exploration accessing wan chapter 1
TRANSCRIPT
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2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE I Chapter 6 1
Services in a Converged
WAN
Accessing the WAN
Chapter 1
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2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 2
Objectives
Describe how the Cisco Enterprise CompositeModel (ECNM) provides integrated servicesover an Enterprise network.
Describe the key WAN technology concepts. Identify the appropriate WAN technologies to
use when matching ECNM best practices withtypical enterprise requirements for WAN
communications.
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Describe How ECNM Provides IntegratedServices over an Enterprise Network
Explain the purpose and function of WANs
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Describe How ECNM Provides IntegratedServices over an Enterprise Network
Describe the stages of business growth, thecorresponding business requirements for services andhow those requirements are reflected in theEnterprises changing network topology
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Describe How ECNM Provides IntegratedServices over an Enterprise Network
Describe the problems with the Hierarchical DesignModel that Cisco's Enterprise Composite Model hasbeen designed to address
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Describe How ECNM Provides IntegratedServices over an Enterprise Network
Explain the purpose of Cisco Enterprise Architectures
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Describe the Key WAN TechnologyConcepts
Describe WAN functions in terms of the OSI ReferenceModel
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Describe the Key WAN TechnologyConcepts
Describe the key WAN physical layer concepts fornetwork and Internet communications
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Describe the Key WAN TechnologyConcepts
Describe the key WAN data link layer protocols used intodays Enterprise WAN networks
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Describe the Key WAN TechnologyConcepts
Describe the switching technologies used for WANs inan Enterprise setting
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Select the Appropriate WAN Technology to meetECNM Requirements
List the various options for connecting subscribers tothe WAN
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Select the Appropriate WAN Technology to meetECNM Requirements
Describe how Enterprises use leased line services toprovide a WAN connection
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Select the Appropriate WAN Technology to meetECNM Requirements
Describe the circuit switching options available toprovide a WAN connection
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Select the Appropriate WAN Technology to meetECNM Requirements
Describe the packet switching options available toprovide a WAN connection
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Select the Appropriate WAN Technology to meetECNM Requirements
List factors to consider when selecting a WANconnection
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Summary
A WAN is defined asA data communications network that operates beyond thegeographic scope of a LAN
WAN primarily operate on layer 1 & 2 of the OSI model
WAN technologies include
Leased line
ISDN
Frame relay
X.25
ATM
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Summary
Cisco Enterprise Architecture
This is an expansion of the hierarchical model that furtherdivides the enterprise network into
Physical areas
Logical areas
Functional areas Selecting the appropriate WAN technology requires
considering some of the following:
WANs purpose
Geographic scope of WANTraffic requirements
If WAN uses a public or private infrastructure
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