Transcript Corporate 2 Template

CPIT 375
Data Network Designing and
Evaluation
Network Architecture
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Outline:
– What is Network Architecture ?
– Difference Between Architecture and Design
– How to develop Network Architecture ?
– Component Architectures
– Architectural Models
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What is Network Architecture ?
• Network architecture, is the logical and structural
layout of the network consisting of transmission
equipment, software and communication
protocols and infrastructure (wired or wireless)
transmission of data and connectivity between
components.
• It required understanding of the relationships
between components of the network.
• The user requirements should be directly
represented in the network architecture.
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Difference Between Architecture and
Design
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Defining Network Topology
• There are 4 different network topologies:
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Star network
Bus or Line network
Loop or Ring network
Mesh network.
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Defining Types of Network
• LAN (Local Area Network)
• MAN (Metropolitan Area Network)
• WAN (Wide Area Network)
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Component Architectures
• Component architecture is a description of how
and where each function of a network is applied
within that network.
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Addressing/ Routing
Network Management
Performance
Security
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Architectural Model
• In developing the architecture for your network
there are several architectural models that you
can use as a starting point:
– Topological models
– Flow-based models
– Functional models
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Topological Model
• which are based on a geographical or topological
arrangement and are often used as starting
points in the development of the network
architecture
• There are two popular topological models:
– LAN/ MAN/ WAN models
– Access/ Distribution/ Core models.
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Topological Model
LAN/ MAN/ WAN Model
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Topological Model
Access / Distribution / Core Model
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Flow-Based Model
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peer-to-peer
client–server
Hierarchical client–server
distributed computing.
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Functional Model
• Functional architectural models focus on
supporting particular functions in the network.
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service-provider
intranet/extranet
single/ multi-tiered performance
end-to-end models.
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