Presentation is loading. Please wait.

Presentation is loading. Please wait.

OV 1 - 1 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Theory  Networking Terminology  Network Categories  Standard Network.

Published byShawn Maxwell Modified over 9 years ago

Similar presentations

Presentation on theme: "OV 1 - 1 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Theory  Networking Terminology  Network Categories  Standard Network."— Presentation transcript:

1 OV 1 - 1 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Theory  Networking Terminology  Network Categories  Standard Network Models  Physical Network Topologies  Logical Network Topologies

2 OV 1 - 2 Copyright © 2013 Logical Operations, Inc. All rights reserved. Computer Networks Computers connect to communicate and share resources

3 OV 1 - 3 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Components Network ComponentDescription Device Hardware such as computers, servers, printers, fax machines, switches, and routers. Physical media Media that connects devices to a network and transmits data between the devices. Network adapterHardware that translates data between the network and a device. Network operating system Software that controls network traffic and access to common network resources.

4 OV 1 - 4 Copyright © 2013 Logical Operations, Inc. All rights reserved. Nodes Redistribution point Endpoints Switch

5 OV 1 - 5 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Network Backbone Backbone

6 OV 1 - 6 Copyright © 2013 Logical Operations, Inc. All rights reserved. Types of Network Backbones Network BackboneDescription Serial Consists of multiple switches connected by one backbone cable. Typically not scaled for enterprise-wide use. Distributed/ hierarchical Consists of multiple switches connected serially to hubs or routers. Due to their hierarchical structure, these networks can be easily expanded without a significant cost impact. CollapsedUses a router or switch as the nexus for several subnetworks. Parallel Suits enterprise-wide applications. Like the collapsed backbone network, the parallel backbone network uses a central router or switch but augments the dependent switches with multiple cable connections.

7 OV 1 - 7 Copyright © 2013 Logical Operations, Inc. All rights reserved. Servers General purpose Dedicated Server 2Server 1 Client 1Client 2

8 OV 1 - 8 Copyright © 2013 Logical Operations, Inc. All rights reserved. Clients Server Client 1Client 2 Maintains resources and performs its own processing

9 OV 1 - 9 Copyright © 2013 Logical Operations, Inc. All rights reserved. Peer Computers Peer 1 Peer 2 Peer 3 Acts as both client and server Acts as both client and server

10 OV 1 - 10 Copyright © 2013 Logical Operations, Inc. All rights reserved. Host Computers Client 1 Host Client 2 Provides processing and storage capabilities Provides processing and storage capabilities

11 OV 1 - 11 Copyright © 2013 Logical Operations, Inc. All rights reserved. Terminals Terminal Host Client No processor or memory No processor or memory

12 OV 1 - 12 Copyright © 2013 Logical Operations, Inc. All rights reserved. LANs Nodes connected with cables

13 OV 1 - 13 Copyright © 2013 Logical Operations, Inc. All rights reserved. WANs Internet

14 OV 1 - 14 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Coverage Areas Network CategoryDescription MANCovers an area equivalent to a city or other municipality. CAN Covers an area equivalent to an academic campus or business park. A CAN is typically owned or used exclusively by an entity. PAN Connects two to three computers with cables and is most often seen in small or home offices. WPAN Connects wireless devices in very close proximity but not through a Wireless Access Point (WAP). Infrared and Bluetooth are some technologies used for connecting devices in a WPAN.

15 OV 1 - 15 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Internet 74.6.1.246209.116.88.4 131.107.2.6138.45.9.121 IP address

16 OV 1 - 16 Copyright © 2013 Logical Operations, Inc. All rights reserved. Intranets Internet Intranet 192.168.1.23 192.168.1.20 192.168.1.21 192.168.1.100 192.168.1.1 192.168.1.22

17 OV 1 - 17 Copyright © 2013 Logical Operations, Inc. All rights reserved. Extranets Client 1Client 2 Client 3 Clients access the organization’s resources Clients access the organization’s resources

18 OV 1 - 18 Copyright © 2013 Logical Operations, Inc. All rights reserved. Enterprise Networks LAN Remote User Network Operations Center Headquarters Branch Office Internet

19 OV 1 - 19 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Models Centralized Model

20 OV 1 - 20 Copyright © 2013 Logical Operations, Inc. All rights reserved. Segments Segment 1 Segment 2 Router Devices have common access to the network

21 OV 1 - 21 Copyright © 2013 Logical Operations, Inc. All rights reserved. Centralized Networks Connect to the host via terminals or terminal emulators Connect to the host via terminals or terminal emulators

22 OV 1 - 22 Copyright © 2013 Logical Operations, Inc. All rights reserved. Client/Server Networks Server Client 1Client 2 Clients perform basic end-user tasks Clients perform basic end-user tasks Server provides processing power, management services, and administrative functions

23 OV 1 - 23 Copyright © 2013 Logical Operations, Inc. All rights reserved. Peer-to-Peer Networks Resource sharing, processing, and communications control are completely decentralized Resource sharing, processing, and communications control are completely decentralized

24 OV 1 - 24 Copyright © 2013 Logical Operations, Inc. All rights reserved. Mixed Mode Networks Host Client/Peer ServerClient/Peer Clients with terminal emulators Incorporates elements from more than one network model Incorporates elements from more than one network model

25 OV 1 - 25 Copyright © 2013 Logical Operations, Inc. All rights reserved. Topology Describes a network's physical wiring layout Describes the paths through which data flows

26 OV 1 - 26 Copyright © 2013 Logical Operations, Inc. All rights reserved. Point-to-Point Connections A direct connection between two nodes on a network A direct connection between two nodes on a network

27 OV 1 - 27 Copyright © 2013 Logical Operations, Inc. All rights reserved. Multipoint Connections ReceiverDetectorSenderDetector Each multipoint connection has more than two endpoints

28 OV 1 - 28 Copyright © 2013 Logical Operations, Inc. All rights reserved. Radiated Connections Wireless point-to-point or multipoint connection

29 OV 1 - 29 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Physical Bus Topology T-connector Terminator Nodes are arranged in a linear format

30 OV 1 - 30 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Physical Star Topology Switch Individual nodes send data to the connectivity device Individual nodes send data to the connectivity device Uses a central connectivity device

31 OV 1 - 31 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Physical Ring Topology Has upstream and downstream neighbors Has upstream and downstream neighbors Flow of data is unidirectional to avoid collisions Flow of data is unidirectional to avoid collisions

32 OV 1 - 32 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Physical Mesh Topology Each node is directly connected to every other node

33 OV 1 - 33 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Physical Tree Topology

34 OV 1 - 34 Copyright © 2013 Logical Operations, Inc. All rights reserved. Hybrid Topologies Star-bus topology

35 OV 1 - 35 Copyright © 2013 Logical Operations, Inc. All rights reserved. Types of Hybrid Topologies Hybrid TopologyFormed By Star-busLinking the central nodes of star networks using a common bus. Star-of-stars Connecting the central nodes of two or more star networks with a new common node. Star-ring Connecting the central nodes of multiple star networks in a ring fashion.

36 OV 1 - 36 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Logical Bus Topology

37 OV 1 - 37 Copyright © 2013 Logical Operations, Inc. All rights reserved. Data Transmission on a Bus Nodes listen passively to the channel A node transmits data when the bus is free Sends out a broadcast alert Destination node picks up the transmission In case of non-receipt of data, the bus terminates the transmission Collision occurs; nodes wait before retransmitting data

38 OV 1 - 38 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Logical Ring Topology Receives data from its upstream neighbor and retransmits to downstream neighbor

39 OV 1 - 39 Copyright © 2013 Logical Operations, Inc. All rights reserved. The Logical Star Topology

40 OV 1 - 40 Copyright © 2013 Logical Operations, Inc. All rights reserved. Reflective Questions 1. In your opinion, what are the considerations for choosing between the different topologies to implement in your network? 2. Describe any background experience you have working with LANs, WANs, or other types of networks.

Download ppt "OV 1 - 1 Copyright © 2013 Logical Operations, Inc. All rights reserved. Network Theory  Networking Terminology  Network Categories  Standard Network."

Similar presentations

COMPUTER NETWORK TOPOLOGIES

COMPUTER NETWORK TOPOLOGIES
Introduction to Computer Administration. Computer Network - Basic Concepts Computer Networks Computer Networks Communication Model Communication Model.

Introduction to Computer Administration. Computer Network - Basic Concepts Computer Networks Computer Networks Communication Model Communication Model.
INTRODUCTION TO COMPUTER NETWORKS Zeeshan Abbas. Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS.

INTRODUCTION TO COMPUTER NETWORKS Zeeshan Abbas. Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS.
2 - Winter 2005 EE EE 766 Computer Interfacing and Protocols 1 Basic Concepts Link: Physical pathway between devices Line Configuration: Attachment of.

2 - Winter 2005 EE EE 766 Computer Interfacing and Protocols 1 Basic Concepts Link: Physical pathway between devices Line Configuration: Attachment of.
Saeed Darvish Pazoki – MCSE, CCNA Abstracted From: Sybex – Network+ Study Guide Network Fundamentals 1.

Saeed Darvish Pazoki – MCSE, CCNA Abstracted From: Sybex – Network+ Study Guide Network Fundamentals 1.
What is a network? A network consists of two or more computers that are linked in order to share resources (such as printers and CD-ROMs) , exchange.

What is a network? A network consists of two or more computers that are linked in order to share resources (such as printers and CD-ROMs) , exchange.
Shalini Bhavanam. Key words: Basic Definitions Classification of Networks Types of networks Network Topologies Network Models.

Shalini Bhavanam. Key words: Basic Definitions Classification of Networks Types of networks Network Topologies Network Models.
7 © The McGraw-Hill Companies, Inc. 2002 77 CHAPTER Connectivity, the Wireless Revolution, and Communications.

7 © The McGraw-Hill Companies, Inc CHAPTER Connectivity, the Wireless Revolution, and Communications.
Computer Networks: Introduction1 Introduction. Computer Networks: Introduction2 Network Definitions and Classification Preliminary definitions and network.

Computer Networks: Introduction1 Introduction. Computer Networks: Introduction2 Network Definitions and Classification Preliminary definitions and network.
Copyright©2008 N.AlJaffan®KSU1 Chapter 8 Communications and Networks.

Copyright©2008 N.AlJaffan®KSU1 Chapter 8 Communications and Networks.
Core 3: Communication Systems. On any network there are two types of computers present – servers and clients. By definition Client-Server architecture.

Core 3: Communication Systems. On any network there are two types of computers present – servers and clients. By definition Client-Server architecture.
INTRODUCTION TO COMPUTER NETWORKS INTRODUCTION Lecture # 1 (

INTRODUCTION TO COMPUTER NETWORKS INTRODUCTION Lecture # 1 (
Growing the Network © 2004 Cisco Systems, Inc. All rights reserved. Choosing the Right Network Topology INTRO v2.0—3-1.

Growing the Network © 2004 Cisco Systems, Inc. All rights reserved. Choosing the Right Network Topology INTRO v2.0—3-1.
Network Topologies.

Network Topologies.
Group Members Adnan Usman Saad Subhan  Layout pattern of interconnections of links, nodes.  Network Topologies may be Physical or Logical.

Group Members Adnan Usman Saad Subhan  Layout pattern of interconnections of links, nodes.  Network Topologies may be Physical or Logical.
Chapter 9A Network Basics.

Chapter 9A Network Basics.
Chapter Overview Network Communications.

Chapter Overview Network Communications.
 Part 1: The definitions of networking -Network -Standalone -LAN -WAN -Clients -Server -Clients/Server Networks -Peer to Peer Networks Part 1NetworkStandaloneLANWANClientsServerClients/Server.

 Part 1: The definitions of networking -Network -Standalone -LAN -WAN -Clients -Server -Clients/Server Networks -Peer to Peer Networks Part 1NetworkStandaloneLANWANClientsServerClients/Server.
Networks A network is a collection of computers and devices connected together via communications devices and transmission media Advantages of a network.

Networks A network is a collection of computers and devices connected together via communications devices and transmission media Advantages of a network.
Chapter 4 Computer Networks – Part 1

Chapter 4 Computer Networks – Part 1

Similar presentations

Ads by Google