The articles Protocol Data Unit and Service Data Unit overlap thematically. Help me to better differentiate or merge the articles (→ instructions ) . To do this, take part in the relevant redundancy discussion . Please remove this module only after the redundancy has been completely processed and do not forget to include the relevant entry on the redundancy discussion page{{ Done | 1 = ~~~~}}to mark. PM3 10:06, Dec 11, 2017 (CET)
In telecommunications, a distinction is made between information that is delivered as a unit between peer entities in a network and that can contain control information such as network address or user data. Another meaning is found in a layered system, a data unit that is specified in a protocol of a certain layer and that consists of protocol control information and possibly useful data of this layer. For example: Bridge PDU or iSCSI PDU.
