What’s the difference between DM and DL?
DM is a protocol that defines different aspects of Device Management operation. It controls the actions and processes by which downloadable data from the DL Server is manipulated for the purposes of updating a device. Some device management operations are “Bootstrapping”, “Configuration Settings”, “Configuration Query”, and etc.. According to OMA DM protocol standards, there are two protocol versions DM 1.1 and DM 1.1.2. There are two architectural entities in the DM protocol; they are DM Server (Device Management Server), and DM Client or DMA (Device Management Agent). DL is a protocol that defines how content is downloaded from the download server (also called content server). There are two architectural entities that involved in this protocol, DL Server (Download Server), and DLA (Download Agent) which is implemented on the device. There are two kinds of download operations specified by the DL protocol. They are In-band and Out-of-Band. With In-band Download operation, the download
