Network Design and Implementation 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 Form: formal or informal 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 Problems User, specialist, and management Problems Technical or non-technical Analysis (technical, operational, economical, legal, schedule) Report and presentation Go or stop

Analysis Analysis items Documentation and reports 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 Simulation 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 Components list 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 Management: budget Users Operators Management: budget

Purchasing Vendor agreement Get a experienced lawyer 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 Educating Security and backup Classroom Hand on In house Outside Educating Users Operators Maintenance crew Security and backup

Testing Testing time Testing Tools Testing areas Software & hardware IBM’s Telecommunication Network Simulator Testing areas Performance Stress testing (load) Error handling Error recovery procedures

Conversion Types Help desk Vendor technicians or consultants 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.