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This chapter outlines the essential phases of network design and implementation, focusing on analysis, feasibility studies, and management approval processes. It details critical steps like requirement analysis, cost-benefit evaluation, vendor selection, and documentation. Additionally, it emphasizes the importance of training, testing, and post-implementation audits to ensure the effectiveness of LAN and voice networks. By prioritizing user needs and organizational goals while addressing technical and operational challenges, this guide serves as a roadmap for successful network deployment.
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Chapter 14 Network Design and Implementation
Agenda • Analysis and Design • Implementation • LAN • Voice Network Design
Analysis and Design Phases • Request • Feasibility Study • Analysis (requirement) • Alternatives (cost and benefit) • Design • Selection • Cost • Documentation • Management approval
Implementation Phases • Purchasing and vendor agreement • Installation • Training, and testing • Conversion • Follow up audit
Request • Source • User • Senior managers • Communication department • External environment (customer, government, etc.) • Form: formal or informal • Prioritization (costs & benefits analysis) • Outcome: approval, deny, or on hold by management
Feasibility Study • Team • User, specialist, and management • Problems • Technical or non-technical • Analysis (technical, operational, economical, legal, schedule) • Report and presentation • Go or stop
Analysis • Analysis items • Geographic requirement (scope) • Traffic load analysis • Peak load (no. of message and length) • National & international busy hour • Traffic flow pattern by individual location (map) • Response time, reliability, & availability (cost) • Terminal operators (end users & their education background and needs) • Capacity growth projection (6 months to 5 years) • Constraint: time, cost, and compatibility • Documentation and reports
Alternatives • Sources (vendors) • Availability (enchancements or new products) • Incompatibility issues • Costs/services trade off
Design • Items • Configuration diagram • Routing time (peak and average) • Response time (peak and average) • Delay consideration (queue) • Simulation • What if for routing, response, and delay
Selection Procedures • Request for proposal (RFP) or request for quotation (RFQ) • Selection criteria and its weight
Request for Proposal • Title • Table of contents • Description of organization • Problem definition • Operation requirements • Format of response • Evaluation criteria • Decision schedule • References
Description of Organization • Organization chart • Organization locations • Overview of system
Problem Definition • Error rate • Misrouting • Time consuming • Security
Operation Requirements • Reliability • Down time • Misrouting • Lost message • Transmission error • Performance • Throughput • Response time • Error rate
Format of Response - I • Title • Table of contents • Overview • Software (function & feature) • Hardware (function, feature, & capacity) • Performance (future growth) • Site requirement • Conversion (installation, testing, & schedule)
Format of Response - II • Maintenance (support) • Costs • Warranty Coverage • User Training • References • Other related information
Selection criteria • Proposed solution • Compatibility • Security and backup • Price • Technical support • Product maintenance • Repair service • Financial viability
Vendor Response to RFP - I • Introduction • Executive summary • Table of contents • System design • System feature • Growth capacity • Installation and testing methods • Maintenance arrangements • Ongoing support • Installation schedule • Pricing and timing of payments • Warranty coverage • Training and education • Other Recommendation
Documentation • Diagrams and maps • Configuration and wiring • Components list • Hardware: model and specification • Software: version, release, no. of copies • Implementation plan (Gantt chart) • Milestones • Activities • Schedule
Management Approval • Review and verification • Users • Operators • Management: budget
Purchasing • Vendor agreement • Equipment configuration specification • Acceptance test • Schedule: delivery, installation, testing, operation • Location: delivery, installation, testing, operation • Other terms and conditions: payment, warranty, maintenance • Get a experienced lawyer
Training • Types of instruction • Classroom • Hand on • In house • Outside • Educating • Users • Operators • Maintenance crew • Security and backup
Testing • Testing time • Testing Tools • Software & hardware • IBM’s Telecommunication Network Simulator • Testing areas • Performance • Stress testing (load) • Error handling • Error recovery procedures
Conversion • Types • Parallel • Cut over • Pilot • Piece by piece • Help desk • Vendor technicians or consultants • Implementation problems cleanup
Audit • After six months • Check performance or success criteria • Formal report to management for proper actions
LAN Design • Number of nodes • Usage • Traffic: day and time • Disk storage • Speed • Security and backup • Compatibility • Management
Voice Network Design • Peak load and average load • Grade of service • Capacity & usage of circuits • Overdesigning or planned delay
Points to Remember • Analysis and Design • Implementation • LAN • Voice Network Design
Discussion • Develop a simple request for proposal to add e-business to a traditional department store.