© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 1

N|Design

Ahmed Sultan

Network and Security Engineer Founder and CEO at Egypt NetRiders

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 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

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 3

Network Design

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Network Topology

Network topology is the layout pattern of interconnections of the various elements of a computer network.

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 5

Data Network

Electronic communications process that allows two nodes to send and receive data

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Converged Networks

Convergence is the process of combining voice and video communications on a data network.

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Network Designers

Network operations

L1 – L3

Network engineering

Network Ops Mgr

Infrastructure Architect

Router and switch

support

Performance &

security strategy

Career path of the Network Designer

Network Designer

Enterprise

strategy

LAN, WAN, and

Datacenter support

Where network Designers spend their time

40%

15%

25%

20% Performance optimization

Security design

Trouble- shooting

Strategic project work

Source: Forrester Research

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Hierarchical Model

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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.

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 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

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 11

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

Traffic flow analysis

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Mansoura University Traffic Flow

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Network Design Certifications

CCDA

CCDP

CCDE

Description: Entry Level Network Designer

Experience: 3-5 yrs Networking experience

Prerequisites: CCNA

Requirements: 1 exam (DESIGN)

Roles: Network Design Individual Contributor, Network Design Lead in SMB, Operations

Description: Professional Level Network Designer

Experience: 5-7 yrs Networking experience

Prerequisites: CCNA, CCDA

Requirements: (3) exams ARCH, BCMSN, BSCI

Roles: Network Design Task Leader, SMB Lead Architect, Journeyman Contributor on Large Infrastructure Design

Expert Level Network Designer

Experience: 7+ yrs Networking experience

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

CC

DA

C

CD

P

CC

DE

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Network Design Tools

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@ahmedesultan