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High Availability Network Fundamentals by Chris Oggerino

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Scenario 2 of The Small ISP Example

As we mentioned before performing the Scenario 1 steps, we are going to use those here in Scenario 2. This scenario requires that we include a couple of additional network components. Specifically, the Cisco 800 router and the PSTN availability figures will be required. Additionally, the AS5300 calculations will need to be redone because we are not using that router the same way and also because the redundancy scheme will change.

After calculating the individual components, we will again need to include power, network design, and human error contributions.The power contribution, however, will be simple because we will add the CPE site power contribution directly in with the 800 calculations. The human error ...

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