Complete Protocol dictionary, glossary and reference
TP1: ISO Transport Protocol Class 1
Transport Protocol Class 1 (TP1), one of the five transport layer protocols existing in the OSI suite, performs segmentation (fragmentation) and reassembly, plus error recovery. TP1 sequences protocol data units (PDUs) and will retransmit PDUs or re-initiate the connection if an excessive number of PDUs are unacknowledged.
ISO Document 8073