Glossary of Data Communications Terms

Courtesy Enterprise-Wide Computing, Inc.

Term: protocol data unit (PDU)
Definition: the sequence of contiguous octets delivered as a unit from or to the MAC sublayer. A valid LLC PDU is at least 3 octets in length, and contains two address fields and a control field. A PDU may or may not include an information field in addition.

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Last Modified:
Wednesday, April 22, 1998