Abstract: This application provides a method for upgrading nodes in batches, a related apparatus, and a device, which are applicable to the communications field, and are used to ensure normal provision of a service and improve service quality in a process of upgrading the nodes in batches. The method includes: obtaining batch information for upgrading, where the batch information for upgrading includes an upgrade sequence of each group, determining a to-be-upgraded group node based on the upgrade sequence of each group, migrating a service on the to-be-upgraded group node to another non-upgraded node, and upgrading the to-be-upgraded group node.

Abstract: In a method of managing the lifecycle of a virtual network function (VNF), a VNF manager sends a pre-notification to the VNF to notify the VNF in advance that the VNF is to enter a target stage of the lifecycle. After receiving a response to the pre-notification from the VNF, the VNF manager controls the VNF to enter the target stage of the lifecycle.