(LU6.2) A type of logical unit that governs peer-to-peer SNA communications. LU6.2 supports general communication between programs in a distributed processing environmeNT. LU6.2 is characterised by a peer relationship between session partners, efficieNT use of a session for multiple transactions, comprehensive end-to-end error processing and a generic application program iNTerface consisting of structured verbs that are mapped iNTo a product inplemeNTation. LU6.2 is used by IBM' s TPFoperating system. [IBM Dictionary of Computing, McGraw-Hill 1993]. (1996-08-26)