- StudyBlue
- Illinois
- Loyola University Chicago
- Information Systems
- Information Systems 398
- Kaefer
- Final - Network Design
Final - Network Design
Information Systems 398 with Kaefer at Loyola University Chicago
About this deck
By: Holly Dresen
Created: 2011-04-15
Size: 20 flashcards
Views: 6
Created: 2011-04-15
Size: 20 flashcards
Views: 6
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Traditional Network Design
-A structured system analysis and design process
---Network Analysis Phase
---Implementation phase
-Works well for static and slowly evolving networks, although COSTLY and TIME CONSUMING
Network Analysis Phase
-meeting with users to determine needs and applications
- estimating data traffic on each part of the network
-designing circuits needed to support this traffic and obtain cost estimates
Implementation Phase
-building and implementing the network
-takes place a year of two later
Inadequacy of Traditional Design
1)Rapidly changing technology of computers, networking devices and the circuits; faster and more powerful
2)Rapidly growing traffic network: difficulty estimating demand
3)Dramatic change in the balance of costs; now staff is costly
Building Block Network Design
-use a few standard components to reduce long run cost
-with ample capacity without extensive traffic analysis
Phases of Building Block Design
-Needs analysis
-Technology Design
-Cost assessment
Needs Analysis
-baseline-geographic scope-Application systems-network users-needs categorization
-to understand why the network is being built and what users and applications it will support
Technology Design
-Clients and Servers
-Circuits and Devices
Cost Assessment
-off the shelf
-request for proposal
Benchmark
current network should be produced by which measure future design requirements
-present sequence of operation including: processing types, work volumes, current network, existing cost, user/management needs
feasibility study
determines whether to design network or improve the current one: including problems definitions and identifying management and technical issues
-Technical, Operational, Economic feasibility
Need Analysis - Deliverables
- the key deliverable for the needs assessment stage are a set of logical network diagrams. showing the applications and the circuits, clients, and servers in the proposed network, categorized as "typical" or "high volume"
Technology Design
-designing clients and servers
-designing circuits and devices
Often employ network design tools
Calculating Circuit Requirements
response time needs to be considered
turnpike effect - network used to a greater extent than anticipated
Technology Design - Deliverables
- the key at this point are a revised set of physical network design that include general specifications for the hardware and software required
Cost Assessment
things to consider: circuit cost, Internetworking devices, hardware and software cost, network management and maintenance cost
Determining Network Cost
-Request for Proposal: specify equipment, software and services and vendor prices
-One or multiple vendors
-often redesign network from vendor feedback
Selling the Proposal to management
-one of the main problems in the network is obtaining the support of senior management
-the key to gaining their support is speaking their language
-Focus on network usage, budgets, and reliability are easily understandable issues
Cost Assessment - Deliveables
-Request for Proposal for potential vendors
-revise the design and technology
-get management on board for the designs - business objectives
Designing for Network Performance
-Managed networks
-Traffic analysis and service level agreements
-network devices
-minimize network traffic
About this deck
By: Holly Dresen
Created: 2011-04-15
Size: 20 flashcards
Views: 6
Created: 2011-04-15
Size: 20 flashcards
Views: 6
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
Dennis