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Designing and Supporting Computer Networks – Chapter 1 - Coggle Diagram
Designing and Supporting Computer Networks – Chapter 1
Network requirement
Ease of management
Fast recovery
Fast troubleshooting
Application response time
Four fundamental network design goals
Security
Availability
Manageability
Scability
.
core layer
connects distribution layer devices
Distribution layer
interconnects smaller LANs
Access Layer
provides connections for hosts and end devices
Subdividing the three-layer model into modular areas
Server farm
Enterprise edge
Enterprise campus
Advantages of Modular Framework
It creates a deterministic network with clearly defined boundaries between modules.
It eases the design task by making each module independent.
Steps in network design projects
Characterize the existing network
Design the network topology and solutions
Identify the network requirements
Explain what Factors Need to be Considered when Designing the Network Core Layer
Network backbone
Goals of the Core Layer
Combining routing and switching in the same device
Explain which Factors Need to be Considered when Designing the Distribution Layer of a Network
Filtering and managing traffic flow
Access control policies
Route summarization
Isolating Core Layer from Access Layer failures