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Troubleshooting Cisco Nexus Switches and NX-OS, First Edition by Richard Furr, Brad Edgeworth, Vinit Jain

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Chapter 12

High Availability

This chapter covers the following topics:

Nexus OS (NX-OS) is a resilient OS that has been designed on the paradigms of high availability not just at the system level, but at both the network and process levels as well. Some of the Nexus switches provide high availability by redundancy hardware such as redundant fabric, supervisor cards, and power supplies. Network-level high availability is provided by features such as virtual port-channels (vPC) and First Hop Redundancy Protocol (FHRP), which give users backup paths to failover in case the primary path fails. NX-OS leverages various system components to provide process ...

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