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CHAPTER 1 - Designing and Supporting Computer Networks - Coggle Diagram
CHAPTER 1 - Designing and Supporting Computer Networks
Explain How a Hierarchical Network Design Creates a Stable, Reliable, Scalable Network
Network Requirements
Fast recovery
Application response time
Ease of management
Fast troubleshooting
4 fundamental network design goals:
1) Scalability
2) Availability
3) Security
4) Manageability
Core Layer - connects Distribution Layer devices
Distribution Layer - interconnects smaller LANs
Access Layer - provides connections for hosts and end devices
3 layer model into modular areas
Enterprise campus
Server farm
Enterprise edge
Steps in network design projects
Identify the network requirements
Characterize the existing network
Design the network topology and solutions
Advantages of Modular Framework
It creates a deterministic network
It eases the design task
It provides scalability
It enables the designer to add services and solution
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
Redundancy and load balancing
High-speed and aggregate links
Quick convergence
Full mesh topology
Partial mesh topology
Failure prevention
Reducing human error
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
Routing between VLANs
Physical location of equipment
Wiring closets
Converged networking
Availability
Naming structures
VLAN architecture