This section describes the vPC Peer Switch enhancement, which is enabled with the peer-switch vPC domain configuration command. The procedure covered in this document is applicable to all vPC-capable Cisco Nexus data center switches. Understanding the purpose of each enhancement, the change in behavior that the enhancement introduces, and the failure scenarios that the enhancement solves can help you understand why and when an enhancement should be configured within a vPC domain to help best satisfy business needs and requirements. Since the inception of Cisco NX-OS on Cisco Nexus data center switches, the Virtual Port Channel (vPC) feature has received numerous enhancements that improve the reliability of vPC-connected devices during failure scenarios and optimize forwarding behavior of both vPC peer switches. If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from devices in a specific lab environment.
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