When changing VLAN configurations for hosts and Controller Virtual Machines (CVMs) in a Nutanix cluster, doing so while the cluster is running can result in temporary communication losses, leading to alerts such as a node appearing down. To avoid these disruptions and ensure a smooth reconfiguration process, it is advisable to stop the cluster services before making VLAN changes. This prevents the cluster from detecting intermittent connectivity as node failures, thereby avoiding false alerts in Prism Element.
References:
Nutanix Bible (https://www.nutanixbible.com ), particularly the sections discussing cluster operations and network reconfiguration.
Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), which includes best practices for network configuration.
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