X.25 Network

X.25 Introduction X.25 is the oldest Packet-Switched service, created even earlier than OSI model. It is designed for low data rate and high error-rate transmission facilities, and provides error correction and orderly delivery on hop-by-hop basis. X.25 specification defines the interface between DTE and DCE, while X.75 defines the interface between two x.25 networks. X.25 …

Continue reading ‘X.25 Network’ »