A practical guide to modeling and designing reliable networks Provides a detailed introduction to modeling availability necessary for network design Helps network designers understand the theoretical availability of their topologies Explains the factors that limit availability to minimize the number of network failures Provides all the information necessary to do basic availability modeling/budgeting High Availability Network Fundamentalsdiscusses the need for and the mathematics of availability, then moves on to cover the issues affecting availability, including hardware, software, design strategies, human error, and environmental considerations. After setting up the range of common problems, it then delves into the details of how to design networks for fault tolerance and provides sample calculations for specific systems. Also included is a complete, end-to-end example showing availability calculations for a sample network.Therefore, we will start this section with a quick discussion on the two major groupings for fail-over mechanisms: load sharing and standby. ... Should one of the devices fail, the remaining device or devices would be able to pick up the load with little or no interruption of services. ... Normal operation would have each of the two power supplies running at about 45 percent of its total capacity. In the eventanbsp;...
|Title||:||High Availability Network Fundamentals|
|Publisher||:||Cisco Press - 2001|