Chapter 5: Architecting the Network Cloud for High Availability - Building the Network of the Future [Book]

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5Architecting the Network Cloud for High Availability

Kathleen Meier-Hellstern, Kenichi Futamura, Carolyn Johnson, and Paul Reeser

Contents

5.1Network Cloud Infrastructure Availability

5.1.1Single-Site Availability

5.1.2Availability to Cost Tradeoff (Bottleneck Analysis)

5.2The Impact of Planned Downtime and Georedundancy

5.2.1Illustrative Example of the Impacts of Planned Downtime

5.2.2Best Design Practices for Minimizing the Impacts of Planned Downtime

5.3VF Software Design

5.3.1Fault Tolerant VM Designs

5.3.1.1Hot VM Replication

5.3.1.2Warm VM Replication

5.3.1.3Passive VM Replication

5.3.2Low Software Failure Rates and Accurate Fault Detection

5.3.2.1VF Protection from External Services

5.3.2.2VF Error Handling

5.3.2.3VF Software Fault ...

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