Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Reducing Capacity
|
- Traffic Shaping (Filtering, Capacity Percentages)
- Compression |
|
|
traffic shaping
|
filtering out or limiting undesirable incoming traffic can also substantially reduce overall network costs.
|
|
|
filtering
|
getting rid of unwanted traffic at access switches (things that have no business at a corporate network like MP3 sharing)
|
|
|
capacity percentages
|
can shape traffic by assigning _______ to certain applications arriving at access switches
|
|
|
compression
|
exploits redundancy in data to recode data into fewer bits; traffic must be decompressed on other side; can help if traffic chronically exceeds the capacity on a line
|
|
|
problems w/ compression
|
- slows down process
- can lose data - must have compatible compression equipment at the two ends of the line |
|
|
What-If Analysis
|
◦ Try alternative designs to close performance
gaps. ◦ Select the optimum design in terms of performance and cost. ◦ Trying many designs will probably result in the selection of a very good design. ◦ Far cheaper than changing around the real network. |
|
|
minimum requirements (is this really a good option?)
|
◦ Specifications that set particular requirements
must be met; noncompliant products that do not meet these cannot be considered further. - not always? since it's not the best |
|
|
SDLC cost
|
Hardware: full price—base price plus necessary
optional components ◦ Software: full price—base price plus necessary optional modules ◦ Labor costs: Network staff and user costs during development ◦ Outsourced development cost ◦ Total development cost |
|
|
SLC cost
|
◦ Development cost plus ongoing cost, which
usually is much larger than development cost ◦ Measured as the total cost of ownership (TCO) All costs over a system’s total life ◦ Ongoing costs include carrier costs Carrier pricing is complex and difficult to analyze ◦ Often locked in by multi-year leases |
