Characterizing the Existing Network Designing and Supporting Computer

  • Slides: 24
Download presentation
Characterizing the Existing Network Designing and Supporting Computer Networks – Chapter 3 ITE I

Characterizing the Existing Network Designing and Supporting Computer Networks – Chapter 3 ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1

Objectives § Diagram and document an existing network to identify strengths and weaknesses in

Objectives § Diagram and document an existing network to identify strengths and weaknesses in the design. § Use CCO to determine the appropriate IOS version to support network requirements and download and install the appropriate IOS § Use CCO to determine the appropriate hardware features and install the upgrades using safe practices and procedures § Perform a wireless site survey § Organize collected data into a new network design ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2

Diagram a Physical Network and Document the Existing Network documentation: § Logical and physical

Diagram a Physical Network and Document the Existing Network documentation: § Logical and physical diagrams § Floor plans § Inventory lists for equipment and applications § Current network configuration files ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3

Diagram a Physical Network and Document the Existing Network § Log in to network

Diagram a Physical Network and Document the Existing Network § Log in to network devices § Use Cisco IOS software commands to gain information on routers and switches ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4

Diagram a Physical Network and Document the Existing Network § Create a logical network

Diagram a Physical Network and Document the Existing Network § Create a logical network diagram showing existing addressing, routing, and network segmentation § Illustrate how information flows through the network ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5

Diagram a Physical Network and Document the Existing Network § Create a modular block

Diagram a Physical Network and Document the Existing Network § Create a modular block diagram § Simplify the network to show major functions ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6

Diagram a Physical Network and Document the Existing Network § Identify and document the

Diagram a Physical Network and Document the Existing Network § Identify and document the strengths and weaknesses of the existing network § Focus on finding ways to overcome weaknesses ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements Cisco CCO

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements Cisco CCO features and navigation: § Documentation § Tools § Downloads § Communities and training § News ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements § Use

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements § Use the show version command § Verify that the inventory list is correct § Obtain missing information ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements § Select

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements § Select the correct IOS image using the CCO IOS Feature Navigator ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements § Download

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements § Download the correct IOS § Store new IOS image on TFTP server § Transfer the file to the Cisco router or switch ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements Three stages

Use CCO to Determine the Appropriate IOS Version to Support Network Requirements Three stages of the router bootup process: § Perform the POST and load the bootstrap program § Locate and load the IOS software § Locate and execute the startup configuration, or enter setup mode ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12

Use CCO to Determine the Appropriate Hardware Features and Install the Upgrades § Use

Use CCO to Determine the Appropriate Hardware Features and Install the Upgrades § Use datasheets to see what modules and interfaces are available § Determine the technologies and media a given device will support ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13

Use CCO to Determine the Appropriate Hardware Features and Install the Upgrades Installing a

Use CCO to Determine the Appropriate Hardware Features and Install the Upgrades Installing a new hardware option on a Cisco router or switch: § Turn off power § Remove blank faceplace § Install option module § Turn on power and check the new configuration ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14

Perform a Wireless Site Survey § Preparation § Site survey § Security § Safety

Perform a Wireless Site Survey § Preparation § Site survey § Security § Safety guidelines ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15

Perform a Wireless Site Survey § Identify possible sources of signal interference § Identify

Perform a Wireless Site Survey § Identify possible sources of signal interference § Identify physical infrastructure issues ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 16

Perform a Wireless Site Survey § Define customer requirements § Identify coverage areas §

Perform a Wireless Site Survey § Define customer requirements § Identify coverage areas § Determine preliminary access point locations § Measure signal strength ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17

Organize Collected Data into a New Network Design requirements document: § Overall project goal

Organize Collected Data into a New Network Design requirements document: § Overall project goal § Project scope § Network requirements § Current state of the network ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18

Organize Collected Data into a New Network Design § Identify and record the overall

Organize Collected Data into a New Network Design § Identify and record the overall goal of the proposed network design ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19

Organize Collected Data into a New Network Design § Identify and record the scope

Organize Collected Data into a New Network Design § Identify and record the scope of the proposed network upgrade ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 20

Organize Collected Data into a New Network Design § Identify and record the business

Organize Collected Data into a New Network Design § Identify and record the business goals and technical requirements of the proposed network design ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 21

Organize Collected Data into a New Network Design § Characterize the existing network in

Organize Collected Data into a New Network Design § Characterize the existing network in relation to the identified business goals and technical requirements ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 22

Summary § Ensure that network documentation is accurate and complete before designing an upgrade

Summary § Ensure that network documentation is accurate and complete before designing an upgrade § Gather information using tools like Cisco Network Assistant § Organize the current network into a modular block diagram to identify where the network needs to be improved. § The Cisco CCO site provides valuable tools and documentation for the design process. § Before producing a wireless network design, it is usually necessary to do a wireless site survey. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 23

ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public

ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 24

TopDown Network Design Chapter Three Characterizing the ExistingTopDown Network Design Chapter Three Characterizing the Existing
Gathering Network Requirements Designing and Supporting Computer NetworksGathering Network Requirements Designing and Supporting Computer Networks
Prototyping the Campus Network Designing and Supporting ComputerPrototyping the Campus Network Designing and Supporting Computer
Creating the Network Designing and Supporting Computer NetworksCreating the Network Designing and Supporting Computer Networks
Introducing Network Design Concepts Designing and Supporting ComputerIntroducing Network Design Concepts Designing and Supporting Computer
Designing Software Designing Software Algorithm definition Designing SoftwareDesigning Software Designing Software Algorithm definition Designing Software
TopDown Network Design Chapter Four Characterizing Network TrafficTopDown Network Design Chapter Four Characterizing Network Traffic
TopDown Network Design Chapter Four Characterizing Network TrafficTopDown Network Design Chapter Four Characterizing Network Traffic
TopDown Network Design Chapter Four Characterizing Network TrafficTopDown Network Design Chapter Four Characterizing Network Traffic
Supporting Details 10 Steps THREE Supporting Details SupportingSupporting Details 10 Steps THREE Supporting Details Supporting
CHARACTERIZING AND SUPPORTING CROSSDEVICE SEARCH TASKS Yu WangCHARACTERIZING AND SUPPORTING CROSSDEVICE SEARCH TASKS Yu Wang
Characterizing and Supporting CrossDevice Search Tasks Yu WangCharacterizing and Supporting CrossDevice Search Tasks Yu Wang
Types of Computer Network Computer Network A computerTypes of Computer Network Computer Network A computer
1 Computer Network 2 Computer Network A Computer1 Computer Network 2 Computer Network A Computer
Computer Networks Computer Network A computer network isComputer Networks Computer Network A computer network is
1 Computer Network 2 Computer Network A Computer1 Computer Network 2 Computer Network A Computer
1 Computer Network 2 Computer Network A Computer1 Computer Network 2 Computer Network A Computer
Computer Networks Computer Network A computer network isComputer Networks Computer Network A computer network is
Designing the network IP addressing and Subnets designingDesigning the network IP addressing and Subnets designing
Designing the network IP addressing and Subnets designingDesigning the network IP addressing and Subnets designing
Identifying Application Impacts on Network Designing and SupportingIdentifying Application Impacts on Network Designing and Supporting
Use Your Existing Commerce Existing relationship Ad SupportedUse Your Existing Commerce Existing relationship Ad Supported
Zoning NorthWest Existing Use NorthWest Zoning SouthWest ExistingZoning NorthWest Existing Use NorthWest Zoning SouthWest Existing