Optical network station suitable to insert packets within a packet stream in transit.

The station has a detecting device to detect a stream of upstream packets (Q1-Q4) to form a transmission control signal. A packet (P1) transmitted and inserted between two packets (Q2, Q3; Q3, Q4) delimiting a void is coupled to one of the packets (Q2, Q4) i.e. the packet (P1) is temporarily separated either from the packet (Q2) or the packet (Q4). The packet (P1) is separated for a time interval lower than a determined maximum value. An independent claim is also included for an optical transmission network including stations and optical connection for transmitting stream of packets.