Devices, methods, apparatuses and media for communication

A first device for communication, comprising:

• at least one processor;
• and
• at least one memory having instructions stored therein which, when executed, causes the first device at least to:
• receive, from a second device, template data for an optical network unit set and instance data for an optical network unit in the optical network unit set;
• and
• generate, at least based on the template data and the instance data, target configuration data for the optical network unit, the target configuration data correspond to target data generated from the template data and the instance data;
• wherein the template data, the instance data and the target data are data based on another next generation (YANG) model, and the configuration data, the template configuration data and the instance configuration data are Optical Network Unit Management and Control Interface (OMCI) data;
• wherein the first device comprises an OMCI function, and the second device comprises an Optical Line Terminal (OLT) management function.

A second device for communication, comprising:

• at least one processor;
• and
• at least one memory having instructions stored therein which, when executed, causes the second device at least to:
• receive a first message from a first device, the first message indicates whether the first device supports generating target configuration data for an optical network unit in an optical network unit set based on template data for the optical network unit set, the target configuration data correspond to target data generated from the template data and instance data for the optical network unit;
• and
• send a second message to the first device based on determining that the first message indicates the first device supports generating the target configuration data based on the template data, the second message comprises the template data, the instance data, and identification information for identifying the template data;
• wherein the template data, the instance data and the target data are data based on another next generation (YANG) model;
• wherein the first device comprises an Optical Network Unit Management and Control Interface (OMCI) function, and the second device comprises an Optical Line Terminal (OLT) management function.