The document discusses network design and related topics. It provides an agenda that covers network topology, data networks, converged networks, network designers, hierarchical network models, traffic flow analysis, network design certifications, and network design tools. It also includes diagrams illustrating network topologies, the career path of network designers, and Cisco network design certification levels.

1. N|Design
Ahmed Sultan
Network and Security Engineer
Founder and CEO at Egypt NetRiders
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2. Agenda
• Network Design
• Network Topology
• Data Network
• Converged Networks
• Network Designers
• Hierarchical Model
• Benefits of a Hierarchical Network
• Traffic Flow Analysis
• Mansoura University Traffic Flow
• Network Design Certifications
• Network Design Tools
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3. Network Design
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4. Network Topology
Network topology is the layout pattern of interconnections
of the various elements of a computer network.
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5. Data Network
Electronic communications process that allows two nodes to
send and receive data
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6. Converged Networks
Convergence is the process of combining voice and video
communications on a data network.
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7. Network Designers
Career path of the Network Designer
Enterprise
Infrastructure Architect
strategy
Performance &
Network Ops Mgr Network Designer
security strategy
LAN, WAN, and
Network engineering
Datacenter support
Network operations Router and switch
L1 – L3 support
Where network Designers spend their time
20% Performance
optimization
40% Security
design
Trouble-
25% shooting
15% Strategic
project work
Source: Forrester Research
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8. Hierarchical Model
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9. Benefits of a Hierarchical Network
 Scalability
Hierarchical networks 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 perform their operations at very high speeds.
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10. Benefits of a Hierarchical 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
 Maintainability
Troubleshoot the network easily
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11. Traffic flow analysis
 You need to have specifications that detail the target
traffic flows, to select the appropriate switch for a layer in
a hierarchical network,
 Traffic flow analysis is the process of measuring the
bandwidth usage on a network and analyzing the data
for the purpose of performance tuning, capacity planning,
and making hardware improvement decisions
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12. Mansoura University Traffic Flow
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13. Network Design Certifications
Expert Level Network Designer
Experience: 7+ yrs Networking experience
CCDE
Prerequisites: NONE
Requirements: (2) exams Qualification and Practical Exam
Roles: Sr. Network Designer & Architect, Network Lead for
Enterprise IT Infrastructure Team, Network Contributor for
Enterprise Architecture team
Description: Professional Level Network Designer
CCDP
Experience: 5-7 yrs Networking experience
Prerequisites: CCNA, CCDA
Requirements: (3) exams ARCH, BCMSN, BSCI
Roles: Network Design Task Leader, SMB Lead Architect, CCDE
Journeyman Contributor on Large Infrastructure Design
Description: Entry Level Network Designer
CCDP
CCDA
Experience: 3-5 yrs Networking experience
Prerequisites: CCNA
Requirements: 1 exam (DESIGN) CCDA
Roles: Network Design Individual Contributor, Network Design
Lead in SMB, Operations
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14. Network Design Tools
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16. @ahmedesultan
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