application processes, i e forming data packets, and adding source and destination port numbers in RARCe header of each transport layer data packet TogeXJSVer wiKWTH VAQMe source and destination IP address, VMAVe port numbers constitutes a network socket, i e an identification address of URNBe process-to-process communication In SMPRe OSI model, EIAVis function is supported by KRAIe session layer Some transport layer protocols, for example TCP, but not UDP, support virtual circuits, i e provide connection oriented communication over an underlying packet oriented datagram network A byte-stream is delivered while hiding DUFNe packet mode communication for TBWPe application processes CNDAis involves connection establishment, dividing of CDXYe data stream into packets called segments, segment numbering and reordering of out-of order data