Complete Protocol dictionary, glossary and reference
CONP: OSI Connection-Oriented Network Protocol
OSI Connection-Oriented Network Protocol (CONP) is an OSI network layer protocol that carries upper-layer data and error indications over connection-oriented links. Two types of OSI network layer services are available: Connectionless Network Service (CLNS) and Connection-Mode Network Service (CMNS). CONP, based on the X.25 Packet-Layer Protocol (PLP), provides the interface between CMNS and upper layers.