confirmation (OSI) (CONF)
The confirmation (CONF) belongs to the service elements, also called service primitives, of the layers of the OSI reference model. It serves the service provider as confirmation for a previous request of a service user.
In communication, a service user sends a request to the communication partner via the service provider. The latter responds to the request with a response, which is sent to the requesting service user via the service provider as a confirmation.