers in our daily life. As an example,
TCP/IP and the OSI Model
TCP/IP BASICS TCP/IP and the OSI Model TCP/IP BASICS The network protocol of the Internet Composed of six main protocols IP Internet Protocol UDP User Datagram Protocol TCP Transmission Control Protocol
Additional Slides (Basics) Intermediate Systems
Automation Systems Discrete Event Control Systems and Networked Automation Systems Additional Slides (Basics) Intermediate Systems Outline Building Larger (and more Reliable) Networks: Intermediate Systems
Introduction. Communication
Introduction These slides are created by Dr. Yih Huang of George Mason University. Students registered in Dr. Huang's courses at GMU can make a single machine-readable copy and print a single copy of each
2012 Fall CS HW#7 True/False Multiple Choices
2012 Fall CS HW#7 True/False 1. True or False? Data transfer rate is the speed with which data is moved from one place on the network to another. 2. True or False? In the client/server model, a user may
Guide to Networking Essentials, 6 th Edition. Chapter 6: Network Reference Models and Standards
Guide to Networking Essentials, 6 th Edition Chapter 6: Network Reference Models and Standards Objectives Explain the OSI reference model layers and their relationship to hardware and software Explain
UNIT 1. Advantages of Computer Networks
UNIT 1 COMPUTER NETWORKS :- A Network is a set of devices or nodes connected by media links.a node can be a computer, printer,scanner,voip phone etc.computer network means an interconnected collection
Internetworking. from the Webopedia Computer Dictionary
Internetworking The art and science of connecting individual local-area networks (LANs) to create wide-area networks (WANs), and connecting WANs to form even larger WANs. Internetworking can be extremely
Planning for Information Network
Planning for Information Network Lecture 8: Network Routing Protocols Assistant Teacher Samraa Adnan Al-Asadi 1 Routing protocol features There are many ways to characterize routing protocols, including
OSI Network Layer. Network Fundamentals Chapter 5. Version Cisco Systems, Inc. All rights reserved. Cisco Public 1
OSI Network Layer Network Fundamentals Chapter 5 Version 4.0 1 Objectives Identify the role of the Network Layer, as it describes communication from one end device to another end device. Examine the most
Logical Network Design (Part II)
Logical Network Design (Part II) DCS COMSATS Institute of Information Technology Rab Nawaz Jadoon Assistant Professor COMSATS IIT, Abbottabad Pakistan Telecommunication Network Design (TND) Possible (Part
Revision of Previous Lectures
Lecture 15 Overview Last Lecture Local area networking This Lecture Wide area networking 1 Source: chapters 8.1-8.3, 17.1, 18.1, 18.2 Next Lecture Wide area networking 2 Source: Chapter 20 COSC244 Lecture
Open Shortest Path First (OSPF)
CHAPTER 42 Open Shortest Path First (OSPF) Background Open Shortest Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the interior gateway protocol (IGP) working
SUBJECT: DATA COMMUNICATION AND NETWORK SEMESTER: V SEMESTER COURSE: BCA SUBJECT TEACHER: Dr.K.Chitra Assistant Professor, Department of Computer
SUBJECT: DATA COMMUNICATION AND NETWORK SEMESTER: V SEMESTER COURSE: BCA SUBJECT TEACHER: Dr.K.Chitra Assistant Professor, Department of Computer Science Chapter - 2 Switching and Network Architecture
OSI Data Link Layer. Network Fundamentals Chapter 7. Version Cisco Systems, Inc. All rights reserved. Cisco Public 1
OSI Data Link Layer Network Fundamentals Chapter 7 Version 4.0 1 Objectives Explain the role of Data Link layer protocols in data transmission. Describe how the Data Link layer prepares data for transmission
Introduction to Computer Networks. CS 166: Introduction to Computer Systems Security
Introduction to Computer Networks CS 166: Introduction to Computer Systems Security Network Communication Communication in modern networks is characterized by the following fundamental principles Packet
Network Devices Introduction into Network Devices
Network Devices Introduction into Network Devices Aims Gain a knowledge about network devices. Discuss what network devices are required to create a basic network Draw a bespoke network drawing using Visio
TCP/IP stack is the family of protocols that rule the current internet. While other protocols are also used in computer networks, TCP/IP is by far
TCP/IP stack is the family of protocols that rule the current internet. While other protocols are also used in computer networks, TCP/IP is by far the most common of them. TCP/IP can be compared to the
Open Systems Interconnection (OSI) Routing Protocol
CHAPTER 41 Open Systems Interconnection (OSI) Protocol Background The International Organization for Standardization (O) developed a complete suite of routing protocols for use in the Open Systems Interconnection
Navpreet Singh INTRODUCTION TO COMPUTER NETWORKS. Computer Centre Indian Institute of Technology Kanpur Kanpur INDIA
INTRODUCTION TO COMPUTER NETWORKS Navpreet Singh Computer Centre Indian Institute of Technology Kanpur Kanpur INDIA (Ph : 2597371, Email : navi@iitk.ac.in) About Myself About Myself I am Network Manager
Layer 2 functionality bridging and switching
Layer 2 functionality bridging and switching BSAD 141 Dave Novak Sources: Network+ Guide to Networks, Dean 2013 Overview Layer 2 functionality Error detection Bridges Broadcast and collision domains How
Switching & ARP Week 3
Switching & ARP Week 3 Module : Computer Networks Lecturer: Lucy White lbwhite@wit.ie Office : 324 Many Slides courtesy of Tony Chen 1 Ethernet Using Switches In the last few years, switches have quickly
Module 1. Computer Communications and Networking
Module 1 Computer Communications and Networking Topic Covered 1. 7 layer model for computer communications 2. Network topologies 3. Network bearers 4. LANs and WANs 5. CSMA and token protocols 6. Networking
LAN Overview (part 2) Interconnecting LANs - Hubs
LAN Overview (part 2) CSE 3213 Fall 2011 1 November 2011 Interconnecting LANs - Hubs active central element of star layout each station connected to hub by two UTP lines hub acts as a repeater limited
Addressed An addressed message is meant for only a single node. Contrast global.
OpenLCB Technical Note Glossary Feb 6, 2016 Adopted 1 Introduction This glossary provides working definitions and commentary on definitions for OpenLCB. It is not normative in any way. We provide a separate
KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B
KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT TITLE: DATACOMMUNICATION COURSE CODE: 223 SECTION A: 30 Marks ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B TIME ALLOWED:
Growth. Individual departments in a university buy LANs for their own machines and eventually want to interconnect with other campus LANs.
Internetworking Multiple networks are a fact of life: Growth. Individual departments in a university buy LANs for their own machines and eventually want to interconnect with other campus LANs. Fault isolation,
Applied Computer Networks. Introduction (2 nd Edition) John Morton
Applied Computer Networks Introduction (2 nd Edition) John Morton Fred Halsall Some Books Computer Networking and the Internet 5 th Ed, Addison-Wesley, 2005. James Kurose and Keith Ross Computer Networking
Telematics I. Chapter 6 Internetworking. (Acknowledement: These slides have been compiled from H. Karl s set of slides)
Telematics I Chapter 6 Internetworking (Acknowledement: These slides have been compiled from H. Karl s set of slides) 1 Goals of This Chapter So far: we can communicate between nodes all connected directly
Switched Ethernet Virtual LANs
Switched Ethernet Virtual LANs Computer Networks Lecture 4 http://goo.gl/pze5o8 Switched Ethernet 2 LAN Switches Behave as bridges (operates in the logical tree topology) Switching is implemented by hardware
UNIT III NETWORK LAYER 1. What are the network support layers and the user support layers? Network support layers: The network support layers are Physical layer, Data link layer and Network layer. These
Introductions. Computer Networking Lecture 01. January 16, HKU SPACE Community College. HKU SPACE CC CN Lecture 01 1/36
Introductions Computer Networking Lecture 01 HKU SPACE Community College January 16, 2012 HKU SPACE CC CN Lecture 01 1/36 Outline What is a Computer Network? Basic Requirements of Building a Computer Network
Transfer of data from one device to another via some form of transmission medium.
Overview of Data Communication and Computer Networks Data Communications Asst. Prof. Mahdi Abbasi, Ph.D. abbasi@basu.ac.ir i Computer Engineering Department Bu-Ali Sina University 1 Outline Data Communication
Chapter 15 Networks. Chapter Goals. Networking. Chapter Goals. Networking. Networking. Computer network. Node (host) Any device on a network
Chapter Goals Chapter 15 Networks Describe the core issues related to computer networks List various types of networks and their characteristics Explain various topologies of local-area networks Explain
Computer Networks Security: intro. CS Computer Systems Security
Computer Networks Security: intro CS 166 - Computer Systems Security A very easy network 3/14/16 Computer Networks: Intro 2 Two philosophers example Translator Language Translator Engineer Communication
Lecture 7. Reminder: Homework 2, Programming Project 1 due today. Homework 3, Programming Project 2 out, due Thursday next week. Questions?
Lecture 7 Reminder: Homework 2, Programming Project 1 due today. Homework 3, Programming Project 2 out, due Thursday next week. Questions? Thursday, September 15 CS 475 Networks - Lecture 7 1 Outline Chapter
Reti di Calcolatori I
Reti di Calcolatori I Prof. Roberto Canonico Dipartimento di Ingegneria Elettrica e delle Tecnologie dell Informazione Corso di Laurea in Ingegneria delle Telecomunicazioni Corso di Laurea in Ingegneria
E-Commerce. Infrastructure I: Computer Networks
E-Commerce Infrastructure I: Computer Networks Almost all computers today are networked or part of a distributed system. I will provide an overview of networking and a basic description of network technology.
Data Communication. Introduction
Data Communication Introduction Course Information Assistant Instructor Reza Hassanpour Faris Serdar Taşel Office: L214 Office: L205 Phone: 2331338 Phone: 2331357 Email: reza@cankaya.edu.tr Email: fst@cankaya.edu.tr
QUESTION: 1 When limit-learning is configured on a port and the limit is reached the following traffic still flows to the port.
QUESTION: 1 When limit-learning is configured on a port and the limit is reached the following traffic still flows to the port. A. Packets destined for the active Mac addresses B. Broadcast traffic C.
Objectives. Upon completion you will be able to: Understand how the Internet came into being
Chapter 1 Objectives Upon completion you will be able to: Understand how the Internet came into being Understand the meaning of the terms protocol and standard Understand the various organizations involved
Introduction to LAN Protocols
CHAPTER 2 Chapter Goals Learn about different LAN protocols. Understand the different methods used to deal with media contention. Learn about different LAN topologies. This chapter introduces the various