Embodiments of a device and method are disclosed. In an embodiment, a method of network deployment involves at a cloud server, determining a planned network design for a network to be deployed at a customer site, at the cloud server, receiving network device information and location information of a network device after the network device is deployed at the customer site, and at the cloud server, automatically performing network deployment deviation detection for the network device based on the planned network design and the network device information and the location information of the network device.