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PowerPoint – Internet Security Program

Posted in Sample - IT Spreadsheets - PowerPoints (251),Security (1500) by Guest on the October 31st, 2012
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What to expect with a – Cloud Computing Vendor

Posted in Data Center - SOC - NOC by Guest on the October 31st, 2012

If your going to consider cloud computing solution, then you better set the bar way high.

http://www.bestitdocuments.com/IT_Security_Methodology_solutions.html

 

 

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PowerPoint – IT Requirements Capture Process

Posted in Projects (400),Sample - IT Spreadsheets - PowerPoints (251) by Guest on the October 29th, 2012

Free PowerPoint document download

Really really nice file.

Sample Enterprise Data Strategy

http://www.bestitdocuments.com/Data_technologies_solutions.html

 

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PowerPoint – Enterprise Data Strategy

Free PowerPoint document download

Really really nice file.

Sample Enterprise Data Strategy

http://www.bestitdocuments.com/Data_technologies_solutions.html

 

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Network – Latency vs. Bandwidth Fundamentals

Posted in Networking (340) by Guest on the October 27th, 2012

Latency is the amount of time it takes for a packet to traverse the network

Latency vs. Bandwidth

Why is it important?

 If it takes a single packet 100 ms to travel from location A to location B, adding bandwidth will not make it any faster.

Application considerations for latency:

  1. Application turns
  2. Acknowledgements
  3. Window size
  4. Data loads
  5. Load Balancing 

Application Turns:

  1. If an application has a high number of turns, the application’s performance will deteriorate rapidly as latency is introduced
  2. Sample capture of application transaction 

Conclusion:

When latency is a factor, the number of acknowledgements required could become a limiting factor to performance. Example: Data sent to London that requires each packet to be acknowledged with a latency of 95 ms is limited to throughput of 11 packets per second. 

Sliding Windows set too low:

If the sliding window is set too low, it can have similar impacts as acknowledgements. Example: Every 3rd or 4th packet acknowledged. 

Small data loads in packets:

The more packets that need to be transmitted the greater the impact of latency.

Sample intranet application transaction response time over varying bandwidths and latencies:

Login Response Time per Bandwidth & Latency

http://www.bestitdocuments.com/Networking.html

 

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Sample Visio – SAS / ITIL Framework

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