Complete Protocol dictionary, glossary and reference

BPDU: Bridge Protocol Data Unit

Bridge Protocol Data Unit (BPDU), a protocol in the PPP suite, refers to some of "hello packets" of the spanning tree protocol sent out at intervals to exchange information among bridges in the network. BPDUs help describe and identify attributes of a switch port and allow for switches to obtain information about each other.

Standard Organization

IETF

Related Document

RFC 951