Difference between revisions of "CCNA Explorer 3 LAN Design"

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==Switched LAN Architecture==
 
==Switched LAN Architecture==
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[[Image:ScreenShot002.jpg|800px|left|thumb|Hirarchical Network Design]]
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{|
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|[[Image:ScreenShot002.jpg|800px|left|thumb|Hirarchical Network Design]]
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Benefits of a Hirarchical Network
 
Benefits of a Hirarchical Network
 
*Scalability
 
*Scalability
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*Maintainablity
 
*Maintainablity
 
**The modularity af hierarchical design allows for the network to scale without becoming overly complicated
 
**The modularity af hierarchical design allows for the network to scale without becoming overly complicated
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[[Image:ScreenShot005.jpg|800px|left|thumb|Network diameter]]
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{|
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[[Image:ScreenShot006.jpg|800px|left|thumb|bandwith Aggregation]]
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|[[Image:ScreenShot005.jpg|800px|left|thumb|Network diameter]]
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[[Image:ScreenShot007.jpg|800px|left|thumb|Redundant Links]]
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|-
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[[Image:ScreenShot008.jpg|800px|left|thumb|Converged networks - One to rule them all]]
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|[[Image:ScreenShot006.jpg|800px|left|thumb|bandwith Aggregation]]
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[[Image:ScreenShot009.jpg|800px|left|thumb|Voice network]]
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|-
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[[Image:ScreenShot010.jpg|800px|left|thumb|Video network]]
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|[[Image:ScreenShot007.jpg|800px|left|thumb|Redundant Links]]
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[[Image:ScreenShot011.jpg|800px|left|thumb|Data network]]
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|-
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|[[Image:ScreenShot008.jpg|800px|left|thumb|Converged networks - One to rule them all]]
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|-
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|[[Image:ScreenShot009.jpg|800px|left|thumb|Voice network]]
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|-
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|[[Image:ScreenShot010.jpg|800px|left|thumb|Video network]]
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|-
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|[[Image:ScreenShot011.jpg|800px|left|thumb|Data network]]
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|-
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==Matching Switches to Specific LAN Functions==
 
==Matching Switches to Specific LAN Functions==
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[[Image:ScreenShot012.jpg|800px|left|thumb|Locate heavy traffic servers close to the users]]
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{|
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|[[Image:ScreenShot012.jpg|800px|left|thumb|Locate heavy traffic servers close to the users]]
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*Bandwidth aggregation and switch forwarding rates are important factors to consider when attempting to eliminate bottlenecks
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*Switches selected for data centers should be higher performing switches than the switches you would find in the wiring closets at the access layer
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Revision as of 10:40, 17 August 2010

Switched LAN Architecture

Hirarchical Network Design

Benefits of a Hirarchical Network

  • Scalability
    • Hierarchical netowrk can be expanded easily
  • Redundancy
    • Redundancy at the core and distribution level ensure path availability
  • Performance
    • Link aggregation between levels and high-performance core and distribution level switches allow for near wire-speed throughout the network
  • Security
    • Port security at the access level and policies at the distribution level make the network more secure
  • Manageability
    • Consistency between switches at each level makes management more simple
  • Maintainablity
    • The modularity af hierarchical design allows for the network to scale without becoming overly complicated
Network diameter
bandwith Aggregation
Redundant Links
Converged networks - One to rule them all
Voice network
Video network
Data network

Matching Switches to Specific LAN Functions

Locate heavy traffic servers close to the users
  • Bandwidth aggregation and switch forwarding rates are important factors to consider when attempting to eliminate bottlenecks
  • Switches selected for data centers should be higher performing switches than the switches you would find in the wiring closets at the access layer
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