High Availability Network Fundamentals - download pdf or read online

By Chris Oggerino

ISBN-10: 1587130173

ISBN-13: 9781587130175

A realistic advisor to modeling and designing trustworthy networks presents a close creation to modeling availability worthwhile for community layout is helping community designers comprehend the theoretical availability in their topologies Explains the criteria that restrict availability to lessen the variety of community disasters offers all of the info essential to do uncomplicated availability modeling/budgeting excessive Availability community basics discusses the necessity for and the math of availability, then strikes directly to hide the problems affecting availability, together with undefined, software program, layout thoughts, human blunders, and environmental concerns. After establishing the diversity of universal difficulties, it then delves into the main points of the way to layout networks for fault tolerance and gives pattern calculations for particular platforms. additionally integrated is an entire, end-to-end instance exhibiting availability calculations for a pattern community.

Show description

Read or Download High Availability Network Fundamentals PDF

Similar data in the enterprise books

New PDF release: Using MPI-2: Advanced Features of the Message Passing

The Message Passing Interface (MPI) specification is frequent for fixing major medical and engineering difficulties on parallel desktops. There exist greater than a dozen implementations on laptop systems starting from IBM SP-2 supercomputers to clusters of desktops working home windows NT or Linux ("Beowulf" machines).

New PDF release: Efficient Test Methodologies for High-Speed Serial Links

With the expanding call for for better information bandwidth, verbal exchange platforms’ facts premiums have reached the multi-gigahertz diversity or even past. Advances in semiconductor applied sciences have speeded up the adoption of high-speed serial interfaces, resembling PCI-Express, Serial-ATA, and XAUI, for you to mitigate the excessive pin-count and the data-channel skewing difficulties.

Get Social Media, Crisis Communication and Emergency Management: PDF

Even supposing contemporary worldwide mess ups have sincerely validated the ability of social media to speak serious details in real-time, its actual strength has but to be unleashed. Social Media, drawback conversation, and Emergency administration: Leveraging net 2. zero applied sciences teaches emergency administration pros how you can use social media to enhance emergency making plans, preparedness, and reaction features.

Get Understanding Sonet/Sdh and Atm: Communications Networks for PDF

''Optical communications and fiber expertise are quick changing into key ideas for the expanding bandwidth calls for of the twenty first century. This introductory textual content presents working towards engineers, managers, and scholars with an invaluable advisor to the newest advancements and destiny tendencies of 3 significant applied sciences: SONET, SDH, and ATM, and a quick advent to legacy TDM communications structures.

Additional info for High Availability Network Fundamentals

Example text

The important thing to remember about this section is that most telecommunications companies use the Bellcore method to calculate hardware MTBF for their products. However, because so many electronics companies use the Mil-Hdbk-217 specification, it is also acceptable. You should simply verify that MTBF estimates you get are based on one of these two standards. Computing MTTR You have a variety of ways to calculate MTTR. In this book, I am going to show a very simple way that is accurate enough for our purposes.

To calculate the availability between Segment A and Segment B, we put the results of the two paths (Routers 1 and 2 and Routers 3 and 4) into our parallel availability equation. 9 percent. 8 percent. 9996 percent, which is an excellent result. Of course, we didn't consider the downtime resulting from the non-parallel devices in this network such as Switches 1 and 2, the server, and the client. In calculations on a real-life network, you will want to include all the parts of the network. As we work through this chapter, we will add to Figure 3-3 in our discussion of the serial/parallel topology.

Figure 4-7. Calculating Component Availability Once you have the availability for each of the parts, it is time to combine those parts that are in parallel as calculated in Figure 4-8. Figure 4-8. Determining Parallel Component Availability 50 Part II: Predicting Availability Part II: Predicting Availability 51 The final step is to combine all the parts, including the parallel results, into the final system availability as calculated in Figure 4-9. Figure 4-9. Calculating the Availability of a Redundant Single System As you can see, we have performed a variety of different steps in order to arrive at our final availability figure.

Download PDF sample

High Availability Network Fundamentals by Chris Oggerino

by Robert

Rated 4.22 of 5 – based on 43 votes