Methods, systems, and computer programs are presented for providing a program to a server. One method includes an operation for receiving a request by a switching device from a first server, the request being for a boot image for booting the first server. In addition, the method includes operations for determining if the boot image is available from non-volatile storage in the switching device, and for forwarding the request to a second server when the boot image is absent from the non-volatile storage. Further, the method includes an operation for sending the boot image to the first server from the switching device when the boot image is available from the non-volatile storage.