Short for protocol data unit, PDU is information delivered through a network layer. For the network to understand what layer is being discussed, a single letter is prefixed to the PDU.

LPDU - Communication for the data link layer.

NPDU - Communication for the network layer.

TPDU - Communication for the transport layer.

BPDU, Computer abbreviations, Network terms, OSI, SDU

  • Network and network card help and support.